CN208433911U - Multi-output power supply manages circuit - Google Patents
Multi-output power supply manages circuit Download PDFInfo
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- CN208433911U CN208433911U CN201820639313.5U CN201820639313U CN208433911U CN 208433911 U CN208433911 U CN 208433911U CN 201820639313 U CN201820639313 U CN 201820639313U CN 208433911 U CN208433911 U CN 208433911U
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Abstract
A kind of multi-output power supply management circuit, with host computer communication connection, the host computer presses loading demand out-put supply control instruction, and the multi-output power supply management circuit includes: the power input interface for accessing power supply signal；It is multiple to be connect respectively with the power input interface, it is configured as the voltage conversion circuit of electric current and the conversion of/voltage；It is connect with the host computer, and there are multiple enabled pins connecting respectively with multiple voltage conversion circuits, it is configured as that enable signal is answered to make the corresponding voltage conversion circuit work to export the controller of required electric signal according to the power supply control instruction output phase；It is connected between the power input interface and the power pins of the controller, to the power module that the controller is powered, solves the problems, such as that system complex present in traditional electric power management circuit, at high cost and occupied space are big.
Description
Technical field
The utility model belongs to power technique fields more particularly to a kind of multi-output power supply management circuit.
Background technique
It is increasingly extensive now with application of the mobile robot in people's daily life and industrial production.Increasingly
The module of more different function is integrated into robot, this also requires that the power-supply system of mobile robot can be simultaneously difference
Module provides corresponding voltage and current, and in addition the signal processing circuit in robot also becomes increasingly complex, various hardware circuits
Requirement to power supply is also higher and higher, and the power circuit output voltage grade of current most robot is all relatively simple, makes
A power supply output module must be just further added by by obtaining one functional module of every increase, or not because of the reserved output power of power supply
It is enough, it is necessary to additionally increase other power circuits again, this not only increases additional cost, it needs additionally to increase new space, point
Scattered power module, robot system can not control in time, and power consumption is bigger, shorten the service life of battery, often lead to power supply
Stability is not high, to system introduce interference than more serious.
If using a large power supply by the total power of calculating robot, then pass through fuse holder branch
Protection, total current are equal to the summation of each branch current；This total method seems feasible, but disadvantage is relatively more, single loop load
Overcurrent, it will blown out, the replacement of fuse needs artificial intervention.Increase cost of labor, and in the present of automation
It, the customer experience of such method is not good enough, feels very low side.High power D C-DC power module internal protection current control, ginseng
The difficult debugging of number, or protection are not sufficiently stable, and are easy to produce output terminal shortcircuit, and power module just and then damages, and power supply is defeated at this time
The high voltage for entering end will directly be poured into output end.It causes multiple power loads while damaging.If using the DC-DC with isolation instead
Power module, cost is very high, and product competition advantage weakens.
High power D C-DC power module, because power is big, equivalent internal resistance is just very small, and ripple is difficult to control.In order to
It is often at high cost to reduce ripple, in addition because power is big, is often filtered with bulky capacitor, switching on and shutting down power surges electric current is also very high.
Big dash current tends to allow protection element air switch, and breaker waits component ageings or failure.
Utility model content
The utility model provides a kind of multi-output power supply management circuit, it is intended to solve to exist in traditional electric power management circuit
System complex, problem at high cost and big occupied space.
A kind of multi-output power supply management circuit, with host computer communication connection, the host computer presses loading demand out-put supply
Control instruction, the multi-output power supply management circuit include:
Access the power input interface of power supply signal；
It is multiple to be connect respectively with the power input interface, it is configured as the voltage conversion circuit of electric current and the conversion of/voltage；
It is connect with the host computer, and there are multiple enabled pins connecting respectively with multiple voltage conversion circuits,
It is configured as that enable signal is answered to make the corresponding voltage conversion circuit work with defeated according to the power supply control instruction output phase
The controller of required electric signal out；
It is connected between the power input interface and the power pins of the controller, the electricity powered to the controller
Source module；
It is connected between the power input interface and the voltage sense pin of the controller, is configured to detect the electricity
The voltage detection module of the input voltage size of source input interface；And
It is connected between the power input interface and the current detecting pin of the controller, is configured to detect each institute
State the current detection module of the output size of current of voltage conversion circuit.
In a wherein embodiment, multiple voltage conversion circuits include first voltage translation circuit, the second electricity
Press translation circuit and tertiary voltage translation circuit；
The first voltage translation circuit is identical with the output voltage of the second voltage translation circuit, exports electric current not phase
Together；
The output voltage of the tertiary voltage translation circuit is greater than the output voltage of the second voltage translation circuit, described
The output electric current of tertiary voltage translation circuit is greater than the output electric current of the second voltage translation circuit.
In a wherein embodiment, one of them described voltage conversion circuit includes the first input capacitance, the first drive
Dynamic chip, first diode, the first inductance and the first output capacitance, in which:
The input of the first end of first input capacitance and first driving chip terminates the power input interface,
The second end of first input capacitance is grounded, and the first of the enabled termination controller of first driving chip is enabled to be drawn
The switching node of first termination first driving chip of foot, the cathode of the first diode and first inductance draws
Foot, the plus earth of the first diode, output end of the second end of first inductance as the voltage conversion circuit, and
It is grounded by first output capacitance.
In a wherein embodiment, first driving chip is TPS54560.
In a wherein embodiment, one of them described voltage conversion circuit is opened including the second input capacitance, first
Guan Guan, the second driving chip, the second diode, the second inductance and the second output capacitance, in which:
The first end of second input capacitance, the input terminal of the first switch tube and second driving chip it is defeated
Enter to terminate the power input interface, the second end ground connection of second input capacitance, the enable end of second driving chip
The second enabled pin of the controller is connect, the gate pole of second driving chip meets the control terminal of the first switch tube, institute
State the first termination second driving of the output end of first switch tube, the cathode of second diode and second inductance
The second end of the switching node pin of chip, the plus earth of second diode, second inductance becomes as the voltage
The output end of circuit is changed, and is grounded by second output capacitance.
In a wherein embodiment, second driving chip is LM5088.
In a wherein embodiment, one of them described voltage conversion circuit includes third input capacitance, second opens
Guan Guan, third switching tube, the 4th switching tube, the 5th switching tube, third driving chip, third inductance and third output capacitance
The first end of the third input capacitance, the input terminal of the second switch and the third driving chip it is defeated
Enter to terminate the power input interface, the second end ground connection of the third input capacitance, the enable end of the third driving chip
The third for connecing the controller enables pin, the output end of the second switch, the first end of the third inductance and described
The input terminal of third switching tube is connect with the first switching node pin of the third driving chip, the control of the second switch
The first flash that system terminates the third driving chip drives pin, and the control of the third switching tube terminates the third driving
The low side of the first of chip drives pin；The output end of the output end of the third switching tube and the 4th switching tube is connected to institute altogether
The current sample pin of third driving chip is stated, and is grounded by a sampling resistor, the control of the 4th switching tube terminates institute
State the second low side drive pin of third driving chip, the control of the 5th switching tube terminates the of the third driving chip
Two high sides drive pin, the input terminal of the 4th switching tube, the second end of the third inductance and the 5th switching tube
Output end is connected to the second switching node pin of the third driving chip altogether, and the input terminal of the 5th switching tube is as the electricity
The output end of translation circuit is pressed, and is grounded by the third output capacitance.
In a wherein embodiment, the third driving chip is LM5176PWPR.
In a wherein embodiment, the current detection module includes that first resistor, second resistance, the first operation are put
Big device, 3rd resistor, the 4th resistance, the 5th resistance, first capacitor, the 6th resistance, the 7th resistance, first comparator and the 8th electricity
Resistance, in which:
The first termination power input interface of the first resistor, the second termination described first of the first resistor
The normal phase input end of operational amplifier, and be grounded by second resistance；The inverting input terminal of first operational amplifier passes through
The 3rd resistor ground connection, the output end of first operational amplifier connect its anti-phase input by the 4th resistance
End, also connects the normal phase input end of the first comparator by the 5th resistance；The normal phase input end of the first comparator
It is also grounded by the first capacitor, the inverting input terminal of the first comparator connects power supply by the 6th resistance, also logical
The 7th resistance eutral grounding is crossed, the output end of the first comparator is examined by the electric current that the 8th resistance connects the controller
Survey pin.
In a wherein embodiment, the controller is single-chip microcontroller, the single-chip microcontroller by CAN bus and/or
RS485 bus and the host computer communicate.
Demand of the above-mentioned multi-output power supply management circuit according to different loads to voltage, provided with multiple and different voltage
Output interface, and each output interface can provide high current, meet demand of the different circuit modules to voltage, electric current.
External junction block is reduced, reduces the cost and installation space of system, and analog power and other circuits are effectively isolated, and are dropped
The interference that low power circuit introduces system improves the stability and reliability of electrical equipment.Electric current is exported by detection, it is each
The short circuit of any one of power load or multiple short circuits, corresponding voltage conversion circuit (DC-DC) automatic protection are cut off defeated
Electric current out, after troubleshooting, output electric current normally provides again, removes traditional manpower intervention for needing replacing fuse from.
Because each load electricity consumption is individually to control, after host computer can wait stabilized input voltages, then electricity consumption is opened one by one
Load, thus the heavy current impact for avoiding powered on moment from generating.
Detailed description of the invention
Fig. 1 is multi-output power supply management circuit structure schematic diagram provided by the embodiment of the utility model；
Fig. 2 is the exemplary circuit schematic diagram that multi-output power supply shown in FIG. 1 manages controller in circuit；
Fig. 3 is the exemplary circuit schematic diagram that multi-output power supply shown in FIG. 1 manages first voltage translation circuit in circuit；
Fig. 4 is the exemplary circuit schematic diagram that multi-output power supply shown in FIG. 1 manages second voltage translation circuit in circuit；
Fig. 5 is the exemplary circuit schematic diagram that multi-output power supply shown in FIG. 1 manages tertiary voltage translation circuit in circuit；
Fig. 6 is the exemplary circuit schematic diagram that multi-output power supply shown in FIG. 1 manages current detection module in circuit；
Fig. 7 is the exemplary circuit schematic diagram that multi-output power supply shown in FIG. 1 manages CAN bus in circuit；
Fig. 8 is the exemplary circuit schematic diagram that multi-output power supply shown in FIG. 1 manages RS485 serial ports in circuit.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Referring to Fig. 1, multi-output power supply management circuit and 100 communication connection of host computer in the utility model embodiment,
The host computer 100 presses loading demand out-put supply control instruction, and the multi-output power supply management circuit includes that power input connects
Mouth 11, multiple voltage conversion circuits 12, controller 13, power module 14, voltage detection module 15 and current detection module 16.
Power input interface 11 accesses power supply signal；Multiple voltage conversion circuits 12 respectively with the power input interface 11
Connection is configured as implementing electric current and the conversion of/voltage, to reach how much current, high-power, multiplex roles output；Controller 13 with
The host computer 100 connects, and has multiple enabled pins connecting respectively with multiple voltage conversion circuits 12, is configured
To answer enable signal to make the corresponding work of voltage conversion circuit 12 to export according to the power supply control instruction output phase
Need electric signal；Power module 14 is connected between the power input interface 11 and the power pins of the controller 13, gives institute
State the power supply of controller 13；Voltage detection module 15 is connected to the voltage inspection of the power input interface 11 and the controller 13
It surveys between pin, is configured to detect the input voltage size of the power input interface 11；Current detection module 16 is connected to institute
It states between power input interface 11 and the current detecting pin of the controller 13, is configured to detect each voltage transformation electricity
The output size of current on road 12.It should be noted that the power supply that power module 14 exports is for managing electricity to multi-output power supply
Road work uses.
In a wherein embodiment, referring to Fig. 2, the controller 13 is single-chip microcontroller U7, the single-chip microcontroller U7 is logical
It crosses CAN bus and/or RS485 bus and the host computer 100 communicates.
Referring to Fig. 1, multiple voltage conversion circuits 12 include first voltage translation circuit 121, second voltage transformation
Circuit 122 and tertiary voltage translation circuit 123；The first voltage translation circuit 121 and the second voltage translation circuit 122
Output voltage it is identical, output electric current it is not identical；The output voltage of the tertiary voltage translation circuit 123 is greater than second electricity
The output voltage of translation circuit 122 is pressed, the output electric current of the tertiary voltage translation circuit 123 is converted greater than the second voltage
The output electric current of circuit 122.First voltage translation circuit 121, second voltage translation circuit 122 and tertiary voltage translation circuit
123 all can be multiple.
In a wherein embodiment, referring to Fig. 3, one of them described voltage conversion circuit 12 includes the first input
Capacitor E22, the first driving chip U14, first diode D12, the first inductance L18 and the first output capacitance E21.
The input terminal VIN of the first end of the first input capacitance E22 and the first driving chip U14 connect the electricity
Source input interface 11, the second end ground connection of the first input capacitance E22, the enable end EN of the first driving chip U14 connect
The of the enabled pin EN_CH5 of the first of the controller 13, the cathode of the first diode D12 and the first inductance L18
The switching node pin SW of one termination the first driving chip U14, the plus earth of the first diode D12, described the
Output end of the second end of one inductance L18 as the first voltage translation circuit 12, and connect by the first output capacitance E21
Ground.In the present embodiment, the first driving chip U14 is TPS54560, which converts as first voltage
Circuit 121, output voltage are 12 volts, and output electric current is 4 amperes.It is understood that can be by adjusting circuit devcie ginseng
Number is to adjust output voltage/electric current.
Further, the first input capacitance E22 is also parallel with multiple capacitor C154, C155, C156；First output capacitance
E21 can also series-parallel multiple filter capacitors, first voltage translation circuit 121 further includes sampling resistor R126 and R125, sampling
Resistance R126 is connect with the second end of the first inductance L18, and is grounded by sampling resistor R125, sampling resistor R126's and R125
Connects end altogether is connected with the feedback pin FB of the first driving chip U14.It further include be connected to first voltage translation circuit 121 defeated
The zener diode TVS13 of outlet, and zener diode TVS13 is parallel with reversed instruction diode D14.
Specifically, this first voltage translation circuit 121 when the first of single-chip microcontroller U7 the enabled pin EN_CH5 output high level
It can just work, the first driving chip U14 does not work when the enabled pin EN_CH5 of the first of single-chip microcontroller U7 exports low level, enters
Low-power consumption mode.For example powered on moment, the first enabled pin EN_CH5 low level reduce asking for the load current impact of output
Topic.Connect power input interface 11 battery it is low electricity when it is as needed, the enabled pin EN_CH5 of the first of single-chip microcontroller U7 is to low level
The output of this road is closed in instruction.This road, which has, indicates that diode D14 stamp-mounting-paper diode is lighted when output.
In a wherein embodiment, referring to Fig. 4, one of them described voltage conversion circuit 12 includes the second input
Capacitor E8, first switch tube Q1, the second driving chip U9, the second diode D3, the second inductance L15 and the second output capacitance E8.
The first end of the second input capacitance E8, the hot end of the first switch tube Q1 and the second driving core
The input terminal VIN of piece U9 connects the power input interface 11, and the second end of the second input capacitance E8 is grounded, and described second
The enable end EN of driving chip U9 connects the second enabled pin EN_CH4 of the controller 13, the door of the second driving chip U9
Pole HG connects the control terminal of the first switch tube Q1, the cathode of the cold end of the first switch tube Q1, the second diode D3
With the switching node pin SW of first termination the second driving chip U9 of the second inductance L15, second diode
The plus earth of D3, output end of the second end of the second inductance L15 as the voltage conversion circuit 12, and pass through described the
Two output capacitance E8 ground connection.The anode of the second diode D3 is grounded by a sampling resistor R85, the both ends sampling resistor R85
With the current detecting pin CS of the second driving chip U9 and current detecting pin CSG is connect respectively.In the present embodiment, second
Driving chip U9 is LM5088.The voltage conversion circuit 12 is used as second voltage translation circuit 122, and output voltage is 12 volts,
Exporting electric current is 6 amperes.It is understood that can be by adjusting circuit devcie parameter to adjust output voltage/electric current.
Further, the second input capacitance E8 is also parallel with multiple capacitor C119, C118, C120；Second output capacitance
E21 can also series-parallel multiple filter capacitor E7, C121-C123, second voltage translation circuit 122 further includes sampling resistor R100
And R101, sampling resistor R100 are connect with the second end of the second inductance L18, and are grounded by sampling resistor R101, sampling resistor
R100 is connected with the connects end altogether of R101 with the feedback pin FB of the second driving chip U9.It further include being connected to second voltage transformation electricity
The zener diode TVS10 of the output end on road 122, and zener diode TVS10 is parallel with reversed instruction diode DS1.
Specifically, this second voltage translation circuit 122 when the second of single-chip microcontroller U7 the enabled pin EN_CH4 output high level
It can just work, the second driving chip U9 does not work when the enabled pin EN_CH4 of the second of single-chip microcontroller U7 exports low level, enters
Low-power consumption mode.For example powered on moment, the enabled pin EN_CH4 low level of the second of single-chip microcontroller U7 reduce the load current of output
The problem of impact.Battery is as needed when low electric, and the enabled pin EN_CH4 of the second of single-chip microcontroller U7 closes this to low level instruction
Road output.DS1 stamp-mounting-paper diode is lighted when there is output on this road.
In a wherein embodiment, referring to Fig. 5, one of them described voltage conversion circuit 12 is inputted including third
Capacitor E15, second switch Q6, third switching tube Q7, the 4th switching tube Q9, the 5th switching tube Q8, third driving chip U5,
Three inductance L12 and third output capacitance E10.
The first end of the third input capacitance E15, the input terminal of the second switch Q6 and the third drive core
The input terminal VIN of piece U5 connects the power input interface 11, the second end ground connection of the third input capacitance E15, the third
The third that the enable end EN of driving chip U5 connects the controller 13 enables pin EN_CH1, the low electricity of the second switch Q6
Position end, the first end of the third inductance L12 and the hot end of the third switching tube Q7 and the third driving chip U5
The first switching node pin SW1 connection, the control of the second switch Q6 terminates the first of the third driving chip U5
HDRV1 foot is drawn in flash driving, and the control of the third switching tube Q7 terminates the first low side driving of the third driving chip U5
Pin LDRV1；The cold end of the cold end of the third switching tube Q7 and the 4th switching tube Q9 are connected to described altogether
The current sample pin CS of three driving chip U5, and be grounded by a sampling resistor R42, the control terminal of the 4th switching tube Q9
Connect the control termination described the of the second low side drive pin LDRV2, the 5th switching tube Q8 of the third driving chip U5
The second high side of three driving chip U5 drives pin HDRV2, hot end, the third inductance of the 4th switching tube Q9
The cold end of the second end of L12 and the 5th switching tube Q8 are connected to the second exchange section of the third driving chip U5 altogether
Point pin SW1, output end of the hot end of the 5th switching tube Q8 as the voltage conversion circuit 12, and pass through described the
Three output capacitance E10 ground connection.In the present embodiment, the third driving chip U5 is LM5176PWPR.The voltage conversion circuit 12
As tertiary voltage translation circuit 123, output voltage is 24 volts, and output electric current is 7 amperes.It is understood that can lead to
Circuit devcie parameter is overregulated to adjust output voltage/electric current.
Further, third input capacitance E15 is also parallel with multiple capacitor C79, C80, C81；Second output capacitance E21
Can also series-parallel multiple filter capacitor E11, C86, tertiary voltage translation circuit 123 further includes sampling resistor R45 and R46, is adopted
Sample resistance R45 is connect with the hot end of the 5th switching tube Q8, and is grounded by sampling resistor R46, sampling resistor R45 and R46
Connects end altogether connected with the feedback pin FB of third driving chip U5.It further include instruction diode D9.
Specifically, this DCDC circuit can just work when the third of single-chip microcontroller U7 enables pin EN_CH1 output high level,
Third driving chip U5U5 does not work when the third of single-chip microcontroller U7 enables pin EN_CH1 output low level, into low-power consumption mould
Formula.For example powered on moment, third enable the problem of pin EN_CH1 low level reduces the load current impact of output.The low electricity of battery
When it is as needed, third enable pin EN_CH1 give low level instruction close this road output.In addition, tertiary voltage translation circuit
123 be step-up/step-down circuit, cell voltage lower than nominal voltage 24V but without low electricity when automatically into boost mode, work as battery
Automatically into decompression mode when full electricity 29V or so, guarantees that output is 24V, be used primarily in the demanding load mould of voltage range
Block.
In a wherein embodiment, referring to Fig. 6, the current detection module 16 includes first resistor R54, the
Two resistance R68, the first operational amplifier U6-A, 3rd resistor R78, the 4th resistance R77, the 5th resistance R59, first capacitor C51,
6th resistance R52, the 7th resistance R69, first comparator U6-B and the 8th resistance R76.
The first termination power input interface 11 of the first resistor R54, the second end of the first resistor R54
The normal phase input end of the first operational amplifier U6-A is connect, and is grounded by second resistance R68；First operational amplifier
The inverting input terminal of U6-A is grounded by the 3rd resistor R78, and the output end of the first operational amplifier U6-A passes through institute
It states the 4th resistance R77 and connects its inverting input terminal, the first comparator U6-B is also being connect just by the 5th resistance R59
Phase input terminal；The normal phase input end of the first comparator U6-B is also grounded by the first capacitor C51, and described first compares
The inverting input terminal of device U6-B connects power supply by the 6th resistance R52, is also grounded by the 7th resistance R69, and described the
The output end of one comparator U6-B meets the current detecting pin OCP of the controller 13 by the 8th resistance R76, and controller 13 can
Whether worked with circuit according to testing result, such as the starting or closing of control voltage conversion circuit 12, emitter ground connection.Into one
Step ground, further includes the first NPN triode Q1 3 and the 9th resistance R60, and 3 base stage of the first NPN triode Q1 passes through the 9th resistance
R60 connects the output end of first comparator U6-B, and the collector of first NPN triode Q1 3 connects the enabled pin of controller 13
(for example being the first enabled pin EN_CH3), to directly control the starting or closing of corresponding voltage conversion circuit 12.
The control that single-chip microcontroller U7 can be opened or closed by the enabled foot to each voltage conversion circuit 12 as output channel
System.In addition single-chip microcontroller U7 can be communicated by communication module 485 and power-supply battery, acquire battery current state, for example, battery whether
Low electricity, whether output total current is normal etc., is then reported by CAN bus or RS485 communication module to host computer 100.And
Single-chip microcontroller U7 can also obtain the state of current output power supply circuit by voltage detection module 15 and current detection module 16, and
Host computer 100 is uploaded to, the method can be for the power supply that lead-acid battery is communicated without battery.Host computer 100 can pass through this in this way
A little information judge, and are managed by the single-chip microcontroller of electric power management circuit to 6 voltage output channels.
It can be seen that the core control stm8 single-chip microcontroller U7 of the electric power management circuit contains RS485/ from Fig. 7, Fig. 8
Multiple common communication interfaces such as RS232/CAN, have been well positioned to meet the requirement of external circuit difference communication interface.It only needs to match
The IC for closing the agreements such as common RS485/RS232/CAN can simplify circuit structure, keep communicating circuit more succinct and reliable.
Demand of the above-mentioned multi-output power supply management circuit according to different loads to voltage, provided with multiple and different voltage
Output interface, and each output interface can provide high current, meet demand of the different circuit modules to voltage, electric current.
External junction block is reduced, reduces the cost and installation space of system, and analog power and other circuits are effectively isolated, and are dropped
The interference that low power circuit introduces system improves the stability and reliability of electrical equipment.In addition, there are many this circuit designs
Communication interface can be carried out opening or closing management, reduce unnecessary battery by system requirements to different voltage output channels
Loss, and current power state can be fed back to system.Electric current, the short circuit of any one of each power load are exported by detection
Or multiple short circuits, corresponding voltage conversion circuit 12 (DC-DC) automatic protection, cutting output electric current, until failure is arranged
After removing, output electric current normally provides again, removes traditional manpower intervention for needing replacing fuse from.Because each load electricity consumption is
It can individually control, thus after host computer 100 can wait stabilized input voltages, then power load is opened one by one, to avoid
The heavy current impact that electric moment generates.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. a kind of multi-output power supply manages circuit, with host computer communication connection, the host computer presses the control of loading demand out-put supply
System instruction, which is characterized in that the multi-output power supply manages circuit and includes:
Access the power input interface of power supply signal；
It is multiple to be connect respectively with the power input interface, it is configured as the voltage conversion circuit of electric current and the conversion of/voltage；
It is connect with the host computer, and there are multiple enabled pins connecting respectively with multiple voltage conversion circuits, matched
It is set to and answers enable signal to make the corresponding voltage conversion circuit work to export according to the power supply control instruction output phase
Need the controller of electric signal；
It is connected between the power input interface and the power pins of the controller, the power supply mould powered to the controller
Block；
It is connected between the power input interface and the voltage sense pin of the controller, is configured to detect the power supply defeated
The voltage detection module of the input voltage size of incoming interface；And
It is connected between the power input interface and the current detecting pin of the controller, is configured to detect each electricity
Press the current detection module of the output size of current of translation circuit.
2. multi-output power supply as described in claim 1 manages circuit, which is characterized in that multiple voltage conversion circuits include
First voltage translation circuit, second voltage translation circuit and tertiary voltage translation circuit；
The first voltage translation circuit is identical with the output voltage of the second voltage translation circuit, and output electric current is not identical；
The output voltage of the tertiary voltage translation circuit is greater than the output voltage of the second voltage translation circuit, the third
The output electric current of voltage conversion circuit is greater than the output electric current of the second voltage translation circuit.
3. multi-output power supply as described in claim 1 manages circuit, which is characterized in that one of them described voltage conversion circuit
Including the first input capacitance, the first driving chip, first diode, the first inductance and the first output capacitance, in which:
The input of the first end of first input capacitance and first driving chip terminates the power input interface, described
The second end of first input capacitance is grounded, the first enabled pin of the enabled termination controller of first driving chip,
The switching node pin of first termination first driving chip of the cathode of the first diode and first inductance, institute
The plus earth of first diode, output end of the second end of first inductance as the voltage conversion circuit are stated, and is passed through
The first output capacitance ground connection.
4. multi-output power supply as claimed in claim 3 manages circuit, which is characterized in that first driving chip is
TPS54560。
5. multi-output power supply as described in claim 1 manages circuit, which is characterized in that one of them described voltage conversion circuit
Including the second input capacitance, first switch tube, the second driving chip, the second diode, the second inductance and the second output capacitance,
In:
The input terminal of the first end of second input capacitance, the input terminal of the first switch tube and second driving chip
Meet the power input interface, the second end ground connection of second input capacitance, the enabled termination institute of second driving chip
State the second enabled pin of controller, the gate pole of second driving chip connects the control terminal of the first switch tube, and described
First termination second driving chip of the output end of one switching tube, the cathode of second diode and second inductance
Switching node pin, the plus earth of second diode, the second end of second inductance is as voltage transformation electricity
The output end on road, and be grounded by second output capacitance.
6. multi-output power supply as claimed in claim 5 manages circuit, which is characterized in that second driving chip is
LM5088。
7. multi-output power supply as described in claim 1 manages circuit, which is characterized in that one of them described voltage conversion circuit
Including third input capacitance, second switch, third switching tube, the 4th switching tube, the 5th switching tube, third driving chip,
Three inductance and third output capacitance
The input terminal of the first end of the third input capacitance, the input terminal of the second switch and the third driving chip
Meet the power input interface, the second end ground connection of the third input capacitance, the enabled termination institute of the third driving chip
The third for stating controller enables pin, the first end and the third of the output end of the second switch, the third inductance
The input terminal of switching tube is connect with the first switching node pin of the third driving chip, the control terminal of the second switch
The first flash driving pin of the third driving chip is connect, the control of the third switching tube terminates the third driving chip
The first low side drive pin；The output end of the output end of the third switching tube and the 4th switching tube is connected to described altogether
The current sample pin of three driving chips, and being grounded by a sampling resistor, the control of the 4th switching tube termination described the
Second low side drive pin of three driving chips, the second of the control termination third driving chip of the 5th switching tube are high
Side drives pin, the output of the input terminal of the 4th switching tube, the second end of the third inductance and the 5th switching tube
End is connected to the second switching node pin of the third driving chip altogether, and the input terminal of the 5th switching tube becomes as the voltage
The output end of circuit is changed, and is grounded by the third output capacitance.
8. multi-output power supply as claimed in claim 7 manages circuit, which is characterized in that the third driving chip is
LM5176PWPR。
9. multi-output power supply as claimed in any one of claims 1 to 8 manages circuit, which is characterized in that the current detecting mould
Block includes first resistor, second resistance, the first operational amplifier, 3rd resistor, the 4th resistance, the 5th resistance, first capacitor,
Six resistance, the 7th resistance, first comparator and the 8th resistance, in which:
The first termination power input interface of the first resistor, the second termination first operation of the first resistor
The normal phase input end of amplifier, and be grounded by second resistance；The inverting input terminal of first operational amplifier passes through described
3rd resistor ground connection, the output end of first operational amplifier connect its inverting input terminal by the 4th resistance, also
The normal phase input end of the first comparator is connect by the 5th resistance；The normal phase input end of the first comparator also passes through
The first capacitor ground connection, the inverting input terminal of the first comparator connects power supply by the 6th resistance, also by described
The output end of 7th resistance eutral grounding, the first comparator is drawn by the current detecting that the 8th resistance connects the controller
Foot.
10. multi-output power supply as claimed in any one of claims 1 to 8 manages circuit, which is characterized in that the controller is single
Piece machine, the single-chip microcontroller are communicated by CAN bus and/or RS485 bus and the host computer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820639313.5U CN208433911U (en) | 2018-04-28 | 2018-04-28 | Multi-output power supply manages circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820639313.5U CN208433911U (en) | 2018-04-28 | 2018-04-28 | Multi-output power supply manages circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417255A (en) * | 2018-04-28 | 2019-11-05 | 深圳市神州云海智能科技有限公司 | Multi-output power supply manages circuit |
| CN111049395A (en) * | 2020-01-14 | 2020-04-21 | 上海博昂电气有限公司 | Switching power supply based on edge calculation |
| CN112019046A (en) * | 2019-05-30 | 2020-12-01 | 贵州振华群英电器有限公司（国营第八九一厂） | Multichannel power supply conversion management module based on singlechip |
-
2018
- 2018-04-28 CN CN201820639313.5U patent/CN208433911U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417255A (en) * | 2018-04-28 | 2019-11-05 | 深圳市神州云海智能科技有限公司 | Multi-output power supply manages circuit |
| CN112019046A (en) * | 2019-05-30 | 2020-12-01 | 贵州振华群英电器有限公司（国营第八九一厂） | Multichannel power supply conversion management module based on singlechip |
| CN111049395A (en) * | 2020-01-14 | 2020-04-21 | 上海博昂电气有限公司 | Switching power supply based on edge calculation |
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