CN209129912U - A kind of multifunctional DC rotation speed of fan controller and control system - Google Patents

A kind of multifunctional DC rotation speed of fan controller and control system Download PDF

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Publication number
CN209129912U
CN209129912U CN201821716554.1U CN201821716554U CN209129912U CN 209129912 U CN209129912 U CN 209129912U CN 201821716554 U CN201821716554 U CN 201821716554U CN 209129912 U CN209129912 U CN 209129912U
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China
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rotary speed
speed instruction
resistance
fan
level
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刘访
李金�
蔡思宏
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Zhuhai Siqi Technology Co Ltd
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Zhuhai Siqi Technology Co Ltd
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Abstract

The utility model discloses a kind of multifunctional DC rotation speed of fan controller and control system, the multifunctional DC rotation speed of fan controller includes gear rotary speed instruction conditioning circuit, level rotary speed instruction conditioning circuit, communication rotary speed instruction conditioning circuit and DC fan rotational speed governor MCU；The gear rotary speed instruction conditioning circuit, which receives gear rotary speed instruction and exports gear rotary speed instruction, gives DC fan rotational speed governor MCU；The level rotary speed instruction conditioning circuit receives level rotary speed instruction FAN_VSP_M and output level rotary speed instruction FAN_VSP gives DC fan rotational speed governor MCU；The communication rotary speed instruction conditioning circuit, which receives communication rotary speed instruction RXD and exports communication rotary speed instruction DRI_RXD_FROM_MAIN, gives DC fan rotational speed governor MCU；The utility model receives the revolving speed that gear rotary speed instruction, level rotary speed instruction and communication rotary speed instruction control DC fan by gear rotary speed instruction conditioning circuit, level rotary speed instruction conditioning circuit and communication rotary speed instruction conditioning circuit.

Description

A kind of multifunctional DC rotation speed of fan controller and control system
Technical field
The utility model relates to DC fan technical field, and in particular to a kind of multifunctional DC rotation speed of fan controller and control System processed.
Background technique
Traditional DC fan revolution speed control system exports revolving speed control instruction using master control borad and gives DC fan revolving speed control Device processed adjusts the duty ratio of the pwm signal of DC fan rotational speed governor output.DC fan power modules IPM receives direct current The pwm signal of rotation speed of fan controller output, controls the revolving speed of DC fan.
Existing master control borad can export gear revolving speed control instruction or level revolving speed control instruction or communication revolving speed control It instructs and gives DC fan rotational speed governor, but DC fan rotational speed governor can only receive gear revolving speed control instruction, level One of revolving speed control instruction and communication revolving speed control instruction cannot receive gear revolving speed control instruction simultaneously, level turns Fast control instruction and communication these three revolving speed control instructions of revolving speed control instruction.
Utility model content
First purpose of the utility model is intended to provide a kind of multifunctional DC rotation speed of fan controller, receives gear and turns Fast control instruction, level revolving speed control instruction and communication three kinds of revolving speed control instructions of revolving speed control instruction.
To achieve the goals above, the utility model takes the following technical solution:
A kind of multifunctional DC rotation speed of fan controller, including gear rotary speed instruction conditioning circuit, level rotary speed instruction tune Manage circuit, communication rotary speed instruction conditioning circuit and DC fan rotational speed governor MCU；The gear rotary speed instruction conditioning circuit Gear rotary speed instruction input terminal receive gear rotary speed instruction；The gear rotary speed instruction of the gear rotary speed instruction conditioning circuit is defeated Outlet is connect with the gear rotary speed instruction input terminal of DC fan rotational speed governor MCU, is exported gear rotary speed instruction and is given direct current wind Machine rotational speed governor MCU；The level rotary speed instruction input terminal of the level rotary speed instruction conditioning circuit receives level rotary speed instruction FAN_VSP_M；The level rotary speed instruction output end and DC fan rotational speed governor MCU of the level rotary speed instruction conditioning circuit The connection of level rotary speed instruction input terminal, output level rotary speed instruction FAN_VSP gives DC fan rotational speed governor MCU；It is described The communication rotary speed instruction input terminal for communicating rotary speed instruction conditioning circuit receives communication rotary speed instruction RXD；The communication rotary speed instruction The communication rotary speed instruction output end of conditioning circuit is connect with the communication rotary speed instruction input terminal of DC fan rotational speed governor MCU, It exports communication rotary speed instruction DRI_RXD_FROM_MAIN and gives DC fan rotational speed governor MCU.
Further, the gear rotary speed instruction includes high-grade rotary speed instruction H1, middle-grade rotary speed instruction M1 and low-grade turn Speed instruction L1；The gear rotary speed instruction conditioning circuit includes high-grade rotary speed instruction conditioning circuit, middle-grade rotary speed instruction conditioning electricity Road and low-grade rotary speed instruction conditioning circuit；The high-grade rotary speed instruction input terminal of the top grade rotary speed instruction conditioning circuit receives high Shelves rotary speed instruction H1；The high-grade rotary speed instruction output end and DC fan rotational speed governor of the top grade rotary speed instruction conditioning circuit The high-grade rotary speed instruction input terminal of MCU connects, and exports top grade rotary speed instruction FAN_H_DT and gives DC fan rotational speed governor MCU；
The middle-grade rotary speed instruction input terminal of the middle-grade rotary speed instruction conditioning circuit receives middle-grade rotary speed instruction M1；In described The middle-grade rotary speed instruction output end and the middle-grade rotary speed instruction of DC fan rotational speed governor MCU of shelves rotary speed instruction conditioning circuit are defeated Enter end connection, exports middle-grade rotary speed instruction FAN_M_DT and give DC fan rotational speed governor MCU；The low grade rotary speed instruction conditioning The low-grade rotary speed instruction input terminal of circuit receives low-grade rotary speed instruction L1；The low-grade revolving speed of the low grade rotary speed instruction conditioning circuit Instruction output end is connect with the low-grade rotary speed instruction input terminal of DC fan rotational speed governor MCU, exports low-grade rotary speed instruction FAN_L_DT gives DC fan rotational speed governor MCU.
Further, the top grade rotary speed instruction H1 is analog signal, and the top grade rotary speed instruction FAN_H_DT is number Signal, the top grade rotary speed instruction conditioning circuit is for converting analog signals into digital signal；The middle-grade rotary speed instruction M1 For analog signal, the middle-grade rotary speed instruction FAN_M_DT is digital signal, and the middle-grade rotary speed instruction conditioning circuit is used for will Analog signal is converted into digital signal；The low grade rotary speed instruction L1 is analog signal, the low grade rotary speed instruction FAN_L_DT For digital signal, the low grade rotary speed instruction conditioning circuit is for converting analog signals into digital signal.
As a specific technical scheme, the high-grade rotary speed instruction conditioning circuit includes the 4th diode, the 4th resistance, the Five resistance, the 6th resistance, the 7th resistance, the 8th resistance, first capacitor, the second capacitor and the first photoelectrical coupler；Four or two Grade pipe anode meet high-grade rotary speed instruction H1, the cathode of the 4th diode is connect with one end of the 4th resistance, the 4th resistance it is another One end is connect with one end of the 5th resistance, and the other end of the 5th resistance and one end of the 6th resistance and one end of first capacitor connect It connects, the other end of the 6th resistance and another terminal connecting zero line of first capacitor, two electric signals input of the first photoelectrical coupler Hold it is in parallel with first capacitor, an electrical signal of the first photoelectrical coupler and one end of the 7th resistance and the 8th resistance One end connection, another termination A+5V voltage of the 7th resistance, the other end of the 8th resistance are connect with one end of the second capacitor, and second Another electrical signal of the other end of capacitor and the first photoelectrical coupler is grounded A_GND；8th resistance and the second capacitor Common end export high-grade rotary speed instruction FAN_H_DT；
The middle-grade rotary speed instruction conditioning circuit include the 5th diode, the 9th resistance, the tenth resistance, eleventh resistor, Twelfth resistor, thirteenth resistor, third capacitor, the 4th capacitor and the second photoelectrical coupler；The anode of 5th diode connects Middle-grade rotary speed instruction M1, the cathode of the 5th diode are connect with one end of the 9th resistance, the other end of the 9th resistance and the tenth electricity One end of resistance connects, and the other end of the tenth resistance and one end of eleventh resistor and one end of third capacitor connect, and the 11st The other end of resistance and another terminal connecting zero line AC_N of third capacitor, two electric signal input ends of the second photoelectrical coupler with Third capacitor is in parallel, an electrical signal of the second photoelectrical coupler and one end of twelfth resistor and thirteenth resistor One end connection, another termination A_5V voltage of twelfth resistor, the other end of thirteenth resistor are connect with one end of the 4th capacitor, The other end of 4th capacitor and another electrical signal of the second photoelectrical coupler are grounded A_GND；Thirteenth resistor and the The common end of four capacitors exports middle-grade rotary speed instruction FAN_M_DT；
The low grade rotary speed instruction conditioning circuit includes the 6th diode, the 14th resistance, the 15th resistance, the 16th electricity Resistance, the 17th resistance, the 18th resistance, the 5th capacitor, the 6th capacitor and third photoelectrical coupler；The anode of 6th diode Shift down rotary speed instruction L1, the cathode of the 6th diode are connect with one end of the 14th resistance, the other end of the 14th resistance with One end of 15th resistance connects, and the other end of the 15th resistance and one end of the 16th resistance and one end of the 5th capacitor connect It connects, the other end of the 16th resistance and another terminal connecting zero line AC_N of the 5th capacitor, two telecommunications of third photoelectrical coupler Number input terminal is in parallel with the both ends of the 5th capacitor, and the one of an electrical signal of third photoelectrical coupler and the 17th resistance End is connected with one end of the 18th resistance, another termination A_+5V voltage of the 17th resistance, the other end of the 18th resistance and the One end of six capacitors connects, and the other end of the 6th capacitor and another electrical signal of third photoelectrical coupler are grounded A_ GND；The common end of 18th resistance and the 6th capacitor exports low-grade rotary speed instruction FAN_L_DT.
As a specific technical scheme, the level rotary speed instruction conditioning circuit includes level rotary speed instruction conditioning part； The level rotary speed instruction input terminal of level rotary speed instruction conditioning part receives level rotary speed instruction FAN_VSP_M；The electricity The level rotary speed instruction output end and the level rotary speed instruction of DC fan rotational speed governor MCU of flat rotary speed instruction conditioning part are defeated Enter end connection, output level rotary speed instruction FAN_VSP gives DC fan rotational speed governor MCU；The level rotary speed instruction conditioning Part includes the 19th resistance, the 20th resistance, the 21st resistance, the 22nd resistance, the 23rd resistance, the four or three pole Pipe, the 4th photoelectrical coupler, the 7th capacitor, the 8th capacitor and the first zener diode；
One termination level rotary speed instruction FAN_VSP_M of the 19th resistance, the other end of the 19th resistance and the 20th electricity The connection of the base stage of one end of resistance and the 4th triode, the other end of the 20th resistance and the emitter ground connection of the 4th triode GND, the collector of the 4th triode are connect with an electric signal input end of the 4th photoelectrical coupler, the 4th photoelectrical coupler Another electric signal input end is connect with one end of the 21st resistance, another termination+5V voltage of the 21st resistance, third One electrical signal of photoelectrical coupler is connect with one end of the 22nd resistance, another termination A_ of the 22nd resistance One end of+5V voltage, another electrical signal of third photoelectrical coupler and the 23rd resistance, the 7th capacitor one The cathode connection at end, one end of the 8th capacitor and the first zener diode, the other end of the 23rd resistance, the 7th capacitor The plus earth A_GND of the other end, the other end of the 8th capacitor and the first zener diode, the 23rd resistance, the 7th electricity The common end output level rotary speed instruction FAN_VSP of appearance, the 8th capacitor and the first zener diode.
Further, the level rotary speed instruction conditioning circuit further includes level speed feedback part；The level revolving speed The level speed feedback signal input terminal of feedback fraction and the level speed feedback signal output end of DC fan controller MCU connect It connects, receives the level speed feedback signal FAN_PG of DC fan controller MCU output；The electricity of level speed feedback part Flat turn speed feedback signal output, output level speed feedback signal FAN_PG_M；The level speed feedback signal FAN_PG It is used to feed back the actual speed of direct current generator with level speed feedback signal FAN_PG_M.
As a specific technical scheme, level speed feedback part includes the 9th capacitor, the tenth capacitor, the 11st electricity Appearance, the 24th resistance, the 25th resistance, the 26th resistance and the 5th photoelectrical coupler；One end of 11st capacitor And the 5th photoelectrical coupler an electric signal input end receive level speed feedback signal FAN_PG, the 11st capacitor it is another One end is connect with one end of another electric signal input end of the 5th photoelectrical coupler and the 26th resistance, the 26th electricity One end of another termination A_+5V voltage of resistance, an electrical signal of the 5th photoelectrical coupler and the 25th resistance, the One end of 24 resistance and the connection of one end of the tenth capacitor, another termination+5V voltage of the 25th resistance, the 24th The other end of resistance is connect with one end of the 9th capacitor, another electrical signal, the tenth capacitor of the 5th photoelectrical coupler The other end and the other end of the 9th capacitor be grounded GND, the common end output level turn of the 24th resistance and the 9th capacitor Fast feedback signal FAN_PG_M.
As a specific technical scheme, the communication rotary speed instruction conditioning circuit includes that communication rotary speed instruction improves part； The communication rotary speed instruction input terminal of the communication rotary speed instruction conditioning part receives communication rotary speed instruction RXD；The communication revolving speed The communication rotary speed instruction output end of instruction conditioning part and the communication rotary speed instruction input terminal of DC fan rotational speed governor MCU connect It connects, exports communication rotary speed instruction DRI_RXD_FROM_MAIN and give DC fan rotational speed governor MCU；The communication rotary speed instruction Conditioning part includes the 30th resistance, the 31st resistance, the 32nd resistance, the 13rd capacitor and the 7th photoelectric coupling Device；
Letter rotary speed instruction RXD, the other end and the 7th photoelectrical coupler of the 30th resistance are connected in one end of 30th resistance The connection of an electric signal input end, another electric signal input end of the 7th photoelectrical coupler connects+5V voltage, the 7th photoelectricity coupling One electrical signal of clutch is connect with one end of one end of the 31st resistance and the 32nd resistance, and the 31st Another termination A_+5V voltage of resistance, the other end of the 32nd resistance are connect with one end of the 13rd capacitor, the 7th photoelectricity coupling Another electrical signal of clutch and the other end of the 13rd capacitor are grounded A_GND, the 32nd resistance and the 13rd The common end output communication rotary speed instruction DRI_RXD_FROM_MAIN of capacitor.
Further, the communication rotary speed instruction conditioning circuit further includes communication speed feedback part；The communication revolving speed The communication speed feedback signal input terminal of feedback fraction and the communication speed feedback signal output end of DC fan controller MCU connect It connects, receives the communication speed feedback signal DRI_TXD_T0_MAIN of DC fan controller MCU output；The communication revolving speed is anti- Present the communication speed feedback signal output end output communication speed feedback signal TXD of part；The communication speed feedback signal DRI_TXD_T0_MAIN with communicate speed feedback signal TXD for feeding back the actual speed of direct current generator.
As a specific technical scheme, the communication speed feedback part includes the 12nd capacitor, the 27th resistance, the 28 resistance, the 29th resistance and the 6th photoelectrical coupler；One termination DC fan revolving speed control of the 29th resistance The communication speed feedback signal DRI_TXD_T0_MAIN of device MCU output processed, a telecommunications of the other end and the 6th photoelectrical coupler The connection of number input terminal, another electric signal input end of the 6th photoelectrical coupler connect A_+5V voltage, and the one of the 6th photoelectrical coupler A electrical signal is connect with one end of one end of the 28th resistance and the 27th resistance, the 28th resistance it is another One termination+5V voltage, the other end of the 27th resistance are connect with one end of the 12nd capacitor, one end of the 12nd capacitor and Another electrical signal of 6th photoelectrical coupler is grounded GND, and the common end of the 27th resistance and the 12nd capacitor is defeated Speed feedback signal TXD is communicated out.
Second purpose of the utility model is intended to provide a kind of multifunctional DC rotation speed of fan control system, using gear Revolving speed control instruction, level revolving speed control instruction and communication three kinds of revolving speed control instructions of revolving speed control instruction control DC fan Revolving speed.
To achieve the goals above, the utility model takes the following technical solution:
A kind of multifunctional DC rotation speed of fan control system, including the first master control borad, the second master control borad, third master control borad with And above-mentioned multifunctional DC rotation speed of fan controller；The gear rotary speed instruction output end and the gear of first master control borad The gear rotary speed instruction input terminal of rotary speed instruction conditioning circuit connects, and exports gear rotary speed instruction to gear rotary speed instruction and improves electricity Road；The level rotary speed instruction of the level rotary speed instruction output end of second master control borad and the level rotary speed instruction conditioning circuit The connection of conditioning circuit input terminal, output level rotary speed instruction FAN_VSP_M give level rotary speed instruction conditioning circuit；The third master The communication rotary speed instruction output end for controlling plate is connect with the communication rotary speed instruction input terminal of the communication rotary speed instruction conditioning circuit, defeated Communication rotary speed instruction RXD gives communication rotary speed instruction conditioning circuit out.
A kind of multifunctional DC rotation speed of fan control system, including the first master control borad, the second master control borad, third master control borad with And above-mentioned multifunctional DC rotation speed of fan controller；The high-grade rotary speed instruction output end and the gear of first master control borad turn The high-grade rotary speed instruction input terminal connection of speed instruction conditioning circuit, exports top grade rotary speed instruction H1 to gear rotary speed instruction and improves electricity Road；The middle-grade rotary speed instruction of the middle-grade rotary speed instruction output end of first master control borad and the gear rotary speed instruction conditioning circuit Input terminal connection, exports middle-grade rotary speed instruction M1 and gives gear rotary speed instruction conditioning circuit；The low-grade revolving speed of first master control borad Instruction output end is connect with the low-grade rotary speed instruction input terminal of the gear rotary speed instruction conditioning circuit, exports low-grade rotary speed instruction L1 gives gear rotary speed instruction conditioning circuit；The top grade rotary speed instruction H1 is analog signal, the top grade rotary speed instruction FAN_H_ DT is digital signal, and the top grade rotary speed instruction conditioning circuit is for converting analog signals into digital signal；The middle-grade turns Fast command M 1 is analog signal, and the middle-grade rotary speed instruction FAN_M_DT is digital signal, the middle-grade rotary speed instruction conditioning electricity Road is for converting analog signals into digital signal；The low grade rotary speed instruction L1 is analog signal, the low grade rotary speed instruction FAN_L_DT, the low grade rotary speed instruction conditioning circuit is for converting analog signals into digital signal；Second master control borad Level rotary speed instruction output end and the level rotary speed instruction conditioning circuit level rotary speed instruction conditioning circuit input terminal connect It connects, output level rotary speed instruction FAN_VSP_M gives level rotary speed instruction conditioning circuit；The communication revolving speed of the third master control borad refers to Output end and the communication rotary speed instruction input terminal of the communication rotary speed instruction conditioning circuit is enabled to connect, output communication rotary speed instruction RXD gives communication rotary speed instruction conditioning circuit.
A kind of multifunctional DC rotation speed of fan control system, including the first master control borad, the second master control borad, third master control borad with And above-mentioned multifunctional DC rotation speed of fan controller；The gear rotary speed instruction output end and the gear of first master control borad turn The gear rotary speed instruction input terminal connection of speed instruction conditioning circuit, exports gear rotary speed instruction to gear rotary speed instruction and improves electricity Road；The level rotary speed instruction of the level rotary speed instruction output end of second master control borad and level rotary speed instruction conditioning part The connection of conditioning circuit input terminal, output level rotary speed instruction FAN_VSP_M improve part to level rotary speed instruction；The level turns The level speed feedback signal input terminal of the level speed feedback signal output end of fast feedback fraction and second master control borad connects It connects, output level speed feedback signal gives the second master control borad；The communication rotary speed instruction output end of the third master control borad with it is described The communication rotary speed instruction input terminal connection for communicating rotary speed instruction conditioning circuit exports communication rotary speed instruction RXD and refers to communication revolving speed Enable conditioning circuit.
A kind of multifunctional DC rotation speed of fan control system, including the first master control borad, the second master control borad, third master control borad with And above-mentioned multifunctional DC rotation speed of fan controller；The gear rotary speed instruction output end and the gear of first master control borad turn The gear rotary speed instruction input terminal connection of speed instruction conditioning circuit, exports gear rotary speed instruction to gear rotary speed instruction and improves electricity Road；The level rotary speed instruction of the level rotary speed instruction output end of second master control borad and the level rotary speed instruction conditioning circuit The connection of conditioning circuit input terminal, output level rotary speed instruction FAN_VSP_M give level rotary speed instruction conditioning circuit；The third master The communication rotary speed instruction output end for controlling plate is connect with the communication rotary speed instruction input terminal of the communication rotary speed instruction conditioning part, defeated Communication rotary speed instruction RXD improves part to communication rotary speed instruction out；The communication speed feedback letter of the communication speed feedback part Number output end is connect with the communication speed feedback signal input terminal of the third master control borad, output communication speed feedback signal TXD Give third master control borad.
The utility model the utility model has the advantages that
From the above technical scheme, the utility model uses gear rotary speed instruction conditioning circuit, level rotary speed instruction tune It manages circuit and communication rotary speed instruction conditioning circuit reception gear rotary speed instruction, level rotary speed instruction and communication rotary speed instruction is straight Flow fan controller, so that DC fan controller MCU can receive three kinds of rotary speed instructions (gear rotary speed instruction, level revolving speed Instruction and communication rotary speed instruction) control DC fan revolving speed.Further, the utility model passes through high-grade rotary speed instruction tune It manages circuit, middle-grade rotary speed instruction conditioning circuit and low-grade rotary speed instruction conditioning circuit and receives high-grade rotary speed instruction, middle-grade revolving speed Instruction and low-grade rotary speed instruction realize DC fan with third speed (high speed, middling speed, low speed) operation；Further, this reality It is incited somebody to action with novel by high-grade rotary speed instruction conditioning circuit, middle-grade rotary speed instruction conditioning circuit and low-grade rotary speed instruction conditioning circuit Analog signal is converted into the digital signal that DC fan rotational speed governor MCU can receive；Further, the utility model uses The actual speed of level speed feedback partial feedback DC fan realizes closed loop control of the level rotary speed instruction to DC fan revolving speed System.Further, the utility model realizes communication revolving speed using the actual speed of communication speed feedback partial feedback DC fan Instruct the closed-loop control to DC fan revolving speed.
Detailed description of the invention
In order to illustrate more clearly of the utility model embodiment, attached drawing needed in the embodiment is done simply below Introduction.The accompanying drawings in the following description is only the embodiments of the present invention, is come for those of ordinary skill in the art It says, without creative efforts, can also be obtained according to these attached drawings other accompanying drawings.
Fig. 1 is the overall structure block diagram of the utility model multifunctional DC rotation speed of fan control system；
Fig. 2 is the structural block diagram of the first master control borad of the utility model；
Fig. 3 is the circuit diagram of the first master control borad of the utility model；
Fig. 4 is the structural block diagram of the utility model gear rotary speed instruction conditioning circuit；
Fig. 5 is the circuit diagram of the utility model gear rotary speed instruction conditioning circuit；
Fig. 6 is the structural block diagram of the second master control borad of the utility model；
Fig. 7 is the circuit diagram of the second master control borad of the utility model；
Fig. 8 is the structural block diagram of the utility model level rotary speed instruction conditioning circuit；
Fig. 9 is the circuit diagram of the utility model level rotary speed instruction conditioning circuit；
Figure 10 is the structural block diagram of the utility model third master control borad；
Figure 11 is the circuit diagram of the utility model third master control borad；
Figure 12 is the structural block diagram of the utility model communication rotary speed instruction conditioning circuit；
Figure 13 is the circuit diagram of the utility model communication rotary speed instruction conditioning circuit；
Figure 14 is the circuit diagram of the utility model DC fan rotational speed governor MCU；
Figure 15 is the utility model DC fan power modules, DC voltage sample circuit and DC current sample circuit Circuit diagram.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail.
In order to which the purpose of this utility model, technical solution, advantage is more clearly understood, with reference to the accompanying drawings and embodiments The present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain this Utility model is not used to limit the utility model.
As shown in Figure 1, a kind of multifunctional DC rotation speed of fan control system includes the first master control borad, the second master control borad, the Three master control borads, multifunctional DC rotation speed of fan controller and DC fan power modules IPM；Multifunctional DC rotation speed of fan control Device processed includes gear rotary speed instruction conditioning circuit, level rotary speed instruction conditioning circuit, communication rotary speed instruction conditioning circuit, direct current wind Machine rotational speed governor MCU, DC voltage sample circuit and DC current sample circuit.
As shown in Figure 1, the gear of the gear rotary speed instruction output end of the first master control borad and gear rotary speed instruction conditioning circuit The connection of rotary speed instruction input terminal, the high-grade rotary speed instruction H1 of output control DC fan high-speed cruising, control DC fan middling speed The middle-grade rotary speed instruction M1 of operation and the low-grade rotary speed instruction L1 of control DC fan low speed operation give gear rotary speed instruction tune Manage circuit；The gear rotary speed instruction output end of gear rotary speed instruction conditioning circuit and the gear of DC fan rotational speed governor MCU The connection of rotary speed instruction input terminal, high-grade rotary speed instruction FAN_H_DT, the control direct current wind of output control DC fan high-speed cruising The middle-grade rotary speed instruction FAN_M_DT of the machine middling speed operation and low-grade rotary speed instruction FAN_L_ of control DC fan low speed operation DT gives DC fan rotational speed governor MCU.
In the present embodiment, high-grade rotary speed instruction H1, middle-grade rotary speed instruction M1, low-grade rotary speed instruction L1, high-grade revolving speed refer to Enabling FAN_H_DT, middle-grade rotary speed instruction FAN_M_DT and low grade rotary speed instruction FAN_L_DT is gear rotary speed instruction；It is high-grade Rotary speed instruction H1, middle-grade rotary speed instruction M1 and low grade rotary speed instruction L1 are first before the conditioning of gear rotary speed instruction conditioning circuit The gear rotary speed instruction of master control borad output；High-grade rotary speed instruction FAN_H_DT, middle-grade rotary speed instruction FAN_M_DT and low grade turn Speed instruction FAN_L_DT is exporting to the gear of DC fan rotational speed governor MCU after gear rotary speed instruction conditioning circuit improves Rotary speed instruction.
In the present embodiment, high-grade rotary speed instruction H1, the middle-grade rotary speed instruction M1 of the output of the first master control borad and low grade turn Speed instruction L1 is analog signal；High-grade rotary speed instruction FAN_H_DT, the middle-grade revolving speed of gear rotary speed instruction conditioning circuit output Instructing FAN_M_DT and low grade rotary speed instruction FAN_L_DT is digital signal；Gear rotary speed instruction conditioning circuit is used for the The analog signal (i.e. H1, M1, L1) of one master control borad output is converted into digital signal (i.e. FAN_H_DT, FAN_M_DT, FAN_L_ DT)。
In the present embodiment, when DC fan rotational speed governor MCU receives high-grade rotary speed instruction FAN_H_DT, direct current Three phase control signal FAN_U, FAN_V, FAN_P of power of fan mould group IPM output control DC fan high-speed cruising；Work as direct current When rotation speed of fan controller MCU receives middle-grade rotary speed instruction FAN_M_DT, the three of DC fan power modules IPM output are phased Signal FAN_U, FAN_V, FAN_P control DC fan middling speed operation processed；When DC fan rotational speed governor MCU receives low grade When rotary speed instruction FAN_L_DT, three phase control signal FAN_U, FAN_V, FAN_P control of DC fan power modules IPM output The operation of DC fan low speed.
In the present embodiment, the first master control borad is different from the reference potential of DC fan rotational speed governor MCU, gear revolving speed Instruct conditioning circuit by the first master control borad and DC fan rotational speed governor MCU Phototube Coupling.
As shown in Figure 1, the level of the level rotary speed instruction output end of the second master control borad and level rotary speed instruction conditioning circuit The connection of rotary speed instruction input terminal, output level rotary speed instruction FAN_VSP_M give level rotary speed instruction conditioning circuit；Level revolving speed refers to The level rotary speed instruction input terminal of the level rotary speed instruction output end and DC fan rotational speed governor MCU that enable conditioning circuit connects It connects, output level rotary speed instruction FAN_VSP gives DC fan rotational speed governor MCU.
In the present embodiment, level rotary speed instruction FAN_VSP_M and level rotary speed instruction FAN_VSP is that level revolving speed refers to It enables；Level rotary speed instruction FAN_VSP_M is that the level of the second master control borad output before the conditioning of level rotary speed instruction conditioning circuit turns Speed instruction；Level rotary speed instruction FAN_VSP is that exporting after level rotary speed instruction conditioning circuit improves gives DC fan revolving speed control The level rotary speed instruction of device MCU processed.
In the present embodiment, the level rotary speed instruction FAN_VSP_M of the second master control borad output is pulse signal；Second master control Plate controls the level of level rotary speed instruction FAN_VSP by the duty ratio of control level rotary speed instruction FAN_VSP_M；Level revolving speed Instruction FAN_VSP is analog signal, i.e. the level of level rotary speed instruction FAN_VSP is consecutive variations；The revolving speed of DC fan It is directly proportional to the level of level rotary speed instruction FAN_VSP；The revolving speed of DC fan can take successive value.
In the present embodiment, as the level rotary speed instruction FAN_ of the DC fan rotational speed governor MCU high level received When VSP, the revolving speed of DC fan is fast；When the low level level rotary speed instruction that DC fan rotational speed governor MCU is received When FAN_VSP, the revolving speed of DC fan is slow.
In the present embodiment, the second master control borad is different from the reference potential of DC fan rotational speed governor MCU, level revolving speed Instruct conditioning circuit by DC fan rotational speed governor MCU and the second master control borad Phototube Coupling.
As shown in Figure 1, the communication rotary speed instruction output end of third master control borad and the communication for communicating rotary speed instruction conditioning circuit The connection of rotary speed instruction input terminal exports communication rotary speed instruction RXD and gives communication rotary speed instruction conditioning circuit；Communicate rotary speed instruction conditioning The communication rotary speed instruction output end of circuit is connect with the communication rotary speed instruction input terminal of DC fan rotational speed governor MCU, output Communication rotary speed instruction DRI_RXD_FROM_MAIN give DC fan rotational speed governor MCU.
In the present embodiment, communication rotary speed instruction RXD is that communication turns with rotary speed instruction DRI_RXD_FROM_MAIN is communicated Speed instruction；Communication rotary speed instruction RXD is the communication revolving speed of the third master control borad output before communicating the conditioning of rotary speed instruction conditioning circuit Instruction；Communication rotary speed instruction DRI_RXD_FROM_MAIN is that exporting after communicating the conditioning of rotary speed instruction conditioning circuit gives direct current wind The communication rotary speed instruction of machine rotational speed governor MCU.
In the present embodiment, the revolving speed of DC fan with communicate the numerical value of rotary speed instruction DRI_RXD_FROM_MAIN at just Than；Communication rotary speed instruction DRI_RXD_FROM_MAIN can take multiple numerical value, and DC fan can set a variety of revolving speeds；When straight When the communication rotary speed instruction DRI_RXD_FROM_MAIN numerical value that flow fan rotational speed governor MCU is received becomes larger, DC fan Revolving speed becomes faster；When the communication rotary speed instruction DRI_RXD_FROM_MAIN numerical value that DC fan rotational speed governor MCU is received becomes smaller When, the revolving speed of DC fan is slack-off.
In the present embodiment, third master control borad is different from the reference potential of DC fan rotational speed governor MCU, communicates revolving speed Instruct conditioning circuit by DC fan rotational speed governor MCU and third master control borad Phototube Coupling.
As shown in Figure 1, the pwm control signal output end of DC fan rotational speed governor MCU and DC fan power modules The pwm control signal input terminal of IPM connects, output pwm control signal FAN_PWM_UP, FAN_PWM_UN, FAN_PWM_VP, FAN_PWM_VN, FAN_PWM_WP, FAN_PWM_WN give DC fan power modules IPM；The three of DC fan power modules IPM The connection of the three-phase control signal input of phase control signal output end and DC fan, exports three phase control signal FAN_U, FAN_ V, FAN_P controls the revolving speed of DC fan to DC fan.
In the present embodiment, FAN_PWM_UP is the side U phase P pwm control signal, and FAN_PWM_ is U phase N side PWM control letter Number, FAN_PWM_VP is the side V phase P pwm control signal, and FAN_PWM_VN is the side V phase N pwm control signal, FAN_PWM_WP W The side phase P pwm control signal, FAN_PWM_WN are the side W phase N pwm control signal.
As shown in Figure 1, the direct current of the DC current input terminal of DC current sample circuit and DC fan power modules IPM Current output terminal connection, receives DC current IU, IV of DC fan power modules IPM output, DC current sample circuit Direct current sample rate current output end is connect with the direct current sample rate current input terminal of DC fan rotational speed governor MCU, and output direct current is adopted Sample electric current IU_AD, IV_AD gives DC fan rotational speed governor MCU；The DC voltage of DC fan rotational speed governor MCU inputs End and the DC voltage input end of DC voltage sample circuit connect DC bus-bar voltage DC_P, the direct current of DC voltage sample circuit Sampled voltage output end is connect with the direct current sampling voltage input of DC fan rotational speed governor MCU, output direct current sampling electricity Pressure VDC_DC give DC fan rotational speed governor MCU；The fault detection signal input terminal of DC fan rotational speed governor MCU and straight The fault detection signal output end of flow fan power modules IPM connects, and receives the failure inspection of DC fan power modules IPM output Survey signal FAN_IPM_FO；The level speed feedback signal output end and level rotary speed instruction of DC fan rotational speed governor MCU The level speed feedback signal input terminal of conditioning circuit connects, and output level speed feedback signal FAN_PG gives level rotary speed instruction Conditioning circuit；The level speed feedback signal output end of level rotary speed instruction conditioning circuit and the level revolving speed of the second master control borad are anti- The connection of feedback signal input terminal, output level speed feedback signal FAN_PG_M give the second master control borad.
In the present embodiment, the actual speed of DC fan and DC fan power modules IPM output DC current IU, The DC bus-bar voltage DC_P of IV and input direct-current power of fan mould group IPM are related；DC current IU, IV and DC bus The numerical value of voltage DC_P is bigger, and the actual speed of DC fan is faster；DC fan rotational speed governor MCU samples electricity according to direct current IU_AD, IV_AD and direct current sampled voltage VDC_AD are flowed, the actual speed of DC fan, output level speed feedback letter are calculated Number FAN_PG gives level rotary speed instruction conditioning circuit, exports communication speed feedback signal DRI_TXD_TO_MAIN and gives communication revolving speed Instruct conditioning circuit；Level rotary speed instruction conditioning circuit output level speed feedback signal FAN_PG_M gives the second master control borad, leads to Letter rotary speed instruction conditioning circuit exports communication speed feedback signal TXD and gives third master control borad.
In the present embodiment, the level speed feedback signal FAN_PG of DC fan rotational speed governor MCU output, communication turn The level speed feedback signal FAN_PG_M that fast feedback signal DRI_TXD_TO_MAIN, level rotary speed instruction conditioning circuit export And the communication speed feedback signal TXD of communication rotary speed instruction conditioning circuit output shows the actual speed of DC fan；When When two master control borads receive level speed feedback signal FAN_PG_M, the second master control borad can be according to level speed feedback signal FAN_ PG_M adjusts the level of level rotary speed instruction FAN_VSP, and then adjusts the revolving speed of DC fan；When third master control borad receive it is logical When believing speed feedback signal TXD, third master control borad can adjust communication rotary speed instruction RXD according to communication speed feedback signal TXD Numerical value, and then adjust the revolving speed of DC fan.
In the present embodiment, DC fan power modules IPM has been internally integrated the inspection of the failures such as overvoltage, overcurrent and overheat Slowdown monitoring circuit；When the failures such as overvoltage, overcurrent and overheat occur for DC fan, DC fan power modules IPM exports failure Detection signal FAN_IPM_FO give DC fan rotational speed governor MCU；When DC fan rotational speed governor MCU receives direct current wind When the fault detection signal FAN_IPM_FO of machine power modules IPM output, DC fan rotational speed governor MCU stops output U phase N The side side pwm control signal FAN_PWM_UN, V phase N pwm control signal FAN_PWM_VN and W phase N side pwm control signal FAN_ PWM_WN reduces the current or voltage of DC fan, reduces DC fan and is risk of damage to because breaking down.
As shown in Fig. 2, the first master control borad includes the first MCU and master control borad gear rotary speed instruction conditioning circuit；Master control borad Gear rotary speed instruction conditioning circuit includes master control borad top grade rotary speed instruction conditioning circuit, master control borad middle-grade rotary speed instruction conditioning circuit And master control borad low grade rotary speed instruction conditioning circuit；The high-grade rotary speed instruction output end of first MCU refers to master control borad top grade revolving speed It enables the high-grade rotary speed instruction input terminal of conditioning circuit connect, exports top grade rotary speed instruction FAN_H_CONTROL and give master control borad top grade Rotary speed instruction conditioning circuit, master control borad top grade rotary speed instruction conditioning circuit export top grade rotary speed instruction H1 and give gear rotary speed instruction tune Manage circuit；The middle-grade rotary speed instruction output end of first MCU and the middle-grade rotary speed instruction of master control borad middle-grade rotary speed instruction conditioning circuit Input terminal connection, exports middle-grade rotary speed instruction FAN_M_CONTROL and gives master control borad middle-grade rotary speed instruction conditioning circuit, in master control borad Shelves rotary speed instruction conditioning circuit exports middle-grade rotary speed instruction M1 and gives gear rotary speed instruction conditioning circuit；The low-grade revolving speed of first MCU Instruction output end is connect with the low-grade rotary speed instruction input terminal of master control borad low grade rotary speed instruction conditioning circuit, is exported low-grade revolving speed and is referred to FAN_L_CONTROL is enabled to give master control borad low grade rotary speed instruction conditioning circuit, the output of master control borad low grade rotary speed instruction conditioning circuit is low Shelves rotary speed instruction L1 give gear rotary speed instruction conditioning circuit.
In the present embodiment, high-grade rotary speed instruction FAN_H_CONTROL, the middle-grade rotary speed instruction FAN_ of the first MCU output M_CONTROL and low grade rotary speed instruction FAN_L_CONTROL is digital signal, and master control borad rotary speed instruction conditioning circuit is by The digital signal (i.e. FAN_H_CONTROL, FAN_M_CONTROL and FAN_L_CONTROL) of one MCU output is converted into simulating Signal (i.e. H1, M1, L1).
As shown in figure 3, in the present embodiment, the chip model that the first MCU is used is R5F104BC；The pin of first MCU 12 pins 13 for exporting high-grade rotary speed instruction FAN_H_CONTROL, the first MCU export middle-grade rotary speed instruction FAN_M_CONTROL, The pin 14 of first MCU exports low-grade rotary speed instruction FAN_L_CONTROL, and the pin 7 of the first MCU is grounded GND, the first MCU's Pin 8 connects+5V voltage.
As shown in figure 3, master control borad top grade rotary speed instruction conditioning circuit includes first resistor R1, the first triode Q1, first Diode D1 and the first relay K1；The high-grade rotary speed instruction FAN_H_ of termination a first MCU output of first resistor R1 CONTROL, the other end of first resistor R1 are connect with the base stage of the first triode Q1, the emitter ground connection of the first triode Q1 The collector of GND, the first triode Q1 are connect with the anode of first diode D1, and the cathode of first diode D1 connects+15V electricity Pressure, the coil of the first relay K1 are connected between the positive electrode and negative electrode of first diode D1, a touching of the first relay K1 Another tip side of point termination firewire AC_L, the first relay K1 export high-grade rotary speed instruction H1.
As shown in figure 3, master control borad middle-grade rotary speed instruction conditioning circuit includes second resistance R2, the second triode Q2, second Diode D2 and the second relay K2；The middle-grade rotary speed instruction FAN_M_ of termination a first MCU output of second resistance R2 CONTROL, the other end of second resistance R2 are connect with the base stage of the second triode Q2, the emitter ground connection of the second triode Q2 GND, the collector of the second triode Q2 are connect with the anode of the second diode D2, and the cathode of the second diode D2 connects+15V electricity Pressure, the coil of the second relay K2 are connected between the positive electrode and negative electrode of the second diode D2, a touching of the second relay K2 Another tip side of point termination firewire AC_L, the second relay K2 export middle-grade rotary speed instruction M1.
As shown in figure 3, master control borad low grade rotary speed instruction conditioning circuit includes 3rd resistor R3, third transistor Q3, third Diode D3 and third relay K3；The low-grade rotary speed instruction FAN_L_ of termination a first MCU output of 3rd resistor R3 The other end of CONTROL, 3rd resistor R3 are connect with the base stage of third transistor Q3, the emitter ground connection of third transistor Q3 The collector of GND, third transistor Q3 are connect with the anode of third diode D3, and the cathode of third diode D3 connects+15V electricity Pressure, the coil of third relay K3 are connected between the positive electrode and negative electrode of third diode D3, a touching of third relay K3 Another tip side of point termination firewire AC_L, third relay K3 export low-grade rotary speed instruction L1.
In the present embodiment, when the first MCU exports top grade rotary speed instruction FAN_H_CONTROL, the first triode Q1 is led Logical, the first relay K1 closure exports high-grade rotary speed instruction H1；When the first MCU exports middle-grade rotary speed instruction FAN_M_CONTROL When, the second triode Q2 conducting, the second relay K2 closure exports middle-grade rotary speed instruction M1；When the first MCU exports low-grade revolving speed When instructing FAN_L_CONTROL, third transistor Q3 conducting, third relay K3 closure exports low-grade rotary speed instruction L1.
As shown in figure 4, gear rotary speed instruction conditioning circuit includes high-grade rotary speed instruction conditioning circuit, middle-grade rotary speed instruction tune Manage circuit and low-grade rotary speed instruction conditioning circuit；The high-grade rotary speed instruction input terminal of high-grade rotary speed instruction conditioning circuit receives master The high-grade rotary speed instruction H1 for controlling the output of plate top grade rotary speed instruction conditioning circuit, exports top grade rotary speed instruction FAN_H_DT and gives direct current wind Machine rotational speed governor MCU (such as Fig. 1, shown in 2,3,4)；The middle-grade rotary speed instruction input terminal of middle-grade rotary speed instruction conditioning circuit receives The middle-grade rotary speed instruction M1 of master control borad middle-grade rotary speed instruction conditioning circuit output, exports middle-grade rotary speed instruction FAN_M_DT to direct current Rotation speed of fan controller MCU (such as Fig. 1, shown in 2,3,4)；The low-grade rotary speed instruction of low-grade rotary speed instruction conditioning circuit inputs termination The low-grade rotary speed instruction L1 for receiving the output of master control borad low grade rotary speed instruction conditioning circuit exports low grade rotary speed instruction FAN_L_DT to straight Flow fan rotational speed governor MCU (such as Fig. 1, shown in 2,3,4).
As shown in figure 5, high-grade rotary speed instruction conditioning circuit include the 4th diode D4, the 4th resistance R4, the 5th resistance R5, 6th resistance R6, the 7th resistance R7, the 8th resistance R8, first capacitor C1, the second capacitor C2 and the first photoelectrical coupler U1；The The anode of four diode D4 meets the high-grade rotary speed instruction H1, the 4th diode D4 of master control borad top grade rotary speed instruction conditioning circuit output Cathode connect with one end of the 4th resistance R4, the other end of the 4th resistance R4 is connect with one end of the 5th resistance R5, the 5th electricity Resistance R5 the other end connect with one end of one end of the 6th resistance R6 and first capacitor C1, the other end of the 6th resistance R6 and Another terminal connecting zero line AC_N of first capacitor C1, the light emitting source of the first photoelectrical coupler U1 (is in the present embodiment light-emitting diodes Pipe) it is connected in parallel on the both ends of first capacitor C1, the light-receiving device (being in the present embodiment phototriode) of the first photoelectrical coupler U1 Collector connect with one end of one end of the 7th resistance R7 and the 8th resistance R8, another termination A_+5V of the 7th resistance R7 Voltage, the other end of the 8th resistance R8 are connect with one end of the second capacitor C2, the other end of the second capacitor C2 and the first photoelectricity coupling The emitter of the light-receiving device of clutch U1 is grounded A_GND；The common end of 8th resistance R8 and the second capacitor C2 exports high-grade revolving speed and refers to Enable FAN_H_DT.
In the present embodiment, the 4th resistance R4 and the 5th resistance R5 of series connection can use the equal resistance of a resistance value Replacement.
As shown in figure 5, middle-grade rotary speed instruction conditioning circuit includes the 5th diode D5, the 9th resistance R9, the tenth resistance R10, eleventh resistor R11, twelfth resistor R12, thirteenth resistor R13, third capacitor C3, the 4th capacitor C4 and the second light Electric coupler U2；The anode of 5th diode D5 connects the middle-grade rotary speed instruction of master control borad middle-grade rotary speed instruction conditioning circuit output The cathode of M1, the 5th diode D5 are connect with one end of the 9th resistance R9, the other end of the 9th resistance R9 and the tenth resistance R10's One end connection, the other end of the tenth resistance R10 are connect with one end of one end of eleventh resistor R11 and third capacitor C3, the The other end of 11 resistance R11 and another terminal connecting zero line AC_N of third capacitor C3, the light emitting source of the second photoelectrical coupler U2 (being in the present embodiment light emitting diode) is connected in parallel on the both ends of third capacitor C3, the light-receiving device of the second photoelectrical coupler U2 ( In the present embodiment be phototriode) collector and twelfth resistor R12 one end and thirteenth resistor R13 one end connect It connects, another termination A+5V voltage of twelfth resistor R12, one end of the other end of thirteenth resistor R13 and the 4th capacitor C4 connect It connects, the emitter of the light-receiving device of the other end of the 4th capacitor C4 and the second photoelectrical coupler U2 is grounded A_GND；Thirteenth resistor The common end of R13 and the 4th capacitor C4 export middle-grade rotary speed instruction FAN_M_DT.
In the present embodiment, the 9th resistance R9 and the tenth resistance R10 of series connection can use the equal electricity of a resistance value Resistance replacement.
As shown in figure 5, low-grade rotary speed instruction conditioning circuit includes the 6th diode D6, the 14th resistance R14, the 15th electricity Hinder R15, the 16th resistance R16, the 17th resistance R17, the 18th resistance R18, the 5th capacitor C5, the 6th capacitor C6 and third Photoelectrical coupler U3；The anode of 6th diode D6 connects the low-grade rotary speed instruction of master control borad low grade rotary speed instruction conditioning circuit output The cathode of L1, the 6th diode D6 are connect with one end of the 14th resistance R14, the other end and the 15th of the 14th resistance R14 One end of resistance R15 connects, the other end of the 15th resistance R15 and one end of the 16th resistance R16 and the 5th capacitor C5's One end connection, the other end of the 16th resistance R16 and another terminal connecting zero line AC_N of the 5th capacitor C5, third photoelectrical coupler The light emitting source (being in the present embodiment light emitting diode) of U3 is connected in parallel on the both ends of the 5th capacitor C5, third photoelectrical coupler U3's The collector of light-receiving device (being in the present embodiment phototriode) and one end and the 18th resistance of the 17th resistance R17 One end of R18 connects, another termination A_+5V voltage of the 17th resistance R17, the other end of the 18th resistance R18 and the 6th electricity Hold one end connection of C6, the emitter of the light-receiving device of the other end and third photoelectrical coupler U3 of the 6th capacitor C6 is grounded A_GND； The common end of 18th resistance R18 and the 6th capacitor C6 exports low-grade rotary speed instruction FAN_L_DT.
In the present embodiment, the 14th resistance R14 and the 15th resistance R15 of series connection can be equal with a resistance value Resistance replacement.
In the present embodiment, the anode of the light emitting source of the first photoelectrical coupler U1 and cathode are the first photoelectrical coupler U1's Two electric signal input ends；The collector of the light-receiving device of first photoelectrical coupler U1 is with transmitting extremely the first photoelectrical coupler U1's Two electrical signals；The anode and cathode of the light emitting source of second photoelectrical coupler U2 are two of the second photoelectrical coupler U2 Electric signal input end；The collector of the light-receiving device of second photoelectrical coupler U2 and transmitting extremely two of the second photoelectrical coupler U2 Electrical signal；The anode and cathode of the light emitting source of third photoelectrical coupler U3 are two telecommunications of third photoelectrical coupler U3 Number input terminal；The collector of the light-receiving device of third photoelectrical coupler U3 and two telecommunications of transmitting extremely third photoelectrical coupler U3 Number output end.
In the present embodiment, the first master control borad is different from the reference potential of DC fan controller, the first photoelectrical coupler U1, the second photoelectrical coupler U2 and third photoelectrical coupler U3 are by the first master control borad and DC fan rotational speed governor MCU light It is electrically isolated.
As shown in fig. 6, the second master control borad includes the 2nd MCU and first interface.The level rotary speed instruction of 2nd MCU exports End is connect with the level rotary speed instruction input terminal of first interface, and output level rotary speed instruction FAN_VSP_M is to first interface；First The level rotary speed instruction output end of interface is connect with the level rotary speed instruction input terminal of level rotary speed instruction conditioning circuit, output electricity Flat rotary speed instruction FAN_VSP_M gives level rotary speed instruction conditioning circuit；The level speed feedback signal input terminal of first interface with The level speed feedback signal output end of level rotary speed instruction conditioning circuit connects, and receives the output of level rotary speed instruction conditioning circuit Level speed feedback signal FAN_PG_M；The level speed feedback signal output end of first interface and the level of the 2nd MCU turn Fast feedback signal input terminal connection, output level speed feedback signal FAN_PG_M give the 2nd MCU.
As shown in fig. 7, in the present embodiment, the chip model that the 2nd MCU is used is R5F104BC；The pin of 2nd MCU The pin 25 of 26 output level rotary speed instruction FAN_VSP_M, the 2nd MCU receives level speed feedback signal FAN_PG_M；First Interface is interface FAN_VOT_M；Interface FAN_VOT_M includes four interfaces, and first interface 1 connects+5V voltage, second interface The level rotary speed instruction FAN_VSP_M that 2 pins 26 for receiving the 2nd MCU export, third interface 3 receive level rotary speed instruction tune The level speed feedback signal FAN_PG_M of circuit output is managed, the 4th interface 4 is grounded GND.
As shown in figure 8, level rotary speed instruction conditioning circuit includes second interface, level rotary speed instruction conditioning part and electricity Flat turn speed feedback fraction；The level rotary speed instruction input terminal of second interface and the level rotary speed instruction output end of first interface connect It connects, receives the level rotary speed instruction FAN_VSP_M of first interface output；The level rotary speed instruction output end and level of second interface Rotary speed instruction improves the level rotary speed instruction input terminal connection of part, and output level rotary speed instruction FAN_VSP_M gives level revolving speed Instruction conditioning part；Level rotary speed instruction improves the level rotary speed instruction output end of part and the electricity of DC fan controller MCU The connection of flat turn speed command input, output level rotary speed instruction FAN_VSP give DC fan controller MCU；Level speed feedback Partial level speed feedback signal input terminal is connect with the level speed feedback signal output end of DC fan controller MCU, Receive the level speed feedback signal FAN_PG of DC fan controller MCU output；The level revolving speed of level speed feedback part Feedback signal output and the level speed feedback signal input terminal of second interface connect, output level speed feedback signal FAN_ PG_M is to second interface；The level speed feedback signal output end of second interface and the level speed feedback signal of first interface are defeated Enter end connection, output level speed feedback signal FAN_PG_M is to first interface.
As shown in figure 9, second interface is interface FAN_VOT_A；Interface FAN_VOT_A includes four interfaces, and first connects Mouthful 1 connects+5V voltage, and second interface 2 receives the level rotary speed instruction FAN_VSP_M of first interface output, and by level revolving speed Instruction FAN_VSP_M, which is exported, improves part to level rotary speed instruction, and third interface 3 receives the output of level speed feedback part Level speed feedback signal FAN_PG_M, and level speed feedback signal FAN_PG_M is exported to first interface, the 4th connects Mouth 4 is grounded GND.
As shown in figure 9, level rotary speed instruction conditioning part includes the 19th resistance R19, the 20th resistance R20, the 20th One resistance R21, the 22nd resistance R22, the 23rd resistance R23, the 4th triode Q4, the 4th photoelectrical coupler U4, the 7th Capacitor C7, the 8th capacitor C8 and the first zener diode ZD1；The electricity of a termination second interface output of 19th resistance R19 Flat rotary speed instruction FAN_VSP_M, the other end of the 19th resistance R19 and one end and the 4th triode of the 20th resistance R20 The base stage of Q4 connects, and the other end of the 20th resistance R20 and the emitter of the 4th triode Q4 are grounded GND, the 4th triode The collector of Q4 is connect with the cathode of the light emitting source (being in the present embodiment light emitting diode) of the 4th photoelectrical coupler U4, and the 4th The anode of the light emitting source of photoelectrical coupler U4 is connect with one end of the 21st resistance R21, the other end of the 21st resistance R21 Connect+5V voltage, the collector and the 20th of the light-receiving device (being in the present embodiment phototriode) of third photoelectrical coupler U3 One end of two resistance R22 connects, another termination A_+5V voltage of the 22nd resistance R22, the light of third photoelectrical coupler U3 One end of the emitter of device and the 23rd resistance R23, the 7th capacitor C7 (are in the present embodiment electrolysis electricity for the 7th capacitor C7 Hold) anode, the 8th capacitor C8 one end and the first zener diode ZD1 cathode connection, the 23rd resistance R23's is another One end, the cathode of the 7th capacitor C7, the other end of the 8th capacitor C8 and the first zener diode ZD1 plus earth A_GND, The common end output level turn of 23rd resistance R23, the 7th capacitor C7, the 8th capacitor C8 and the first zener diode ZD1 Speed instruction FAN_VSP.
In the present embodiment, when level rotary speed instruction FAN_VSP_M is high level, the 4th triode Q4 conducting, the 4th The electric signal that photoelectrical coupler U4 is exported charges to the 7th capacitor C7, the 8th capacitor C8, and level rotary speed instruction FAN_VSP is high electricity It is flat；When level rotary speed instruction FAN_VSP_M is low level, the 4th triode Q4 cut-off, the 4th photoelectrical coupler U4 can not be defeated Electric signal out, the 7th capacitor C7, the 8th capacitor C8 electric discharge, level rotary speed instruction FAN_VSP are low level.
As shown in figure 9, level speed feedback part includes the 9th capacitor C9, the tenth capacitor C10, the 11st capacitor C11, the 24 resistance R24, the 25th resistance R25, the 26th resistance R26 and the 5th photoelectrical coupler U5；11st capacitor The cathode of the light emitting source (being in the present embodiment light emitting diode) of one end of C11 and the 5th photoelectrical coupler U5 receives direct current The other end and the 5th photoelectricity of level the speed feedback signal FAN_PG, the 11st capacitor C11 of rotation speed of fan controller MCU output The connection of one end of the anode of the light emitting source of coupler U5 and the 26th resistance R26, another termination of the 26th resistance R26 A_+5V voltage, the collector and the 20th of the light-receiving device (being in the present embodiment phototriode) of the 5th photoelectrical coupler U5 One end of one end of five resistance R25, one end of the 24th resistance R24 and the tenth capacitor C10 connects, the 25th resistance Another termination+5V voltage of R25, the other end of the 24th resistance R24 are connect with one end of the 9th capacitor C9, the 5th photoelectricity coupling The other end of the emitter of the light-receiving device of clutch U5, the other end of the tenth capacitor C10 and the 9th capacitor C9 is grounded GND, and second The common end output level speed feedback signal FAN_PG_M of 14 resistance R24 and the 9th capacitor C9.
In the present embodiment, the anode of the light emitting source of the 4th photoelectrical coupler U4 and cathode are the 4th photoelectrical coupler U4's Two electric signal input ends；The collector of the light-receiving device of 4th photoelectrical coupler U4 is with transmitting extremely the 4th photoelectrical coupler U4's Two electrical signals；The anode and cathode of the light emitting source of 5th photoelectrical coupler U5 are two of the 5th photoelectrical coupler U5 Electric signal input end；The collector of the light-receiving device of 5th photoelectrical coupler U5 and transmitting extremely two of the 5th photoelectrical coupler U5 Electrical signal.
In the present embodiment, the second master control borad is different from the reference potential of DC fan controller, the 4th photoelectrical coupler U4 and the 5th photoelectrical coupler U5 is by the second master control borad and DC fan rotational speed governor MCU Phototube Coupling.
As shown in Figure 10, third master control borad includes the 3rd MCU and third interface.The communication rotary speed instruction of 3rd MCU is defeated Outlet is connect with the communication rotary speed instruction input terminal of third interface, is exported communication rotary speed instruction RXD and is given third interface；Third interface Communication rotary speed instruction output end with communication rotary speed instruction conditioning circuit communication rotary speed instruction input terminal connect, output communication turn Speed instruction RXD gives communication rotary speed instruction conditioning circuit；The communication speed feedback signal input terminal of third interface refers to revolving speed is communicated It enables the communication speed feedback signal output end of conditioning circuit connect, receives the communication revolving speed of communication rotary speed instruction conditioning circuit output Feedback signal TXD；The communication speed feedback signal input terminal of communication the speed feedback signal output end and the 3rd MCU of third interface Connection exports communication speed feedback signal TXD to the 3rd MCU.
As shown in figure 11, in the present embodiment, the chip model that the 3rd MCU is used is R5F104BC；The pin of 3rd MCU The pin 16 of 15 output communication rotary speed instruction RXD, the 3rd MCU receives the communication speed feedback letter of communication speed feedback part output Number TXD；Third interface is interface FAN_COMM_MFAN_VOT_M, and first interface 1 connects+5V voltage, and second interface 2 receives The level speed feedback signal TXD of speed feedback part output is communicated, and is exported to the pin 16 of the 3rd MCU, third interface 3 The output communication rotary speed instruction RXD of pin 15 of the 3rd MCU is received, and exports and improves part to communication rotary speed instruction, the 4th connects Mouth 4 is grounded GND.
As shown in figure 12, communication rotary speed instruction conditioning circuit include the 4th interface, communication rotary speed instruction conditioning part and Communicate speed feedback part；The communication rotary speed instruction input terminal of 4th interface and the communication rotary speed instruction output end of third interface connect It connects, receives the communication rotary speed instruction RXD of third interface output；The communication rotary speed instruction output end of 4th interface refers to revolving speed is communicated The communication rotary speed instruction input terminal connection for enabling conditioning part exports communication rotary speed instruction RXD and gives communication rotary speed instruction conditioning part； The communication rotary speed instruction of the communication rotary speed instruction output end and DC fan controller MCU that communicate rotary speed instruction conditioning part inputs End connection exports communication rotary speed instruction DRI_RXD_FROM_MAIN and gives DC fan controller MCU；Communicate speed feedback part Communication speed feedback signal input terminal connect with the communication speed feedback signal output end of DC fan controller MCU, receive The communication speed feedback signal DRI_TXD_T0_MAIN of DC fan controller MCU output；Communicate the communication of speed feedback part Speed feedback signal output end is connect with the communication speed feedback signal input terminal of the 4th interface, output communication speed feedback signal TXD gives the 4th interface；The communication speed feedback signal output end and the communication speed feedback signal of third interface of 4th interface are defeated Enter end connection, exports communication speed feedback signal TXD and give third interface.
As shown in figure 13, the 4th interface is interface FAN_COMM_A；Interface FAN_COMM_A include four interfaces, first Interface 1 connects+5V voltage, and second interface 2 receives the level speed feedback signal TXD of communication speed feedback part output, and will Level speed feedback signal TXD, which is exported, gives third interface, and third interface 3 receives the communication rotary speed instruction of third interface output RXD, and communication rotary speed instruction RXD is exported and gives communication rotary speed instruction conditioning part, the 4th interface 4 is grounded GND.
As shown in figure 13, communication rotary speed instruction conditioning part includes the 30th resistance R30, the 31st resistance R31, third 12 resistance R32, the 13rd capacitor C13 and the 7th photoelectrical coupler U7；The 4th interface of termination of 30th resistance R30 is defeated Communication rotary speed instruction RXD out, the other end of the 30th resistance R30 and the light emitting source of the 7th photoelectrical coupler U7 are (in this implementation Be light emitting diode in example) cathode connection, the anode of the light emitting source of the 7th photoelectrical coupler U7 connects+5V voltage, the 7th photoelectricity The collector of light-receiving device (being in the present embodiment phototriode) of coupler U7 and one end of the 31st resistance R31 and One end of 32nd resistance R32 connects, another termination A_+5V voltage of the 31st resistance R31, the 32nd resistance R32 The other end connect with one end of the 13rd capacitor C13, the emitter and the 13rd of the light-receiving device of the 7th photoelectrical coupler U7 The common end output of the other end ground connection A_GND, the 32nd resistance R32 and the 13rd capacitor C13 of capacitor C13 communicate revolving speed and refer to Enable DRI_RXD_FROM_MAIN.
As shown in figure 13, communication speed feedback part includes the 12nd capacitor C12, the 27th resistance R27, the 28th Resistance R28, the 29th resistance R29 and the 6th photoelectrical coupler U6；A termination DC fan of 29th resistance R29 turns The communication speed feedback signal DRI_TXD_TO_MAIN of fast controller MCU output, the hair of the other end and the 6th photoelectrical coupler U6 The cathode of light source (being in the present embodiment light emitting diode) connects, and the anode of the light emitting source of the 6th photoelectrical coupler U6 meets A_+ 5V voltage, the collector of the light-receiving device (being in the present embodiment phototriode) of the 6th photoelectrical coupler U6 and the 28th electricity One end of one end and the 27th resistance R27 for hindering R28 connects, another termination+5V voltage of the 28th resistance R28, the The other end of 27 resistance R27 is connect with one end of the 12nd capacitor C12, one end of the 12nd capacitor C12 and the 6th light The common end output of emitter the ground connection GND, the 27th resistance R27 and the 12nd capacitor C12 of the light-receiving device of electric coupler U6 Communicate speed feedback signal TXD.
In the present embodiment, the anode of the light emitting source of the 6th photoelectrical coupler U6 and cathode are the 6th photoelectrical coupler U6's Two electric signal input ends；The collector of the light-receiving device of 6th photoelectrical coupler U6 is with transmitting extremely the 6th photoelectrical coupler U6's Two electrical signals；The anode and cathode of the light emitting source of 7th photoelectrical coupler U7 are two of the 7th photoelectrical coupler U7 Electric signal input end；The collector of the light-receiving device of 7th photoelectrical coupler U7 and transmitting extremely two of the 7th photoelectrical coupler U7 Electrical signal.
In the present embodiment, third master control borad is different from the reference potential of DC fan controller, the 6th photoelectrical coupler U6 and the 7th photoelectrical coupler U7 is used for third master control borad and DC fan rotational speed governor MCU Phototube Coupling.
In the present embodiment, the second master control borad, third master control borad are from DC fan controller design in different circuit boards On；First interface for the second master control borad interface on circuit boards；Second interface and the 4th interface are DC fan controller Interface on circuit boards；Third interface for third master control borad interface on circuit boards.
As shown in figure 14, in the present embodiment, the chip model that DC fan rotational speed governor MCU is used for R5F104BC；The pin 12 of DC fan rotational speed governor MCU receives the high-grade revolving speed of high-grade rotary speed instruction conditioning circuit output FAN_H_DT is instructed, the pin 13 of DC fan rotational speed governor MCU receives the middle-grade of middle-grade rotary speed instruction conditioning circuit output Rotary speed instruction FAN_M_DT, the pin 14 of DC fan rotational speed governor MCU receive low-grade rotary speed instruction conditioning circuit output It is defeated that the pin 26 of low-grade rotary speed instruction FAN_L_DT, DC fan rotational speed governor MCU receive level rotary speed instruction conditioning part The 25 output level speed feedback signal FAN_ of pin of level rotary speed instruction FAN_VSP out, DC fan rotational speed governor MCU PG gives level speed feedback part, and it is defeated that the pin 15 of DC fan rotational speed governor MCU receives communication rotary speed instruction conditioning part The output communication revolving speed of pin 16 of communication rotary speed instruction DRI_RXD_FROM_MAIN out, DC fan rotational speed governor MCU are anti- Feedback signal DRI_TXD_TO_MAIN gives communication speed feedback part, and the pin 29 of DC fan rotational speed governor MCU receives direct current The pin 28 of the direct current sample rate current IU_AD of power of fan mould group IPM output, DC fan rotational speed governor MCU receive direct current The pin 27 of the direct current sample rate current IV_AD of current sampling circuit output, DC fan rotational speed governor MCU receive DC voltage The pin 3 of the direct current sampled voltage VDC_AD of sample circuit output, DC fan rotational speed governor MCU receive DC fan power The pin 7 of the fault detection signal FAN_IPM_FO of mould group IPM output, DC fan rotational speed governor MCU are grounded A_GND, directly The pin 8 of flow fan rotational speed governor MCU connects A_+5V voltage.
As shown in figure 15, DC fan power modules IPM includes DC fan power modules chip and peripheral circuit；Directly The chip model of flow fan power modules chip is IPM_SIM6812 (TOP)；Peripheral circuit includes the 33rd resistance R33, the 34 resistance R34s, the 35th resistance R35, the 36th resistance R36, the 37th resistance R37, the 38th resistance R38, the 39th resistance R39, the 40th resistance R40, the 41st resistance R41, the second zener diode ZD2, the 14th electricity Hold C14, the 15th capacitor C15, the 16th capacitor C16, the 17th capacitor C17, the 18th capacitor C18, the 19th capacitor C19, 20th capacitor C20, the 21st capacitor C21, the 22nd capacitor C22, the 23rd capacitor C23 and the 24th capacitor C24。
As shown in figure 15, the pin 13 of DC fan power modules chip is connect with one end of the 33rd resistance R33, the The pwm control signal FAN_PWM_UP of another termination DC fan controller MCU output of 33 resistance R33；DC fan The pin 14 of power modules chip is connect with one end of the 34th resistance R34, another termination direct current of the 34th resistance R34 The pwm control signal FAN_PWM_VP of controller of fan MCU output；The pin 15 and the 30th of DC fan power modules chip One end of five resistance R35 connects, and the PWM of another termination DC fan controller MCU output of the 35th resistance R35 controls letter Number FAN_PWM_WP；The pin 16 of DC fan power modules chip is connect with one end of the 36th resistance R36, and the 36th The pwm control signal FAN_PWM_UN of another termination DC fan controller MCU output of resistance R36；DC fan power mould The pin 17 of group chip is connect with one end of the 37th resistance R37, another termination DC fan control of the 37th resistance R37 The pwm control signal FAN_PWM_VN of device MCU output processed；The pin 18 and the 38th resistance of DC fan power modules chip One end of R38 connects, the pwm control signal FAN_ of another termination DC fan controller MCU output of the 38th resistance R38 PWM_WN；The pin 31 of DC fan power modules chip is connect with pin 21, exports three phase control signal FAN_U；Direct current wind The pin 26 of machine power modules chip is connect with pin 35, exports three phase control signal FAN_V；DC fan power modules chip Pin 24 connect with pin 37, export three phase control signal FAN_W；Three phase controls of DC fan power modules IPM output Signal controls DC fan MOTOR rotation.
As shown in figure 15, the cathode of the pin 5 of DC fan power modules chip and the second zener diode ZD2, the tenth One end connection of the anode and the 15th capacitor C15 of four capacitor C14 (being in the present embodiment electrolytic capacitor), DC fan function The pin 17 of rate module chip connects A_+5V voltage and connect with one end of the 16th capacitor C16, the second zener diode ZD2's The pin 6, straight of anode, the cathode of the 14th capacitor C14, the other end of the 15th capacitor C15, DC fan power modules chip The pin 16 of flow fan power modules chip and the other end of the 16th capacitor C16 are grounded A_GND；DC fan power modules The pin 23 of chip is connect with one end of one end of the 18th capacitor C18 and the 19th capacitor C19, the 18th capacitor C18's The other end of the other end and the 19th capacitor C19 are connect with pin 24, the pin 37 of DC fan power modules chip；Direct current The pin 20 of power of fan module chip is connect with one end of one end of the 20th capacitor C20 and the 21st capacitor C21, the The pin 19 of the other end of 20 capacitor C20 and the other end of the 21st capacitor C21 and DC fan power modules chip Connection；The pin 30 of DC fan power modules chip and one end of the 22nd capacitor C22 and the 23rd capacitor C23's One end connection, the other end of the 22nd capacitor C22 and the other end of the 23rd capacitor C23 and DC fan power modules Pin 21, the pin 31 of chip connect；The pin 1 of DC fan power modules chip and one end of the 41st resistance R41 connect It connects, the other end ground connection of the 41st resistance R41；The pin 28 of DC fan power modules chip connect DC bus-bar voltage and with One end of 24th capacitor C24 connects, and the other end of the 24th capacitor C24 is grounded A_GND.
As shown in figure 15, one end and the 4th of the pin 4 of DC fan power modules chip and the 39th resistance R39 Ten one end resistance R40 connection, another termination A_+5V voltage of the 39th resistance R39, the other end of the 40th resistance R40 with One end of 17th capacitor C17 connects, and the other end of the 17th capacitor C17 is grounded A_GND, the 40th resistance R40 and the 17th The common end of capacitor C17 exports fault detection signal FAN_IPM_FO.
As shown in figure 15, DC voltage sample circuit includes the 42nd resistance R42, the 43rd resistance R43, the 20th Five capacitor C25；A termination DC bus-bar voltage DC_P of 42nd resistance R42, the other end of the 42nd resistance R42 and the One end of 43 resistance R43 and the connection of one end of the 25th capacitor C25, the other end of the 43rd resistance R43 and The common end output of the other end ground connection A_GND, the 42nd resistance R42 and the 43rd resistance R43 of 25th capacitor C25 Direct current sampled voltage VDC_AD.
In the present embodiment, DC voltage sample circuit is using series resistance partial pressure acquisition DC bus-bar voltage DC_P；Root According to electric resistance partial pressure principle, direct current sampled voltage VDC_AD=DC_P*R42/ (R42+R43), therefore DC_P=VDC_AD* (R42+ R43)/R42, DC fan controller MCU can calculate DC bus-bar voltage DC_P according to direct current sampled voltage VDC_AD.
In the present embodiment, DC current sample circuit includes U phase sampling resistor RU, V phase sampling resistor RV, voltage detecting Module (not shown) and data processing module (not shown)；U phase sampling resistor RUOne end and DC fan power modules core The pin 11 of piece connects, U phase sampling resistor RUThe other end connect with the pin 1 of DC fan power modules chip；V phase samples Resistance RVOne end connect with the pin 1 of DC fan power modules chip, V phase sampling resistor RVThe other end and DC fan The pin 1 of power modules chip connects.
In the present embodiment, voltage detection module measures U phase sampling resistor RUThe voltage U at both endsRUAnd V phase sampling resistor RVThe voltage U at both endsRV, and by voltage URUAnd voltage URVIt exports to data processing module；Data processing module is fixed according to ohm Reason, which calculates, flows through U phase sampling resistor RUThe electric current (i.e. the electric current of the output of pin 11 of DC fan power modules chip) at both ends IU_AD=URV/RU, flow through V phase sampling resistor RV(i.e. the pin 1 of DC fan power modules chip exports the electric current at both ends Electric current) IV_AD=URV/RV；Data processing module by direct current sample rate current IU_AD and direct current sample rate current IV_AD export to DC fan rotational speed governor MCU.
In the present embodiment ,+5V voltage ,+15V are opposite first master control borad (or the second master control borad or third master control borads) The voltage of reference potential, GND are the references of the reference potential of opposite first master control borad (or the second master control borad or third master control borad) Ground；A_+5V voltage, A_+15V are the voltage of the reference potential of opposite DC fan rotational speed governor MCU, and A_GND is relatively straight The reference ground of the reference potential of flow fan rotational speed governor MCU.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to Embodiment is stated, technical solution belonging to the idea of the present invention belongs to the protection scope of the utility model.It should be pointed out that For those skilled in the art, several improvement without departing from the principle of the utility model and profit Decorations, these improvements and modifications also should be regarded as the protection scope of the utility model.

Claims (14)

1. a kind of multifunctional DC rotation speed of fan controller, it is characterised in that: turn including gear rotary speed instruction conditioning circuit, level Speed instruction conditioning circuit, communication rotary speed instruction conditioning circuit and DC fan rotational speed governor MCU；The gear rotary speed instruction The gear rotary speed instruction input terminal of conditioning circuit receives gear rotary speed instruction；The gear of the gear rotary speed instruction conditioning circuit turns Fast instruction output end is connect with the gear rotary speed instruction input terminal of DC fan rotational speed governor MCU, exports gear rotary speed instruction Give DC fan rotational speed governor MCU；The level rotary speed instruction input terminal of the level rotary speed instruction conditioning circuit receives level Rotary speed instruction FAN_VSP_M；The level rotary speed instruction output end and DC fan revolving speed of the level rotary speed instruction conditioning circuit The level rotary speed instruction input terminal of controller MCU connects, and output level rotary speed instruction FAN_VSP gives DC fan rotational speed governor MCU；The communication rotary speed instruction input terminal of the communication rotary speed instruction conditioning circuit receives communication rotary speed instruction RXD；The communication The communication rotary speed instruction output end of rotary speed instruction conditioning circuit and the communication rotary speed instruction of DC fan rotational speed governor MCU input End connection exports communication rotary speed instruction DRI_RXD_FROM_MAIN and gives DC fan rotational speed governor MCU.
2. multifunctional DC rotation speed of fan controller according to claim 1, it is characterised in that: the gear rotary speed instruction Including high gear rotary speed instruction H1, middle gear rotary speed instruction M1 and low gear rotary speed instruction L1；The gear rotary speed instruction conditioning circuit Including high gear rotary speed instruction conditioning circuit, middle gear rotary speed instruction conditioning circuit and low gear rotary speed instruction conditioning circuit；The height The high gear rotary speed instruction input terminal for keeping off rotary speed instruction conditioning circuit receives high gear rotary speed instruction H1；The high gear rotary speed instruction conditioning The high gear rotary speed instruction output end of circuit is connect with the high gear rotary speed instruction input terminal of DC fan rotational speed governor MCU, output High gear rotary speed instruction FAN_H_DT gives DC fan rotational speed governor MCU；
The middle gear rotary speed instruction input terminal of the middle gear rotary speed instruction conditioning circuit keeps off rotary speed instruction M1 in receiving；The middle gear turns The middle gear rotary speed instruction output end of speed instruction conditioning circuit and the middle gear rotary speed instruction input terminal of DC fan rotational speed governor MCU Connection, export in gear rotary speed instruction FAN_M_DT give DC fan rotational speed governor MCU；The low gear rotary speed instruction conditioning circuit Low gear rotary speed instruction input terminal receive low gear rotary speed instruction L1；The low gear rotary speed instruction of the low gear rotary speed instruction conditioning circuit Output end is connect with the low gear rotary speed instruction input terminal of DC fan rotational speed governor MCU, exports low gear rotary speed instruction FAN_L_ DT gives DC fan rotational speed governor MCU.
3. multifunctional DC rotation speed of fan controller according to claim 2, it is characterised in that: the high gear rotary speed instruction H1 is analog signal, and the high gear rotary speed instruction FAN_H_DT is digital signal, and the high gear rotary speed instruction conditioning circuit is used for Convert analog signals into digital signal；The middle gear rotary speed instruction M1 is analog signal, the middle gear rotary speed instruction FAN_M_ DT is digital signal, and the middle gear rotary speed instruction conditioning circuit is for converting analog signals into digital signal；The low gear turns Speed instruction L1 is analog signal, and the low gear rotary speed instruction FAN_L_DT is digital signal, the low gear rotary speed instruction conditioning electricity Road is for converting analog signals into digital signal.
4. multifunctional DC rotation speed of fan controller according to claim 3, it is characterised in that: the high gear rotary speed instruction Conditioning circuit include the 4th diode, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, first capacitor, Second capacitor and the first photoelectrical coupler；The anode of 4th diode connects high gear rotary speed instruction H1, the cathode of the 4th diode Connect with one end of the 4th resistance, the other end of the 4th resistance is connect with one end of the 5th resistance, the other end of the 5th resistance with And the 6th resistance one end and one end of first capacitor connect, the other end of the 6th resistance and another termination zero of first capacitor Two electric signal input ends of line, the first photoelectrical coupler are in parallel with first capacitor, an electric signal of the first photoelectrical coupler Output end is connect with one end of one end of the 7th resistance and the 8th resistance, another termination A_+5V voltage of the 7th resistance, the 8th electricity The other end of resistance is connect with one end of the second capacitor, another electric signal of the other end of the second capacitor and the first photoelectrical coupler Output end is grounded A_GND；The common end of 8th resistance and the second capacitor exports high gear rotary speed instruction FAN_H_DT；
The middle gear rotary speed instruction conditioning circuit includes the 5th diode, the 9th resistance, the tenth resistance, eleventh resistor, the tenth Two resistance, thirteenth resistor, third capacitor, the 4th capacitor and the second photoelectrical coupler；The anode of 5th diode connects middle gear Rotary speed instruction M1, the cathode of the 5th diode are connect with one end of the 9th resistance, the other end of the 9th resistance and the tenth resistance One end connection, the other end of the tenth resistance and one end of eleventh resistor and one end of third capacitor connect, eleventh resistor The other end and third capacitor another terminal connecting zero line AC_N, two electric signal input ends and third of the second photoelectrical coupler Capacitor is in parallel, one end of an electrical signal of the second photoelectrical coupler and one end of twelfth resistor and thirteenth resistor Connection, another termination A_5V voltage of twelfth resistor, the other end of thirteenth resistor are connect with one end of the 4th capacitor, and the 4th Another electrical signal of the other end of capacitor and the second photoelectrical coupler is grounded A_GND；Thirteenth resistor and the 4th electricity Rotary speed instruction FAN_M_DT is kept off in the common end output of appearance；
The low gear rotary speed instruction conditioning circuit include the 6th diode, the 14th resistance, the 15th resistance, the 16th resistance, 17th resistance, the 18th resistance, the 5th capacitor, the 6th capacitor and third photoelectrical coupler；The anode of 6th diode connects Low gear rotary speed instruction L1, the cathode of the 6th diode are connect with one end of the 14th resistance, the other end of the 14th resistance and One end of 15 resistance connects, and the other end of the 15th resistance and one end of the 16th resistance and one end of the 5th capacitor connect It connects, the other end of the 16th resistance and another terminal connecting zero line AC_N of the 5th capacitor, two telecommunications of third photoelectrical coupler Number input terminal is in parallel with the both ends of the 5th capacitor, and the one of an electrical signal of third photoelectrical coupler and the 17th resistance End is connected with one end of the 18th resistance, another termination A_+5V voltage of the 17th resistance, the other end of the 18th resistance and the One end of six capacitors connects, and the other end of the 6th capacitor and another electrical signal of third photoelectrical coupler are grounded A_ GND；The common end of 18th resistance and the 6th capacitor exports low gear rotary speed instruction FAN_L_DT.
5. multifunctional DC rotation speed of fan controller according to claim 1, it is characterised in that: the level rotary speed instruction Conditioning circuit includes level rotary speed instruction conditioning part；The level rotary speed instruction input terminal of level rotary speed instruction conditioning part Receive level rotary speed instruction FAN_VSP_M；The level rotary speed instruction output end and direct current of level rotary speed instruction conditioning part The level rotary speed instruction input terminal of rotation speed of fan controller MCU connects, and output level rotary speed instruction FAN_VSP turns to DC fan Fast controller MCU；Level rotary speed instruction conditioning part includes the 19th resistance, the 20th resistance, the 21st resistance, the 22 resistance, the 23rd resistance, the 4th triode, the 4th photoelectrical coupler, the 7th capacitor, the 8th capacitor and first are steady Press diode；
One termination level rotary speed instruction FAN_VSP_M of the 19th resistance, the other end of the 19th resistance and the 20th resistance The connection of the base stage of one end and the 4th triode, the other end of the 20th resistance and the emitter of the 4th triode are grounded GND, The collector of 4th triode is connect with an electric signal input end of the 4th photoelectrical coupler, the 4th photoelectrical coupler it is another A electric signal input end is connect with one end of the 21st resistance, another termination+5V voltage of the 21st resistance, third photoelectricity One electrical signal of coupler is connect with one end of the 22nd resistance, another termination A_+5V of the 22nd resistance One end of voltage, another electrical signal of third photoelectrical coupler and the 23rd resistance, one end of the 7th capacitor, The connection of the cathode of one end of eight capacitors and the first zener diode, the other end of the 23rd resistance, the 7th capacitor it is another End, the other end of the 8th capacitor and the first zener diode plus earth A_GND, the 23rd resistance, the 7th capacitor, the The common end output level rotary speed instruction FAN_VSP of eight capacitors and the first zener diode.
6. multifunctional DC rotation speed of fan controller according to claim 5, it is characterised in that: the level rotary speed instruction Conditioning circuit further includes level speed feedback part；The level speed feedback signal input terminal of level speed feedback part with The level speed feedback signal output end of DC fan controller MCU connects, and receives the level of DC fan controller MCU output Speed feedback signal FAN_PG；The level speed feedback signal output end of level speed feedback part, output level revolving speed Feedback signal FAN_PG_M；The level speed feedback signal FAN_PG and level speed feedback signal FAN_PG_M is for feeding back The actual speed of direct current generator.
7. multifunctional DC rotation speed of fan controller according to claim 6, it is characterised in that: the level speed feedback Part include the 9th capacitor, the tenth capacitor, the 11st capacitor, the 24th resistance, the 25th resistance, the 26th resistance with And the 5th photoelectrical coupler；One end of 11st capacitor and an electric signal input end of the 5th photoelectrical coupler receive level Speed feedback signal FAN_PG, the other end of the 11st capacitor and another electric signal input end of the 5th photoelectrical coupler and One end of 26th resistance connects, another termination A_+5V voltage of the 26th resistance, an electricity of the 5th photoelectrical coupler Signal output end is connect with one end of the 25th resistance, one end of the 24th resistance and one end of the tenth capacitor, and second Another termination+5V voltage of 15 resistance, the other end of the 24th resistance are connect with one end of the 9th capacitor, the 5th photoelectricity coupling The other end of another electrical signal of clutch, the other end of the tenth capacitor and the 9th capacitor is grounded GND, and the 24th The common end output level speed feedback signal FAN_PG_M of resistance and the 9th capacitor.
8. multifunctional DC rotation speed of fan controller according to claim 1, it is characterised in that: the communication rotary speed instruction Conditioning circuit includes that communication rotary speed instruction improves part；The communication rotary speed instruction input terminal of the communication rotary speed instruction conditioning part Receive communication rotary speed instruction RXD；The communication rotary speed instruction output end and DC fan of the communication rotary speed instruction conditioning part turn The communication rotary speed instruction input terminal of fast controller MCU connects, and exports communication rotary speed instruction DRI_RXD_FROM_MAIN and gives direct current wind Machine rotational speed governor MCU；Communication rotary speed instruction conditioning part includes the 30th resistance, the 31st resistance, the 32nd Resistance, the 13rd capacitor and the 7th photoelectrical coupler；
Letter rotary speed instruction RXD is connected in one end of 30th resistance, and the one of the other end of the 30th resistance and the 7th photoelectrical coupler A electric signal input end connection, another electric signal input end of the 7th photoelectrical coupler connect+5V voltage, the 7th photoelectrical coupler An electrical signal connect with one end of one end of the 31st resistance and the 32nd resistance, the 31st resistance Another termination A_+5V voltage, the other end of the 32nd resistance connect with one end of the 13rd capacitor, the 7th photoelectrical coupler Another electrical signal and the other end of the 13rd capacitor be grounded A_GND, the 32nd resistance and the 13rd capacitor Common end output communication rotary speed instruction DRI_RXD_FROM_MAIN.
9. multifunctional DC rotation speed of fan controller according to claim 8, it is characterised in that: the communication rotary speed instruction Conditioning circuit further includes communication speed feedback part；It is described communication speed feedback part communication speed feedback signal input terminal with The communication speed feedback signal output end of DC fan controller MCU connects, and receives the communication of DC fan controller MCU output Speed feedback signal DRI_TXD_T0_MAIN；The communication speed feedback signal output end output of the communication speed feedback part Communicate speed feedback signal TXD；The communication speed feedback signal DRI_TXD_T0_MAIN with communicate speed feedback signal TXD For feeding back the actual speed of direct current generator.
10. multifunctional DC rotation speed of fan controller according to claim 9, it is characterised in that: the communication revolving speed is anti- Feedback part includes the 12nd capacitor, the 27th resistance, the 28th resistance, the 29th resistance and the 6th photoelectric coupling Device；The communication speed feedback signal DRI_TXD_T0_ of one termination DC fan rotational speed governor MCU output of the 29th resistance MAIN, the other end are connect with an electric signal input end of the 6th photoelectrical coupler, another telecommunications of the 6th photoelectrical coupler Number input termination A_+5V voltage, an electrical signal of the 6th photoelectrical coupler and one end of the 28th resistance and One end of 27th resistance connects, another termination+5V voltage of the 28th resistance, the other end of the 27th resistance and the One end of 12 capacitors connects, one end of the 12nd capacitor and another electrical signal ground connection of the 6th photoelectrical coupler GND, the 27th resistance communicate speed feedback signal TXD with the output of the common end of the 12nd capacitor.
11. a kind of multifunctional DC rotation speed of fan control system, it is characterised in that: including the first master control borad, the second master control borad, Multifunctional DC rotation speed of fan controller described in three master control borads and claim 1-10 any one；First master control borad Gear rotary speed instruction output end connect with the gear rotary speed instruction input terminal of the gear rotary speed instruction conditioning circuit, output gear Position rotary speed instruction gives gear rotary speed instruction conditioning circuit；The level rotary speed instruction output end and the level of second master control borad The level rotary speed instruction conditioning circuit input terminal of rotary speed instruction conditioning circuit connects, and output level rotary speed instruction FAN_VSP_M gives Level rotary speed instruction conditioning circuit；The communication rotary speed instruction output end of the third master control borad communicates rotary speed instruction conditioning with described The communication rotary speed instruction input terminal of circuit connects, and exports communication rotary speed instruction RXD and gives communication rotary speed instruction conditioning circuit.
12. a kind of multifunctional DC rotation speed of fan control system, it is characterised in that: including the first master control borad, the second master control borad, Multifunctional DC rotation speed of fan controller described in three master control borads and claim 3 or 4 any one；First master control borad High gear rotary speed instruction output end connect with the high gear rotary speed instruction input terminal of the gear rotary speed instruction conditioning circuit, output is high Gear rotary speed instruction H1 give gear rotary speed instruction conditioning circuit；The middle gear rotary speed instruction output end and the gear of first master control borad Position rotary speed instruction conditioning circuit middle gear rotary speed instruction input terminal connection, export in gear rotary speed instruction M1 give gear rotary speed instruction tune Manage circuit；The low gear revolving speed of the low gear rotary speed instruction output end of first master control borad and the gear rotary speed instruction conditioning circuit Command input connection, exports low gear rotary speed instruction L1 and gives gear rotary speed instruction conditioning circuit；The level of second master control borad Rotary speed instruction output end is connect with the level rotary speed instruction conditioning circuit input terminal of the level rotary speed instruction conditioning circuit, output Level rotary speed instruction FAN_VSP_M gives level rotary speed instruction conditioning circuit；The communication rotary speed instruction of the third master control borad exports It holds and is connect with the communication rotary speed instruction input terminal of the communication rotary speed instruction conditioning circuit, export communication rotary speed instruction RXD to logical Believe rotary speed instruction conditioning circuit.
13. a kind of multifunctional DC rotation speed of fan control system, it is characterised in that: including the first master control borad, the second master control borad, Multifunctional DC rotation speed of fan controller described in three master control borads and claim 6 or 7 any one；First master control borad Gear rotary speed instruction output end connect with the gear rotary speed instruction input terminal of the gear rotary speed instruction conditioning circuit, output gear Position rotary speed instruction gives gear rotary speed instruction conditioning circuit；The level rotary speed instruction output end and the level of second master control borad Rotary speed instruction improves the level rotary speed instruction conditioning circuit input terminal connection of part, and output level rotary speed instruction FAN_VSP_M gives Level rotary speed instruction improves part；The level speed feedback signal output end of level speed feedback part and second master The level speed feedback signal input terminal connection of plate is controlled, output level speed feedback signal gives the second master control borad；The third master The communication rotary speed instruction output end for controlling plate is connect with the communication rotary speed instruction input terminal of the communication rotary speed instruction conditioning circuit, defeated Communication rotary speed instruction RXD gives communication rotary speed instruction conditioning circuit out.
14. a kind of multifunctional DC rotation speed of fan control system, it is characterised in that: including the first master control borad, the second master control borad, Multifunctional DC rotation speed of fan controller described in three master control borads and claim 9 or 10 any one；First master control The gear rotary speed instruction output end of plate is connect with the gear rotary speed instruction input terminal of the gear rotary speed instruction conditioning circuit, output Gear rotary speed instruction gives gear rotary speed instruction conditioning circuit；The level rotary speed instruction output end and the electricity of second master control borad The level rotary speed instruction conditioning circuit input terminal of flat rotary speed instruction conditioning circuit connects, output level rotary speed instruction FAN_VSP_M Give level rotary speed instruction conditioning circuit；The communication rotary speed instruction output end of the third master control borad communicates rotary speed instruction tune with described The communication rotary speed instruction input terminal connection for managing part exports communication rotary speed instruction RXD and gives communication rotary speed instruction conditioning part；It is described Communication speed feedback signal output end and the communication speed feedback signal of the third master control borad for communicating speed feedback part are defeated Enter end connection, exports communication speed feedback signal TXD and give third master control borad.
CN201821716554.1U 2018-10-22 2018-10-22 A kind of multifunctional DC rotation speed of fan controller and control system Active CN209129912U (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111912085A (en) * 2020-05-22 2020-11-10 海信（山东）空调有限公司 Drive circuit and air conditioner
CN113640664A (en) * 2021-07-29 2021-11-12 湖州越球电机有限公司 BLDC motor soft start test system with DC voltage input

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111912085A (en) * 2020-05-22 2020-11-10 海信（山东）空调有限公司 Drive circuit and air conditioner
CN111912085B (en) * 2020-05-22 2023-10-27 海信空调有限公司 Driving circuit and air conditioner
CN113640664A (en) * 2021-07-29 2021-11-12 湖州越球电机有限公司 BLDC motor soft start test system with DC voltage input
CN113640664B (en) * 2021-07-29 2024-04-02 湖州越球电机有限公司 BLDC motor soft start test system with direct-current voltage input

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