CN203104012U - Intelligent switch on/off power supply module for automobile - Google Patents
Intelligent switch on/off power supply module for automobile Download PDFInfo
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- CN203104012U CN203104012U CN 201220739548 CN201220739548U CN203104012U CN 203104012 U CN203104012 U CN 203104012U CN 201220739548 CN201220739548 CN 201220739548 CN 201220739548 U CN201220739548 U CN 201220739548U CN 203104012 U CN203104012 U CN 203104012U
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Abstract
The utility model provides an intelligent switch on/off power supply module for automobile, which comprises a storage battery and a power input circuit. The power input circuit is connected with the output end of the storage battery and generates voltage output required by automobile electronic equipment. The power supply module also comprises a microprocessor, an output control unit and an output detection unit, wherein the output detection unit detects load signal output of an automobile bus and is connected with the microprocessor, the microprocessor receives signals output by the output detection unit, generates control signals and is connected with the output control unit, and the control unit receives the control signals of the microprocessor and controls the power input circuit.
Description
Technical field
The utility model relates to field of power supplies, particularly a kind of automobile intelligent switch power module.
Background technology
Along with improving constantly of people's living standard, automobile receives much attention with the characteristics of himself, becomes indispensable trip instrument in people's life, the continuous increase and the upgrading of automobile electronics, more and more comfortable change of automotive electronics and hommization, wherein very important is power management.
Automotive electronics uses storage battery power supply, and the output of storage battery generates by the DC-DC step-down and meets the 5V power supply that the automobile microprocessor uses, under the control of microprocessor, for other vehicle electronics provide power supply.
Automobile power source control circuit electricity saving performance in the past is poor, and as not pressing when switch key, the power supply of its sample circuit is a direct power supply, has also increased the working temperature of product virtually simultaneously at the electric weight of battery consumption.And in order to solve that heat dissipation problem must adopt large-area fin and the area and the cost that have increased the PCB panel.
The utility model content
The utility model provides a kind of power module of automobile intelligent switch for solving the deficiency of present automobile power source control.
The utility model solves by following scheme: a kind of power module of automobile intelligent switch, comprise storage battery and power supply input circuit, the output that described power supply input circuit connects storage battery produces the required voltage output of automotive electronics, also comprises microprocessor, output control unit and output detecting unit;
The load signal output that described output detecting unit detects on the automobile bus connects described microprocessor;
The output signal generation control signal that described microprocessor receives described output detecting unit connects described output control unit;
Described control unit receives described microprocessor control signal and controls described power supply input circuit.
Further, in the power module of above-mentioned automobile intelligent switch: described power supply input circuit comprises isolating diode D1, filter capacitor C1 and produces the DC_DC circuit of microprocessor required voltage;
The anode of described isolating diode D1 connects the positive pole of described storage battery, and the negative electrode of described isolating diode D1 is by described filter capacitor C1 ground connection; The negative electrode of described isolating diode D1 is the power supply output of storage battery;
The negative electrode of the described isolating diode D1 of input termination of described DC_DC circuit, the power input of the described microprocessor of output termination of described DC_DC circuit.
Further, in the power module of above-mentioned automobile intelligent switch: described DC_DC circuit comprises low-power step-down module, voltage stabilizing didoe D2, filter capacitor C2, C3, C4, C5 and pressure regulation chip U1; Input DC power connects described low-power step-down module;
Described voltage stabilizing didoe D2 be arranged on and low-power step-down module output between;
The output end of pressure-stabilizing of described voltage stabilizing didoe D2 connects the input of described pressure regulation chip U1;
Be arranged in parallel described filter power supply C2 and C3 between the input of described pressure regulation chip U1 and the ground; Be arranged in parallel described filter power supply C4 and C5 between the output of described pressure regulation chip U1 and the ground.
Further, in the power module of above-mentioned automobile intelligent switch: described output control unit comprises triode Q2, is worth resistance R 7, R8, R9, filter capacitor C8 partially;
The collector electrode of described triode Q2 is by the inclined to one side value resistance R 7 of polyphone, the output that R8 inserts described input power supply;
The base stage of described triode Q2 connects described microprocessor control signal output by described inclined to one side value resistance R 9; Described filter power supply C8 is connected between the base stage and ground of described triode Q2; The grounded emitter of described triode Q2.
Further, in the power module of above-mentioned automobile intelligent switch: described output detecting unit comprises triode Q1, divider resistance R10, R11, R12, filter capacitor C7, C9;
The collector electrode of described triode Q1 connects the output of described input power supply;
The base stage of described triode Q1 connects the link of described inclined to one side value resistance R 7 and inclined to one side value resistance R 8;
Be provided with divider resistance R10 and filter capacitor C7 between the emitter of described triode Q1 and the ground, divider resistance R11 and R12 polyphone back are in parallel with described divider resistance R10 and filter capacitor C7, and filter power supply C9 is in parallel with described divider resistance R1.
Further, in the power module of above-mentioned automobile intelligent switch: also comprise diode D4 in described output detecting unit, the negative electrode of described diode D4 links to each other with the collector and emitter of described triode Q1 respectively with anode.。
The utility model utilizes the output detecting unit to detect whether load is arranged under microprocessor control owing to adopted output detecting unit and output control unit, if there is not load to be in sleep state to save electric energy by output control unit control power supply.
Below by specific embodiment contrast accompanying drawing the technical solution of the utility model is further illustrated.
Description of drawings:
Fig. 1 is a theory diagram of the present utility model.
Fig. 2 is the utility model embodiment 1 input power circuit principle figure.
Fig. 3 is the utility model embodiment 1 output control circuit schematic diagram.
Embodiment:
The technical problem that the utility model embodiment will solve provides a kind of energy supply control module and provides reliable to be reached for in-vehicle electronic system, may command, low-power consumption and cheap power supply, the utility model provides above-mentioned energy supply control module in order to achieve the above object.
The scheme of this real embodiment is as shown in Figure 1, the input circuit that comprises storage battery, MCU, output control unit and output detecting unit, storage battery by the input power supply produce car electrics required various power supplys, wherein first-selected, export to main control unit MCU through producing the 5V direct current after the pressure regulation of pressure regulation part, this is a DC_DC circuit, it is converted to the required stable 5V direct current of MCU with the 12V direct current of storage battery output, and output control unit and output detecting unit come respectively the output and the input of main control unit to be controlled and monitored.
As shown in Figure 2, power supply input circuit comprises the DC_DC circuit of isolating diode D1, filter capacitor C1 and generation microprocessor required voltage;
The anode of isolating diode D1 connects the positive pole of described storage battery, and the negative electrode of isolating diode D1 is by described filter capacitor C1 ground connection; The negative electrode of isolating diode D1 is the power supply output of storage battery;
The negative electrode of the described isolating diode D1 of input termination of DC_DC circuit, the power input of the described microprocessor of output termination of DC_DC circuit.
The DC_DC circuit comprises low-power step-down module, voltage stabilizing didoe D2, filter capacitor C2, C3, C4, C5 and pressure regulation chip U1; Input DC power connects described low-power step-down module;
Voltage stabilizing didoe D2 be arranged on and low-power step-down module output between;
The output end of pressure-stabilizing of voltage stabilizing didoe D2 connects the input of pressure regulation chip U1;
Be arranged in parallel described filter power supply C2 and C3 between the input of pressure regulation chip U1 and the ground; Be arranged in parallel described filter power supply C4 and C5 between the output of pressure regulation chip U1 and the ground.
In Fig. 2, the VBAT positive pole of connecting with the mains, by the D1 diode, 6 and current-limiting resistance R1-R6 together through the pressure regulation part, through voltage stabilizing didoe D2 voltage clamp is arrived in the range of nominal tension of diode, then by filter capacitor C1, C2 enters the input of pressure regulation chip U1 again, output output VCC is a 5.0V voltage, offers the MCU power supply.
Output control unit and output detecting unit as shown in Figure 3, output control unit comprises triode Q2, is worth resistance R 7, R8, R9, filter capacitor C8 partially;
The collector electrode of triode Q2 is by the inclined to one side value resistance R 7 of polyphone, the output that R8 inserts described input power supply;
The base stage of triode Q2 connects described microprocessor control signal output by described inclined to one side value resistance R 9; Described filter power supply C8 is connected between the base stage and ground of described triode Q2; The grounded emitter of triode Q2.
The output detecting unit comprises triode Q1, divider resistance R10, R11, R12, filter capacitor C7, C9;
The collector electrode of triode Q1 connects the output of described input power supply;
The base stage of triode Q1 connects the link of described inclined to one side value resistance R 7 and inclined to one side value resistance R 8;
Be provided with divider resistance R10 and filter capacitor C7 between the emitter of triode Q1 and the ground, divider resistance R11 and R12 polyphone back are in parallel with described divider resistance R10 and filter capacitor C7, and filter power supply C9 is in parallel with divider resistance R1.In addition, also comprise diode D4 in the output detecting unit, the negative electrode of diode D4 links to each other with the collector and emitter of described triode Q1 respectively with anode.
Output control unit one terminates to the output of main control unit MCU, receives the input power supply by VBAT_D, realizes the control output control to main control unit MCU.
Output detecting unit one terminates to the input of main control unit MCU, receives the input power supply by VBAT_D, realizes the control input control to main control unit MCU.
After being positioned at the communication bus key switch and pressing, after main control unit MCU detects switch input signal, open VABT_SW, this moment, power supply will enter mode of operation, press down when being positioned at the communication bus key switch always, then communication bus is sending data always, then this power supply will can not enter sleep pattern: switch to not operating state when being positioned at the communication bus key switch from operating state, pick up counting after 4 seconds, power supply will enter sleep pattern, then this power supply will enter sleep state, i.e. energy-saving mode.
As shown in Figure 3, the power supply output control unit mainly is to receive the Q1(PNP triode by VBAT_D) emitter, base stage is received the Q2(NPN triode through resistance) collector electrode, base stage is received the control port (VBAT_SW_OUT) of MCU through resistance, thereby controls the output waveform of VBAT_SW.The output detecting unit carries out feedback monitoring at the impulse waveform of VBAT_SW, judges whether distortion of output waveform.
(this switch is the band communication bus) after MCU detects switch input signal, and opens VABT_SW after key switch is pressed, and the VABT_LED power supply also can be opened certainly, and the LED that works this moment can light.
When key switch presses down always, then communication bus is sending data always, and then this power supply can not enter sleep pattern.
When key switch switches to not operating state from operating state, after 4 seconds that picked up counting, then this power supply will enter sleep pattern, promptly reach power saving effect
Claims (6)
1. the power module of an automobile intelligent switch, comprise storage battery and power supply input circuit, the output that described power supply input circuit connects storage battery produces the required voltage output of automotive electronics, it is characterized in that: also comprise microprocessor, output control unit and output detecting unit;
The load signal output that described output detecting unit detects on the automobile bus connects described microprocessor;
The output signal generation control signal that described microprocessor receives described output detecting unit connects described output control unit;
Described control unit receives described microprocessor control signal and controls described power supply input circuit.
2. the power module of automobile intelligent switch according to claim 1 is characterized in that: described power supply input circuit comprises isolating diode D1, filter capacitor C1 and produces the DC_DC circuit of microprocessor required voltage;
The anode of described isolating diode D1 connects the positive pole of described storage battery, and the negative electrode of described isolating diode D1 is by described filter capacitor C1 ground connection; The negative electrode of described isolating diode D1 is the power supply output of storage battery;
The negative electrode of the described isolating diode D1 of input termination of described DC_DC circuit, the power input of the described microprocessor of output termination of described DC_DC circuit.
3. the power module of automobile intelligent switch according to claim 2 is characterized in that: described DC_DC circuit comprises low-power step-down module, voltage stabilizing didoe D2, filter capacitor C2, C3, C4, C5 and pressure regulation chip U1; Input DC power connects described low-power step-down module;
Described voltage stabilizing didoe D2 be arranged on and low-power step-down module output between;
The output end of pressure-stabilizing of described voltage stabilizing didoe D2 connects the input of described pressure regulation chip U1;
Be arranged in parallel described filter power supply C2 and C3 between the input of described pressure regulation chip U1 and the ground; Be arranged in parallel described filter power supply C4 and C5 between the output of described pressure regulation chip U1 and the ground.
4. the power module of automobile intelligent switch according to claim 3 is characterized in that: described output control unit comprises triode Q2, is worth resistance R 7, R8, R9, filter capacitor C8 partially;
The collector electrode of described triode Q2 is by the inclined to one side value resistance R 7 of polyphone, the output that R8 inserts described input power supply;
The base stage of described triode Q2 connects described microprocessor control signal output by described inclined to one side value resistance R 9; Described filter power supply C8 is connected between the base stage and ground of described triode Q2; The grounded emitter of described triode Q2.
5. the power module of automobile intelligent switch according to claim 4 is characterized in that: described output detecting unit comprises triode Q1, divider resistance R10, R11, R12, filter capacitor C7, C9;
The collector electrode of described triode Q1 connects the output of described input power supply;
The base stage of described triode Q1 connects the link of described inclined to one side value resistance R 7 and inclined to one side value resistance R 8;
Be provided with divider resistance R10 and filter capacitor C7 between the emitter of described triode Q1 and the ground, divider resistance R11 and R12 polyphone back are in parallel with described divider resistance R10 and filter capacitor C7, and filter power supply C9 is in parallel with described divider resistance R1.
6. the power module of automobile intelligent switch according to claim 5, it is characterized in that: also comprise diode D4 in described output detecting unit, the negative electrode of described diode D4 links to each other with the collector and emitter of described triode Q1 respectively with anode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220739548 CN203104012U (en) | 2012-12-28 | 2012-12-28 | Intelligent switch on/off power supply module for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220739548 CN203104012U (en) | 2012-12-28 | 2012-12-28 | Intelligent switch on/off power supply module for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203104012U true CN203104012U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220739548 Withdrawn - After Issue CN203104012U (en) | 2012-12-28 | 2012-12-28 | Intelligent switch on/off power supply module for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203104012U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078370A (en) * | 2012-12-28 | 2013-05-01 | 昌辉汽车电气系统（安徽）有限公司 | Power module of automobile intelligent switch |
| CN104953822A (en) * | 2015-07-10 | 2015-09-30 | 广西师范大学 | Stable-voltage power supply circuit of vehicle-mounted controller and stable-voltage power supply device of vehicle-mounted controller |
-
2012
- 2012-12-28 CN CN 201220739548 patent/CN203104012U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078370A (en) * | 2012-12-28 | 2013-05-01 | 昌辉汽车电气系统（安徽）有限公司 | Power module of automobile intelligent switch |
| CN103078370B (en) * | 2012-12-28 | 2015-05-20 | 昌辉汽车电气系统（安徽）有限公司 | Power module of automobile intelligent switch |
| CN104953822A (en) * | 2015-07-10 | 2015-09-30 | 广西师范大学 | Stable-voltage power supply circuit of vehicle-mounted controller and stable-voltage power supply device of vehicle-mounted controller |
| CN104953822B (en) * | 2015-07-10 | 2018-05-29 | 广西师范大学 | Vehicle Controller voltage stabilizing power supplying circuit and Vehicle Controller voltage stabilizing supply electric installation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130731 Effective date of abandoning: 20150520 |
|
| RGAV | Abandon patent right to avoid regrant |