CN105811741A - Power interface circuit - Google Patents
Power interface circuit Download PDFInfo
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- CN105811741A CN105811741A CN201610369898.9A CN201610369898A CN105811741A CN 105811741 A CN105811741 A CN 105811741A CN 201610369898 A CN201610369898 A CN 201610369898A CN 105811741 A CN105811741 A CN 105811741A
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- power interface
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- modulation module
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/0175—Coupling arrangements; Interface arrangements
- H03K19/017509—Interface arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0083—Converters characterised by their input or output configuration
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- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Power Engineering (AREA)
- Electronic Switches (AREA)
Abstract
The invention belongs to the field of power supply equipment and provides a power interface circuit.In an embodiment, the power interface circuit comprises a modulation module, a power interface, a voltage conversion module and a demodulation module.The modulation module receives direct-current voltage signals and control signals and modulates the direct-current voltage signals and the control signals prior to outputting modulation voltage signals.The modulation voltage signals are transmitted to the voltage conversion module and the demodulation module through the power interface, converted into direct-current voltage signals by the voltage conversion module and demodulated by the demodulation module to obtain control signals.By the power interface circuit, power signal transmission and control signal transmission can be both realized.When control of an electric appliance is required, the control signals can be directly transmitted to the electric appliance through the power interface circuit.Therefore, the problem that consumers are prone to plugging wrongly due to complexity of interfaces which need to be added in control signal transmission in the prior art is solved.
Description
Technical field
The invention belongs to power-supply device technical field, particularly relate to a kind of power interface circuit.
Background technology
Power interface is the interface connecting power supply with electrical appliance, and existing power interface generally only transmits power supply signal, and namely existing power interface only includes a power line and a ground wire.
And when needing electrical appliance is controlled, when namely needing transmission of control signals to electrical appliance, existing method is to be further added by a control signal coffret, such shortcoming is product complex interfaces, easy wrong plug when consumer uses, and interface is too many, water proof and dust proof difficulty.
Summary of the invention
The purpose of the embodiment of the present invention is in that to provide a kind of power interface circuit, aim to solve the problem that existing power interface can only transmit power supply signal, can not transmission of control signals, if increasing control signal coffret, then there is complex interfaces, easy wrong plug when consumer uses, and interface is too many, water proof and dust proof difficulty problem.
The embodiment of the present invention is achieved in that a kind of power interface circuit, and described power interface circuit includes:
First input end and the second input connect power module respectively and control module, receive the d. c. voltage signal of described power module output and the control signal of described control module output, and export the modulation module of modulated voltage signal after described d. c. voltage signal and described control signal are modulated；
Input terminates the outfan of described demodulation module, the power interface being transmitted by the modulated voltage signal that described modulation module exports；
Input terminates the outfan of described power interface, and the modulated voltage signal that described power interface is exported carries out voltage conversion, obtains the voltage transformation module of d. c. voltage signal；And
Input terminates the outfan of described power interface, and the modulated voltage signal that described power interface is exported is demodulated, and obtains the demodulation module of control signal.
Further, described voltage transformation module includes charhing unit and battery unit, described charhing unit and described battery unit are sequentially connected in series between the input and outfan thereof of described voltage transformation module, described charhing unit is the charging of described battery unit, described battery unit output d. c. voltage signal.
Further, described voltage transformation module also includes:
Input terminates the outfan of described battery unit, after the unstable d. c. voltage signal that described battery unit is exported is changed, and the DC/DC converting unit of output galvanic current pressure signal.
Further, described power interface circuit also includes:
Being connected between the outfan of described power interface and the input of described demodulation module, the modulated voltage signal that described power interface is exported is sampled, and by the sampling module of sampled value output to described demodulation module.
Further, described control signal is ac voltage signal.
Further, described control signal is ac pulse voltage signal.
Further, described modulation module includes between input and the outfan thereof that pressure unit and the first switch element, described pressure unit and described first switch element are connected in parallel on described modulation module, and the control of described first switch element terminates described control module.
Further, described modulation module includes the first voltage conversion unit and second switch unit, the input of described first voltage conversion unit and the first input end that first input end is described modulation module of described second switch unit, the output of described first voltage conversion unit terminates the second input of described second switch unit, the outfan that outfan is described modulation module of described second switch unit, second input that control end is described modulation module of described second switch unit.
Further, described modulation module includes the second voltage conversion unit and feedback control unit, described second voltage conversion unit is connected between the first input end of described modulation module and the outfan of described modulation module, the input of described feedback control unit terminates the outfan of described modulation module, the output of described feedback control unit terminates described second voltage conversion unit, second input that control end is described modulation module of described feedback control unit.
Further, described sampling module includes the first partial pressure unit and the second partial pressure unit, described first partial pressure unit and described second partial pressure unit are serially connected between input and the ground of described sampling module, the outfan that common port is described sampling module of described first partial pressure unit and described second partial pressure unit.
In embodiments of the present invention, power interface circuit includes modulation module, power interface, voltage transformation module and demodulation module, modulation module receives d. c. voltage signal and control signal, and after DC power signal and control signal are modulated, export modulated voltage signal, power interface is by modulated voltage signal transmission to voltage transformation module and demodulation module, modulated voltage signal is converted to d. c. voltage signal by voltage transformation module, and modulated voltage signal is demodulated obtaining control signal by demodulation module.The power interface circuit that the embodiment of the present invention provides is possible not only to transmission power supply signal, all right transmission of control signals, when electrical appliance is controlled by needs, control signal can be transmitted to electrical appliance either directly through this power interface circuit, solve when prior art wants transmission of control signals, interface need to be increased, there is complex interfaces, easy wrong plug when consumer uses, and interface is too many, the problem of water proof and dust proof difficulty.
Accompanying drawing explanation
Fig. 1 is the function structure chart of the power interface circuit that first embodiment of the invention provides；
Fig. 2 is the function structure chart of the power interface circuit that second embodiment of the invention provides；
Fig. 3 is the function structure chart of the power interface circuit that third embodiment of the invention provides；
Fig. 4 is the function structure chart of the power interface circuit that fourth embodiment of the invention provides；
Fig. 5 (a) is the waveform diagram that in the embodiment of the present invention, power module inputs the d. c. voltage signal to modulation module；When Fig. 5 (b) is that in the embodiment of the present invention, control signal is ac pulse voltage signal, the ceiling voltage of the modulated voltage signal of modulation module output is less than or equal to the waveform diagram of d. c. voltage signal；When Fig. 5 (c) is that in the embodiment of the present invention, control signal is ac pulse voltage signal, the ceiling voltage of the modulated voltage signal of modulation module output is more than the waveform diagram of d. c. voltage signal；
Fig. 6 is the structure chart of the first embodiment of the modulation module that the embodiment of the present invention provides；
Fig. 7 is the circuit structure diagram of the first implementation of the first embodiment of the modulation module that the embodiment of the present invention provides；
Fig. 8 is the circuit structure diagram of the second implementation of the first embodiment of the modulation module that the embodiment of the present invention provides；
Fig. 9 is the circuit structure diagram of the third implementation of the first embodiment of the modulation module that the embodiment of the present invention provides；
Figure 10 is the circuit structure diagram of the first embodiment of the switch S1 that the embodiment of the present invention provides；
Figure 11 is the circuit structure diagram of second embodiment of the switch S1 that the embodiment of the present invention provides；
Figure 12 (a) is the waveform diagram to the d. c. voltage signal of modulation module of the power module input in the first embodiment of the modulation module that the embodiment of the present invention provides；Figure 12 (b) is the waveform diagram to the control signal of modulation module of the control module input in the first embodiment of the modulation module that the embodiment of the present invention provides；Figure 12 (c) is the waveform diagram of the modulated voltage signal of the modulation module output in the first embodiment of the modulation module that the embodiment of the present invention provides；
Figure 13 is the structure chart of the second embodiment of the modulation module that the embodiment of the present invention provides；
Figure 14 is the circuit structure diagram of the first embodiment of the second switch unit that the embodiment of the present invention provides；
Figure 15 is the circuit structure diagram of the second embodiment of the second switch unit that the embodiment of the present invention provides；
Figure 16 is the circuit structure diagram of the 3rd embodiment of the second switch unit that the embodiment of the present invention provides；
Figure 17 (a) is the waveform diagram that in the embodiment of the present invention, power module inputs the d. c. voltage signal to modulation module；The waveform diagram of the modulated voltage signal of modulation module output when Figure 17 (b) is that in the embodiment of the present invention, the first voltage transformation module is reduction voltage circuit；The waveform diagram of the modulated voltage signal of modulation module output when Figure 17 (c) is that in the embodiment of the present invention, the first voltage transformation module is booster circuit；
Figure 18 is the structure chart of the 3rd embodiment of the modulation module that the embodiment of the present invention provides；
Figure 19 is the circuit structure diagram of the feedback control unit that the embodiment of the present invention provides；
Figure 20 is the circuit structure diagram of the first embodiment of the sampling module that the embodiment of the present invention provides；
Figure 21 (a) is the waveform diagram of the input signal of sampling module in the embodiment of the present invention；Figure 21 (b) is the waveform diagram of the output signal of the sampling module when the first partial pressure unit is resistance in the embodiment of the present invention；
Figure 22 is the circuit structure diagram of the second embodiment of the sampling module that the embodiment of the present invention provides；
Figure 23 is the circuit structure diagram of the 3rd embodiment of the sampling module that the embodiment of the present invention provides；
Figure 24 is the circuit structure diagram of the 4th embodiment of the sampling module that the embodiment of the present invention provides；
Figure 25 (a) is the waveform diagram of the input signal of sampling module in the embodiment of the present invention；Figure 21 (b) is the waveform diagram of the output signal of the sampling module when the first partial pressure unit is diode in the embodiment of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 illustrates the modular structure of the power interface circuit that first embodiment of the invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
A kind of power interface circuit, described power interface circuit includes:
First input end and the second input connect power module respectively and control module, receive the d. c. voltage signal of described power module output and the control signal of described control module output, and export the modulation module 1 of modulated voltage signal after described d. c. voltage signal and described control signal are modulated；
The outfan of input termination demodulation module 1, the power interface 2 that the modulated voltage signal that modulation module 1 exports is transmitted；
The outfan of input termination power interface 2, carries out voltage conversion to the modulated voltage signal of power interface 2 output, obtains the voltage transformation module 3 of d. c. voltage signal；And
The outfan of input termination power interface 2, is demodulated the modulated voltage signal of power interface 2 output, obtains the demodulation module 4 of control signal.
Fig. 2 illustrates the modular structure of the power interface circuit that second embodiment of the invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
As one embodiment of the invention, voltage transformation module 3 includes charhing unit 31 and battery unit 32, charhing unit 31 and battery unit 32 are sequentially connected in series between the input and outfan thereof of voltage transformation module 3, charhing unit 31 charges for battery unit 32, and battery unit 32 exports d. c. voltage signal.
In the present embodiment, battery unit 32 is accumulator, and accumulator output d. c. voltage signal is to load.In actual applications, the change of load only can affect the change of battery unit 32 output voltage, the electric current to battery unit 32 is exported without affecting charhing unit 31, that is, charhing unit 31 charges to battery unit 32 with the constant electric current that maybe will not suddenly change always, therefore, the change of load exports the voltage to demodulation module 4 without influence on modulation module 1, thus demodulation module 4 is correctly demodulated the impact of control signal by the change reducing load.
Fig. 3 illustrates the modular structure of the power interface circuit that third embodiment of the invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
As one embodiment of the invention, voltage transformation module 3 also includes:
The outfan of input termination battery unit 32, after the unstable d. c. voltage signal that battery unit 32 is exported is changed, the DC/DC converting unit 33 of output galvanic current pressure signal.
In the present embodiment, because the voltage of battery unit 32 is change, the unstable d. c. voltage signal therefore exported by battery unit 32 by increasing DC/DC unit is converted to galvanic current pressure signal, to improve the conversion efficiency of voltage transformation module 3.
Fig. 4 illustrates the modular structure of the power interface circuit that fourth embodiment of the invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
As one embodiment of the invention, described power interface circuit also includes:
It is connected between the outfan of power interface 2 and the input of demodulation module 4, the modulated voltage signal of power interface 2 output is sampled, and by the sampling module 5 of sampled value output to demodulation module 4.
Fig. 5 (a) illustrates that in the embodiment of the present invention, power module inputs the waveform diagram of the d. c. voltage signal to modulation module；Fig. 5 (b) illustrates that when control signal is ac pulse voltage signal in the embodiment of the present invention, the ceiling voltage of the modulated voltage signal of modulation module output is less than or equal to the waveform diagram of d. c. voltage signal；Fig. 5 (c) illustrates that when control signal is ac pulse voltage signal in the embodiment of the present invention, the ceiling voltage of the modulated voltage signal of modulation module output is more than the waveform diagram of d. c. voltage signal.
As one embodiment of the invention, described power module output d. c. voltage signal is to modulation module 1, when described control module output AC voltage signal is to modulation module 1, the modulated voltage signal of modulation module 1 output is the superposition signal of ac voltage signal on d. c. voltage signal.
As another embodiment of the present invention, when described control module output AC pulse voltage signal is to modulation module 1, the modulated voltage signal of modulation module 1 output is the superposition signal of ac pulse voltage signal on d. c. voltage signal.
Fig. 6 illustrates the structure chart of the first embodiment of the modulation module that the embodiment of the present invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
As one embodiment of the invention, modulation module 1 includes pressure unit 11 and the first switch element 12, and pressure unit 11 and the first switch element 12 are connected in parallel between input and the outfan thereof of modulation module 1, and the control of the first switch element 12 terminates described control module.
In the present embodiment, the input of modulation module 1 and the voltage difference of its outfan are the voltage drop of pressure unit 11, the value that maximum is its d. c. voltage signal received of the modulated voltage signal of modulation module 1 output, the minima of the modulated voltage signal of modulation module 1 output is the voltage drop that the d. c. voltage signal that modulation module 1 receives deducts pressure unit 11.
Fig. 7 illustrates the circuit structure diagram of the first implementation of the first embodiment of the modulation module that the embodiment of the present invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
As one embodiment of the invention, pressure unit 11 includes resistance R1, switch element 12 includes switch S1, first end of resistance R1 is connected to the first input end of modulation module 1 altogether with a end switching S1, the b end of second end of resistance R1 and switch S1 is connected to the outfan of modulation module 1 altogether, second input that c end is modulation module 1 of switch S1, the end c that controls of switch S1 controls conducting and the closedown of switch S1.
Fig. 8 illustrates the circuit structure diagram of the second implementation of the first embodiment of the modulation module that the embodiment of the present invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
As one embodiment of the invention, pressure unit 11 includes diode D1, switch element 12 includes switch S1, the anode of diode D1 is connected to the first input end of modulation module 1 altogether with a end switching S1, the b end of the negative electrode of diode D1 and switch S1 is connected to the outfan of modulation module 1 altogether, second input that c end is modulation module 1 of switch S1, the end c that controls of switch S1 controls conducting and the closedown of switch S1.
In the present embodiment, because diode D1 has voltage stabilizing feature, therefore, the voltage of modulation module 1 output will not change with the change of load.
Fig. 9 illustrates the circuit structure diagram of the third implementation of the first embodiment of the modulation module that the embodiment of the present invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
As one embodiment of the invention, pressure unit 11 includes the diode D1 of multiple series connection, switch element 12 includes switch S1, the anode of first diode D1 is connected to the first input end of modulation module 1 altogether with a end switching S1, the b end of the negative electrode of last diode D1 and switch S1 is connected to the outfan of modulation module 1 altogether, second input that c end is modulation module 1 of switch S1, the end c that controls of switch S1 controls conducting and the closedown of switch S1.
Figure 10 illustrates the circuit structure diagram of the first embodiment of the switch S1 that the embodiment of the present invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
As one embodiment of the invention, switch S1 includes resistance R2, resistance R3, metal-oxide-semiconductor Q1, audion Q2, the source electrode of metal-oxide-semiconductor Q1 and first end of resistance R2 are jointly for a end of switch S1, the b end that drain electrode is switch S1 of metal-oxide-semiconductor Q1, second end of the grid of metal-oxide-semiconductor Q1 and resistance R2 is connected to the colelctor electrode of audion Q2 altogether, the base stage of audion Q2 is the c end of switch S1, the grounded emitter of audion Q2.
Figure 11 illustrates the circuit structure diagram of second embodiment of the switch S1 that the embodiment of the present invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
As one embodiment of the invention, switch S1 includes resistance R2, resistance R3, audion Q3, audion Q2, the emitter stage of audion Q3 and first end of resistance R2 are jointly for a end of switch S1, the current collection of audion Q3 extremely switchs the b end of S1, second end of the base stage of audion Q3 and resistance R2 is connected to the colelctor electrode of audion Q2 altogether, the base stage of audion Q2 is the c end of switch S1, the grounded emitter of audion Q2.
Figure 12 (a) illustrates the waveform diagram to the d. c. voltage signal of modulation module of the power module input in the first embodiment of the modulation module that the embodiment of the present invention provides；Figure 12 (b) illustrates the waveform diagram to the control signal of modulation module of the control module input in the first embodiment of the modulation module that the embodiment of the present invention provides；Figure 12 (c) illustrates the waveform diagram of the modulated voltage signal of the modulation module output in the first embodiment of the modulation module that the embodiment of the present invention provides.
In the present embodiment, the output of described control module is ac voltage signal to the control signal of modulation module 1, and the modulated voltage signal of modulation module 1 output is also ac voltage signal.
Figure 13 illustrates the structure chart of the second embodiment of the modulation module that the embodiment of the present invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
As one embodiment of the invention, modulation module 1 includes the first voltage conversion unit 13 and second switch unit 14, the input of the first voltage conversion unit 13 and the first input end that first input end is modulation module 1 of second switch unit 14, second input of the output termination second switch unit 14 of the first voltage conversion unit 13, the outfan of second switch unit 14 is the outfan of modulation module 1, second input that control end is modulation module 1 of second switch unit 14.
In the present embodiment, the first voltage conversion unit 13 can be booster circuit, it is also possible to for reduction voltage circuit, the input of modulation module 1 and the voltage difference of its outfan are pressure drop or the pressure liter of the first voltage conversion unit 13.
Figure 14 illustrates the circuit structure diagram of the first embodiment of the second switch unit that the embodiment of the present invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
As one embodiment of the invention, second switch unit 14 includes movable end a, movable end b, fixing end c and controls end d, the first input end that moved end a is modulation module 1 of switch element 14, the movable end b of switch element 14 connects the outfan of the first voltage transformation module 13, second input that control end d is modulation module 1 of switch element 14, the outfan that fixing end c is modulation module 1 of switch element 14.
Figure 15 illustrates the circuit structure diagram of the second embodiment of the second switch unit that the embodiment of the present invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
As one embodiment of the invention, second switch unit 14 includes movable end a, movable end b, fixing end c, fixing end d, controls end e and control end f, the first input end that movable end a is modulation module 1 of switch element 14, the movable end b of switch element 14 connects the outfan of the first voltage transformation module 13, the control end e of the switch element 14 and control end f of switch element 14 is the second input of modulation module 1, the fixing end c of switch element 14 and the outfan that fixing end d is modulation module 1 of switch element 14 jointly.
Figure 16 illustrates the circuit structure diagram of the 3rd embodiment of the second switch unit that the embodiment of the present invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
As one embodiment of the invention, second switch unit 14 includes movable end a, controls end b and fixing end c, the first input end that movable end a is modulation module 1 of switch element 14, second input that control end b is modulation module 1 of switch element 14, the outfan that fixing end c is modulation module 1 of switch element 14, meanwhile, the fixing end c of switch element 14 also connects the first voltage conversion unit 13.
Figure 17 (a) illustrates that in the embodiment of the present invention, power module input is to the waveform diagram of the d. c. voltage signal of modulation module, and Figure 17 (b) illustrates the waveform diagram of the modulated voltage signal of modulation module output when the first voltage transformation module is reduction voltage circuit in the embodiment of the present invention；Figure 17 (c) illustrates the waveform diagram of the modulated voltage signal of modulation module output when the first voltage transformation module is booster circuit in the embodiment of the present invention.
In one embodiment of this invention, when the first voltage conversion unit 13 is booster circuit, the maximum of the modulated voltage signal of modulation module 1 output is the magnitude of voltage of the first voltage conversion unit 13 output, the value that minima is the d. c. voltage signal that modulation module 1 receives of the modulated voltage signal of modulation module 1 output；In another embodiment of the invention, when the first voltage conversion unit 13 is reduction voltage circuit, the value that maximum is the d. c. voltage signal that modulation module 1 receives of the modulated voltage signal of modulation module 1 output, the minima of the modulated voltage signal of modulation module 1 output is the magnitude of voltage of the first voltage conversion unit 13 output.
Figure 18 illustrates the structure chart of the 3rd embodiment of the modulation module that the embodiment of the present invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
As one embodiment of the invention, modulation module 1 includes the second voltage conversion unit 15 and feedback control unit 16, second voltage conversion unit 15 is connected between the first input end of modulation module 1 and the outfan of modulation module 1, the outfan of the input termination modulation module 1 of feedback control unit 16, the output of feedback control unit 16 terminates the second voltage conversion unit 15, second input that control end is modulation module 1 of feedback control unit 16.
In the present embodiment, by arranging feedback control unit 16 so that user can arrange maximum and the minima of the modulated voltage signal of modulation module 1 output according to the actual requirements flexibly.
Figure 19 illustrates the circuit structure diagram of the feedback control unit that the embodiment of the present invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
As one embodiment of the invention, feedback control unit 16 includes resistance R4, resistance R5, resistance R6, resistance R7 and audion Q4, resistance R4 and resistance R5 is sequentially connected in series before the outfan and ground of modulation module 1, the common port of resistance R4 and resistance R5 is the outfan of feedback control unit 16, first end of the common port of resistance R4 and resistance R5 also connecting resistance R6, the colelctor electrode of the second termination audion Q4 of resistance R6, the grounded emitter of audion Q4, first end of the base stage connecting resistance R7 of audion Q4, the control end that the second end is feedback control unit of resistance R7.
As one embodiment of the invention, sampling module 5 includes the first partial pressure unit and the second partial pressure unit, described first partial pressure unit and described second partial pressure unit are serially connected between input and the ground of sampling module 5, the outfan that common port is sampling module 5 of described first partial pressure unit and described second partial pressure unit.
Figure 20 illustrates the circuit structure diagram of the first embodiment of the sampling module that the embodiment of the present invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
As one embodiment of the invention, described first partial pressure unit includes resistance R8, described second partial pressure unit includes resistance R9, resistance R8 and resistance R9 and is sequentially connected in series between the input and ground of sampling module 5, and the common port of resistance R8 and resistance R9 is the outfan of sampling module 5.
Figure 21 (a) illustrates the waveform diagram of the input signal of sampling module in the embodiment of the present invention；Figure 21 (b) illustrates the waveform diagram of the output signal of the sampling module when the first partial pressure unit is resistance in the embodiment of the present invention.
In the present embodiment, the input signal of sampling module 5 is modulated voltage signal, when described first partial pressure unit is resistance, after sampling module 5 sampling, the d. c. voltage signal in the modulated voltage signal of output and control signal (ac voltage signal) equal proportion reduce.
Figure 22 illustrates the circuit structure diagram of the second embodiment of the sampling module that the embodiment of the present invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
As one embodiment of the invention, described first partial pressure unit includes stabilivolt D2, and described second partial pressure unit includes resistance R9, and the negative electrode of stabilivolt D2 is the input of sampling module 5, the anode of stabilivolt D2 passes through resistance R9 ground connection, and the anode of stabilivolt D2 is the outfan of sampling module 5.
Figure 23 illustrates the circuit structure diagram of the 3rd embodiment of the sampling module that the embodiment of the present invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
As one embodiment of the invention, described first partial pressure unit includes diode D3, and described second partial pressure unit includes resistance R9, and the anode of diode D3 is the input of sampling module 5, the negative electrode of diode D3 passes through resistance R9 ground connection, and the negative electrode of diode D3 is the outfan of sampling module 5.
Figure 24 illustrates the circuit structure diagram of the 4th embodiment of the sampling module that the embodiment of the present invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
As one embodiment of the invention, described first partial pressure unit includes the diode D3 of multiple series connection, described second partial pressure unit includes resistance R9, the input that anode is sampling module 5 of first diode D3 in the diode D3 of multiple series connection, the negative electrode of last diode D3 passes through resistance R9 ground connection, the outfan that negative electrode is sampling module 5 of last diode D3.
Figure 25 (a) illustrates the waveform diagram of the input signal of sampling module in the embodiment of the present invention；Figure 21 (b) illustrates the waveform diagram of the output signal of the sampling module when the first partial pressure unit is diode in the embodiment of the present invention.
In the present embodiment, the input signal of sampling module 5 is modulated voltage signal, when described first partial pressure unit is diode or Zener diode, because diode has constant-voltage characteristic, therefore after sampling module 5 sampling, the d. c. voltage signal in the modulated voltage signal of output reduces, and control signal (ac voltage signal) is constant.
In embodiments of the present invention, power interface circuit includes modulation module, power interface, voltage transformation module and demodulation module, modulation module receives d. c. voltage signal and control signal, and after DC power signal and control signal are modulated, export modulated voltage signal, power interface is by modulated voltage signal transmission to voltage transformation module and demodulation module, modulated voltage signal is converted to d. c. voltage signal by voltage transformation module, and modulated voltage signal is demodulated obtaining control signal by demodulation module.The power interface circuit that the embodiment of the present invention provides is possible not only to transmission power supply signal, all right transmission of control signals, when electrical appliance is controlled by needs, control signal can be transmitted to electrical appliance either directly through this power interface circuit, solve when prior art wants transmission of control signals, interface need to be increased, there is complex interfaces, easy wrong plug when consumer uses, and interface is too many, the problem of water proof and dust proof difficulty.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention.
Claims (10)
1. a power interface circuit, it is characterised in that described power interface circuit includes:
First input end and the second input connect power module respectively and control module, receive the d. c. voltage signal of described power module output and the control signal of described control module output, and described direct current electric is pressed signal and described control signal export the modulation module of modulated voltage signal after being modulated；
Input terminates the outfan of described demodulation module, the power interface being transmitted by the modulated voltage signal that described modulation module exports；
Input terminates the outfan of described power interface, and the modulated voltage signal that described power interface is exported carries out voltage conversion, obtains the voltage transformation module of d. c. voltage signal；And
Input terminates the outfan of described power interface, and the modulated voltage signal that described power interface is exported is demodulated, and obtains the demodulation module of control signal.
2. power interface circuit as claimed in claim 1, it is characterized in that, described voltage transformation module includes charhing unit and battery unit, described charhing unit and described battery unit are sequentially connected in series between the input and outfan thereof of described voltage transformation module, described charhing unit is the charging of described battery unit, described battery unit output d. c. voltage signal.
3. power interface circuit as claimed in claim 2, it is characterised in that described voltage transformation module also includes:
Input terminates the outfan of described battery unit, after the unstable d. c. voltage signal that described battery unit is exported is changed, and the DC/DC converting unit of output galvanic current pressure signal.
4. power interface circuit as claimed in claim 3, it is characterised in that described power interface circuit also includes:
Being connected between the outfan of described power interface and the input of described demodulation module, the modulated voltage signal that described power interface is exported is sampled, and by the sampling module of sampled value output to described demodulation module.
5. power interface circuit as claimed in claim 4, it is characterised in that described control signal is ac voltage signal.
6. power interface circuit as claimed in claim 5, it is characterised in that described control signal is ac pulse voltage signal.
7. power interface circuit as claimed in claim 6, it is characterized in that, described modulation module includes pressure unit and the first switch element, described pressure unit and described first switch element are connected in parallel between input and the outfan thereof of described modulation module, and the control of described first switch element terminates described control module.
8. power interface circuit as claimed in claim 6, it is characterized in that, described modulation module includes the first voltage conversion unit and second switch unit, the input of described first voltage conversion unit and the first input end that first input end is described modulation module of described second switch unit, the output of described first voltage conversion unit terminates the second input of described second switch unit, the outfan that outfan is described modulation module of described second switch unit, second input that control end is described modulation module of described second switch unit.
9. power interface circuit as claimed in claim 6, it is characterized in that, described modulation module includes the second voltage conversion unit and feedback control unit, described second voltage conversion unit is connected between the first input end of described modulation module and the outfan of described modulation module, the input of described feedback control unit terminates the outfan of described modulation module, the output of described feedback control unit terminates described second voltage conversion unit, second input that control end is described modulation module of described feedback control unit.
10. power interface circuit as claimed in claim 4, it is characterized in that, described sampling module includes the first partial pressure unit and the second partial pressure unit, described first partial pressure unit and described second partial pressure unit are serially connected between input and the ground of described sampling module, the outfan that common port is described sampling module of described first partial pressure unit and described second partial pressure unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610369898.9A CN105811741A (en) | 2016-05-27 | 2016-05-27 | Power interface circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610369898.9A CN105811741A (en) | 2016-05-27 | 2016-05-27 | Power interface circuit |
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| Publication Number | Publication Date |
|---|---|
| CN105811741A true CN105811741A (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610369898.9A Pending CN105811741A (en) | 2016-05-27 | 2016-05-27 | Power interface circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107666159A (en) * | 2016-07-28 | 2018-02-06 | 深圳市赛音电子有限公司 | A kind of supply unit |
| CN109268563A (en) * | 2018-10-09 | 2019-01-25 | 北京大豪科技股份有限公司 | Air valve driving circuit, air valve drive control method and apparatus |
| CN110392180A (en) * | 2019-06-05 | 2019-10-29 | 联想图像（天津）科技有限公司 | Signal circuit |
| CN112653444A (en) * | 2020-12-18 | 2021-04-13 | 施镇乾 | Signal transmission circuit, power line and equipment |
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| EP2963820A1 (en) * | 2014-07-04 | 2016-01-06 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | High voltage driver |
| CN105515616A (en) * | 2016-01-15 | 2016-04-20 | 伟创力管理（上海）有限公司 | Direct-current power supply cable carrier communication system and communication method |
| CN205829446U (en) * | 2016-05-27 | 2016-12-21 | 深圳市赛音电子有限公司 | A kind of power interface circuit |
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| EP2963820A1 (en) * | 2014-07-04 | 2016-01-06 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | High voltage driver |
| CN105515616A (en) * | 2016-01-15 | 2016-04-20 | 伟创力管理（上海）有限公司 | Direct-current power supply cable carrier communication system and communication method |
| CN205829446U (en) * | 2016-05-27 | 2016-12-21 | 深圳市赛音电子有限公司 | A kind of power interface circuit |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107666159A (en) * | 2016-07-28 | 2018-02-06 | 深圳市赛音电子有限公司 | A kind of supply unit |
| CN107666159B (en) * | 2016-07-28 | 2023-12-26 | 深圳市赛音电子有限公司 | Power supply device |
| CN109268563A (en) * | 2018-10-09 | 2019-01-25 | 北京大豪科技股份有限公司 | Air valve driving circuit, air valve drive control method and apparatus |
| CN110392180A (en) * | 2019-06-05 | 2019-10-29 | 联想图像（天津）科技有限公司 | Signal circuit |
| CN112653444A (en) * | 2020-12-18 | 2021-04-13 | 施镇乾 | Signal transmission circuit, power line and equipment |
| CN112653444B (en) * | 2020-12-18 | 2024-05-03 | 施镇乾 | Signal transmission circuit, power line and electronic equipment |
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Application publication date: 20160727 |