CN204256447U - A kind of energy supply control module of automobile vehicle body controller - Google Patents
A kind of energy supply control module of automobile vehicle body controller Download PDFInfo
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- CN204256447U CN204256447U CN201420825368.7U CN201420825368U CN204256447U CN 204256447 U CN204256447 U CN 204256447U CN 201420825368 U CN201420825368 U CN 201420825368U CN 204256447 U CN204256447 U CN 204256447U
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Abstract
The utility model relates to a kind of energy supply control module of automobile vehicle body controller, comprises accumulator, also comprises the power circuit for carrying out filtering, step-down to circuit; For the main control unit MCU whether control load works; For the output control unit that the pulse waveform inputted main control unit MCU controls; For controlling the input circuit whether main control unit MCU works.The utility model effectively can solve the problem of automobile Shortcomings in the control of power supply, simple and conveniently must realize power saving, simple and reliable for structure, can be widely used in automobile power source control field.
Description
Technical field
The utility model relates to automobile power source control field, particularly relates to a kind of energy supply control module of automobile vehicle body controller.
Background technology
Along with improving constantly of people's living standard, automobile receives much attention with the feature of himself, becomes indispensable trip instrument in people's life, the continuous increase of automobile electronics and upgrading, the more and more comfortable change of automotive electronics and hommization, wherein very important is power management.
Existing automotive electronics mostly uses storage battery power supply, and therefore the electricity of power supply is certain, in order to easy to use and each electric function of automobile can well be realized, just needs to protect electricity consumption, allows it that inadequate problem of electricity not easily occurs.In other words, just need to realize power saving as much as possible.And existing automobile power source controls convenient because design is improved not and rationally, can not realize the object of power saving.
Utility model content
The purpose of this utility model is to provide a kind of energy supply control module of automobile vehicle body controller, solves the problem of automobile Shortcomings in the control of power supply.
The utility model solves the technical scheme that its technical matters adopts: a kind of energy supply control module of automobile vehicle body controller, comprises accumulator, also comprises the power circuit for carrying out filtering, step-down to circuit, for the main control unit MCU whether control load works, for the output control unit that the pulse waveform inputted main control unit MCU controls, for controlling the input circuit whether main control unit MCU works, the input end of power circuit is connected with the output terminal of accumulator, the voltage dropping power supply output terminal VCC of power circuit is connected with the power input of main control unit MCU3, the filter power supply output terminal VBAT_D of power circuit is connected with the filter power supply input end VBAT_D of output control unit, the pulse waveform power input VBAT_SW_OUT of output control unit is connected with the pulse waveform power output end VBAT_SW_OUT of main control unit MCU3, the power supply signal output terminal VBAT_SW of output control unit is connected with the signal power source input end VBAT_SW of input circuit, the switching signal power input CON_SW_IN of input circuit is connected with load switch, the power supply signal output terminal SW_IN of input circuit is connected with the power supply signal input end of main control unit MCU, the power supply signal output terminal of main control unit MCU connects load.
Preferably, power circuit comprises isolating diode D1, isolating diode D2, filter capacitor C6 and produces the DC_DC circuit of main control unit MCU required voltage; DC_DC circuit is provided with voltage dropping power supply output terminal VCC; The anode of isolating diode D1 and the positive pole of accumulator connect, and the negative electrode of isolating diode D1 and the input end of DC_DC circuit connect; The anode of isolating diode D2 connects the anode of isolating diode D1, and the negative electrode of isolating diode D2 connects the negative electrode of isolating diode D1; The voltage dropping power supply output terminal VCC of DC_DC circuit connects the power input of main control unit MCU.
Preferably, described DC_DC circuit comprises power supply chip U1, has been arranged in parallel filter capacitor C7, filter capacitor C8 and electrochemical capacitor C3 between the input end of power supply chip U1 and ground; The filter capacitor C4 be arranged in parallel between the output terminal of power supply chip U1 and ground and filter capacitor C5; Electrochemical capacitor C3 anode is provided with filter power supply output terminal VBAT_D.
Preferably, output control unit comprises triode Q2, partially value resistance R5, partially value resistance R7, partially value resistance R9, filter capacitor C16, triode Q1, divider resistance R10, stabilivolt Z1, filter capacitor C15, filter power supply input end VBAT_D, pulse waveform power input VBAT_SW_OUT, pulse waveform power input VBAT_SW_OUT; The collector of triode Q2 accesses filter power supply output terminal VBAT_D by inclined value resistance R5, R7 of series winding; The base stage of triode Q2 meets the pulse waveform power input VBAT_SW_OUT of main control unit MCU by inclined value resistance R9; The base that filter power supply C16 is connected to triode Q2 is between pole and ground; The grounded emitter of triode Q2.The collector of triode Q1 meets filter power supply output terminal VBAT_D; The base stage of triode Q1 is connected on the link of value resistance R5 and inclined value resistance R7 partially; Between the emitter that divider resistance R10 and filter capacitor C15 is arranged on triode Q1 and ground; Divider resistance R10 and filter capacitor C15 is in parallel; The anode of filter capacitor C15 is provided with pulse waveform power input VBAT_SW_OUT.
In order to protect triode Q1, preventing puncture short, also comprising stabilivolt Z1 in output control unit 4, the negative electrode of stabilivolt Z1 is connected with the collector of triode Q1, and the sun of stabilivolt Z1 is connected with the emitter of triode Q1.
Preferably, input circuit comprises resistance R55, resistance R58, resistance R62, electric capacity C37, resistance R55, resistance R58, resistance are arranged in series successively between the signal power source input end VBAT_SW and ground of input circuit 5, link between resistance R55 and resistance R58 is provided with the switching signal power input CON_SW_IN connecting load switch, electric capacity C37 is arranged in parallel the two ends at resistance R62, and the anode of electric capacity C37 is provided with the power supply signal input end SW_IN connecting main control unit MCU power supply signal input end.
The beneficial effects of the utility model: carry out filtering step-down process from the power supply of accumulator by power electric pass, the power supply of filtered burning voltage is supplied to output control module, step-down power supply be supplied to main control unit MCU, by MCU, the power supply after step-down is processed again, output pulse waveform power supply signal is to output control unit, carry out amplification by the triode Q1 of output control unit and triode Q2 paired pulses waveform power source signal again to control, then export to input circuit; When input circuit receives the low level signal of load switch, gone by low level signal to drag down the pulse waveform power supply signal continuing input from output control unit, main control unit is made to enter duty, thus powering load, when load switch does not send low level signal to input circuit, time namely not according to dynamic load switch, main control unit MCU does not work, through certain hour laggard enter sleep state, reach the effect of power saving.
The utility model effectively can solve the problem of automobile Shortcomings in the control of power supply, simple and conveniently must realize power saving, simple and reliable for structure, can be widely used in automobile power source control field.
Below with reference to drawings and Examples, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model.
Fig. 2 is the schematic diagram of power circuit.
Fig. 3 is the schematic diagram of output control unit.
Fig. 4 is the schematic diagram of input power.
Embodiment
Embodiment, the energy supply control module of a kind of automobile vehicle body controller as shown in Figures 1 to 4, comprises accumulator 1, also comprises the power circuit 2 for carrying out filtering, step-down to circuit, for the main control unit MCU3 whether control load 6 works, for the output control unit 4 that the pulse waveform inputted main control unit MCU3 controls, for controlling the input circuit 5 whether main control unit MCU3 works, the input end of power circuit 2 is connected with the output terminal of accumulator, the voltage dropping power supply output terminal VCC of power circuit 2 is connected with the power input of main control unit MCU3, the filter power supply output terminal VBAT_D of power circuit 2 is connected with the filter power supply input end VBAT_D of output control unit 4, the pulse waveform power input VBAT_SW_OUT of output control unit 4 is connected with the pulse waveform power output end VBAT_SW_OUT of main control unit MCU3, the power supply signal output terminal VBAT_SW of output control unit 4 is connected with the signal power source input end VBAT_SW of input circuit 5, the switching signal power input CON_SW_IN of input circuit 5 is connected with load switch 7, the power supply signal output terminal SW_IN of input circuit 5 is connected with the power supply signal input end of main control unit MCU3, the power supply signal output terminal of main control unit MCU3 connects load 6.
Power circuit 2 comprises isolating diode D1, isolating diode D2, filter capacitor C6 and produces the DC_DC circuit of main control unit MCU (3) required voltage; DC_DC circuit is provided with voltage dropping power supply output terminal VCC; The anode of isolating diode D1 and the positive pole of accumulator connect, and the negative electrode of isolating diode D1 and the input end of DC_DC circuit connect; The anode of isolating diode D2 connects the anode of isolating diode D1, and the negative electrode of isolating diode D2 connects the negative electrode of isolating diode D1; The voltage dropping power supply output terminal VCC of DC_DC circuit connects the power input of main control unit MCU3.
Described DC_DC circuit comprises power supply chip U1, has been arranged in parallel filter capacitor C7, filter capacitor C8 and electrochemical capacitor C3 between the input end of power supply chip U1 and ground; The filter capacitor C4 be arranged in parallel between the output terminal of power supply chip U1 and ground and filter capacitor C5; Electrochemical capacitor C3 anode is provided with filter power supply output terminal VBAT_D.
Output control unit 4 comprises triode Q2, partially value resistance R5, partially value resistance R7, partially value resistance R9, filter capacitor C16, triode Q1, divider resistance R10, stabilivolt Z1, filter capacitor C15, filter power supply input end VBAT_D, pulse waveform power input VBAT_SW_OUT, pulse waveform power input VBAT_SW_OUT; The collector of triode Q2 accesses filter power supply output terminal VBAT_D by inclined value resistance R5, R7 of series winding; The base stage of triode Q2 meets the pulse waveform power input VBAT_SW_OUT of main control unit MCU3 by inclined value resistance R9; The base that filter power supply C16 is connected to triode Q2 is between pole and ground; The grounded emitter of triode Q2.The collector of triode Q1 meets filter power supply output terminal VBAT_D; The base stage of triode Q1 is connected on the link of value resistance R5 and inclined value resistance R7 partially; Between the emitter that divider resistance R10 and filter capacitor C15 is arranged on triode Q1 and ground; Divider resistance R10 and filter capacitor C15 is in parallel; The anode of filter capacitor C15 is provided with pulse waveform power input VBAT_SW_OUT.
Also comprise stabilivolt Z1 in output control unit 4, the negative electrode of stabilivolt Z1 is connected with the collector of triode Q1, and the sun of stabilivolt Z1 is connected with the emitter of triode Q1.
Input circuit 5 comprises resistance R55, resistance R58, resistance R62, electric capacity C37, resistance R55, resistance R58, resistance are arranged in series successively between the signal power source input end VBAT_SW and ground of input circuit 5, link between resistance R55 and resistance R58 is provided with the switching signal power input CON_SW_IN connecting load switch 7, electric capacity C37 is arranged in parallel the two ends at resistance R62, and the anode of electric capacity C37 is provided with the power supply signal input end SW_IN connecting main control unit MCU3 power supply signal input end.
Principle of work: power circuit carries out filtering, step-down to the voltage that accumulator inputs, filtered power supply is wherein connected to the filter power supply input end VBAT_D of output control unit by the filter power supply output terminal VBAT_D on it, and the 5V power supply after step-down accesses the power input of main control unit MCU by voltage dropping power supply output terminal VCC; Main control unit MCU passes through process, output pulse waveform power supply signal, and the pulse waveform power input VBAT_SW_OUT being passed to output control unit by the pulse waveform power output end VBAT_SW_OUT on it.
The filter power supply input end VBAT_D of output control unit receives the emitter of triode Q1, the base stage of triode Q1 receives the collector of triode Q2 through resistance R7, the base stage of triode Q2 receives the pulse waveform power input VBAT_SW_OUT of output control unit through resistance R9, Q1 and Q2 can amplify the pulse waveform signal receiving autonomous control unit MCU pulse waveform power output end VBAT_SW_OUT, thus controls the output waveform of the power supply signal output terminal VBAT_SW of output control unit.Namely, when the output of main control unit MCU pulse waveform power output end VBAT_SW_OUT is low level, triode Q2 conducting, therefore the base stage of Q1 is low level, and emitting stage is high level, triode Q1 conducting, and power supply signal output terminal VBAT_SW exports high level.With should the output of main control unit MCU pulse waveform power output end VBAT_SW_OUT be high level time, the base stage of triode Q2 and emitter are all high level, triode Q2 not conducting, because the base stage of triode Q1 and emitter are all high level, so triode Q1 not conducting, the output of power supply signal output terminal VBAT_SW is low level.Therefore amplified by the control of triode Q1, triode Q2 from the pulse waveform signal of main control unit MCU pulse waveform power output end VBAT_SW_OUT, then be supplied to input circuit by power supply signal output terminal VBAT_SW, then be supplied to main control unit MCU by input circuit.When load switch is not closed, the input end of input circuit is only from the signal of signal power source input end VBAT_SW, therefore main control unit MCU is merely able to the signal obtaining from output control unit output terminal VBAT_SW by input circuit, this signal is pulse waveform signal, and main control unit MCU process does not work; When load switch is input as low level, namely the switching signal power input CON_SW_IN of input circuit can obtain the low level signal of load, this low level signal can drag down the voltage of the pulse waveform signal from signal power source input end VBAT_SW, make the power supply signal output terminal SW_IN of load switch can provide a low level to main control unit MCU, thus main control unit MCU is worked, thus powering load.
When load switch presses down always, then communication bus is sending data always, then this main control unit MCU can not enter sleep pattern.
When all load switches are switched to non-duty from duty, after starting the time of timing setting, be usually set as 15 minutes, then main control unit MCU will enter sleep pattern, namely reach power saving effect.
Claims (6)
1. an energy supply control module for automobile vehicle body controller, comprises accumulator (1), it is characterized in that: also comprise the power circuit (2) for carrying out filtering, step-down to circuit, for the main control unit MCU (3) whether control load (6) works, for the output control unit (4) that the pulse waveform inputted main control unit MCU (3) controls, for controlling the input circuit (5) whether main control unit MCU (3) works, the input end of power circuit (2) is connected with the output terminal of accumulator, the voltage dropping power supply output terminal VCC of power circuit (2) is connected with the power input of main control unit MCU (3), the filter power supply output terminal VBAT_D of power circuit (2) is connected with the filter power supply input end VBAT_D of output control unit (4), the pulse waveform power input VBAT_SW_OUT of output control unit (4) is connected with the pulse waveform power output end VBAT_SW_OUT of main control unit MCU (3), the power supply signal output terminal VBAT_SW of output control unit (4) is connected with the signal power source input end VBAT_SW of input circuit (5), the switching signal power input CON_SW_IN of input circuit (5) is connected with load switch (7), the power supply signal output terminal SW_IN of input circuit (5) is connected with the power supply signal input end of main control unit MCU (3), the power supply signal output terminal of main control unit MCU (3) connects load (6).
2. the energy supply control module of automobile vehicle body controller according to claim 1, is characterized in that: power circuit (2) comprises isolating diode D1, isolating diode D2, filter capacitor C6 and produces the DC_DC circuit of main control unit MCU (3) required voltage; DC_DC circuit is provided with voltage dropping power supply output terminal VCC; The anode of isolating diode D1 and the positive pole of accumulator connect, and the negative electrode of isolating diode D1 and the input end of DC_DC circuit connect; The anode of isolating diode D2 connects the anode of isolating diode D1, and the negative electrode of isolating diode D2 connects the negative electrode of isolating diode D1; The voltage dropping power supply output terminal VCC of DC_DC circuit connects the power input of main control unit MCU (3).
3. the energy supply control module of automobile vehicle body controller according to claim 2, it is characterized in that: described DC_DC circuit comprises power supply chip U1, between the input end of power supply chip U1 and ground, be arranged in parallel filter capacitor C7, filter capacitor C8 and electrochemical capacitor C3; The filter capacitor C4 be arranged in parallel between the output terminal of power supply chip U1 and ground and filter capacitor C5; Electrochemical capacitor C3 anode is provided with filter power supply output terminal VBAT_D.
4. the energy supply control module of automobile vehicle body controller according to claim 1 and 2, is characterized in that: output control unit (4) comprises triode Q2, partially value resistance R5, partially value resistance R7, partially value resistance R9, filter capacitor C16, triode Q1, divider resistance R10, stabilivolt Z1, filter capacitor C15, filter power supply input end VBAT_D, pulse waveform power input VBAT_SW_OUT, pulse waveform power input VBAT_SW_OUT; The collector of triode Q2 accesses filter power supply output terminal VBAT_D by inclined value resistance R5, R7 of series winding; The base stage of triode Q2 meets the pulse waveform power input VBAT_SW_OUT of main control unit MCU (3) by inclined value resistance R9; Between the base stage that filter power supply C16 is connected to triode Q2 and ground; The grounded emitter of triode Q2; The collector of triode Q1 meets filter power supply output terminal VBAT_D; The base stage of triode Q1 is connected on the link of value resistance R5 and inclined value resistance R7 partially; Between the emitter that divider resistance R10 and filter capacitor C15 is arranged on triode Q1 and ground; Divider resistance R10 and filter capacitor C15 is in parallel; The anode of filter capacitor C15 is provided with pulse waveform power input VBAT_SW_OUT.
5. the energy supply control module of automobile vehicle body controller according to claim 4, it is characterized in that: output control unit also comprises stabilivolt Z1 in (4), the negative electrode of stabilivolt Z1 is connected with the collector of triode Q1, and the sun of stabilivolt Z1 is connected with the emitter of triode Q1.
6. the energy supply control module of automobile vehicle body controller according to claim 4, it is characterized in that: input circuit (5) comprises resistance R55, resistance R58, resistance R62, electric capacity C37, resistance R55, resistance R58, resistance is arranged in series successively between the signal power source input end VBAT_SW and ground of input circuit (5), link between resistance R55 and resistance R58 is provided with the switching signal power input CON_SW_IN connecting load switch (7), electric capacity C37 is arranged in parallel the two ends at resistance R62, the anode of electric capacity C37 is provided with the power supply signal input end SW_IN connecting main control unit MCU (3) power supply signal input end.
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| CN201420825368.7U CN204256447U (en) | 2014-12-23 | 2014-12-23 | A kind of energy supply control module of automobile vehicle body controller |
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| CN201420825368.7U CN204256447U (en) | 2014-12-23 | 2014-12-23 | A kind of energy supply control module of automobile vehicle body controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106934877A (en) * | 2017-05-11 | 2017-07-07 | 华晨汽车集团控股有限公司 | Automobile information tape deck |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106934877A (en) * | 2017-05-11 | 2017-07-07 | 华晨汽车集团控股有限公司 | Automobile information tape deck |
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