CN203800918U - Automotive switch adaptation circuit - Google Patents
Automotive switch adaptation circuit Download PDFInfo
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- CN203800918U CN203800918U CN201420152850.9U CN201420152850U CN203800918U CN 203800918 U CN203800918 U CN 203800918U CN 201420152850 U CN201420152850 U CN 201420152850U CN 203800918 U CN203800918 U CN 203800918U
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Abstract
The utility model discloses an automotive switch adaptation circuit. The automotive switch adaptation circuit comprises a sampling circuit, a reverse differential amplification circuit, a positive control and negative control distinguishing signal, an inverting amplifier, a voltage dividing circuit and a switching circuit; the input end of the sampling circuit is connected with the positive pole of an automotive battery or ground through an automotive switch; the output end of the sampling circuit is connected with the input end of the positive control and negative control distinguishing signal through the reverse differential amplification circuit; one path of the positive control and negative control distinguishing signal is connected with one input end of the switching circuit through the inverting amplifier, and the other path of the positive control and negative control distinguishing signal is connected with the other input end of the switching circuit through the voltage dividing circuit; the output end of the voltage dividing circuit is adopted as the output end of the automotive switch adaptation circuit and is used for inputting signals to a back-stage circuit such as a control end of an automotive controller; when the sampling circuit is connected with the ground or the positive pole of an automotive power source through the automotive switch, the output end of the automotive switch adaptation circuit outputs low electric level, when the sampling circuit is suspended, the output end of the circuit outputs high electric level. The automotive switch adaptation circuit of the utility model has the advantages of reasonable circuit, no need for debugging and high versatility, and can be compatible with positive or negative switching signals of the power source.
Description
Technical field
The utility model relates to a kind of automotive controls adapter circuit, and this automotive controls adapter circuit can convert automotive controls to the signal of telecommunication that automobile controller can be identified.
Background technology
Along with the continuous increase of automobile, especially big and medium-sized cities, the discharge of vehicle exhaust has produced serious pollution to environment, in order to reduce pollution, there is the hybrid vehicle of combustion gas as fuels and energy, also there is electric automobile, these automobiles require higher to the control of circuit, also more complicated, the manipulation of switches of an automobile has a lot, what have need to connect high level output signal, what have needs to connect low-level output signal, automobile controller receives after these high level or low level output signal, make and control reaction, if automobile controller is according to dissimilar, the manipulation of switches of different model, specialized designs, the versatility of automobile controller can seem very poor.
Utility model content
The utility model is according to above not enough, a kind of automotive controls adapter circuit is provided, the input of this automotive controls adapter circuit can connect respectively various automobile-used manipulation of switches, no matter this manipulation of switches connects high level signal or connects low level signal, all can convert the signal of telecommunication that unified automobile controller can be identified to.
The technical solution of the utility model is:
A kind of automotive controls adapter circuit, comprising:
Sample circuit, comprises resistance R 1 and resistance R 2, and switch input terminal IN connects positive supply through resistance R 1, resistance R 2;
Backward difference amplifying circuit, comprise amplification circuit Z1A, in-phase input end one tunnel is connected to the common port of R1 and resistance R 2 through resistance R 4, ground GND is arrived through resistance R 5 in another road, inverting input one tunnel is connected to switch input terminal IN through resistance R 3, another road is through the output of resistance R 6 to amplification circuit Z1A, and amplification circuit Z1A is by positive-negative power supply;
Distinguish and just controlling negative control signal, comprise diode D1, diode D2, the negative pole of the positive pole of diode D1 and diode D2 is connected to the output of amplification circuit Z1A;
Inverting amplifier, comprise amplification circuit Z1B, in-phase input end arrives ground GND through resistance R 11, inverting input one tunnel is connected to the positive pole of diode D2 through resistance R 8, another road is through the output of resistance R 10 to amplification circuit Z1B, anodal and negative pole is as the output of inverting amplifier at the corresponding levels through diode D3 for the output of amplification circuit Z1B, and amplification circuit Z1A is by positive-negative power supply;
Bleeder circuit, comprises resistance R 7 and resistance R 9, and the negative pole of diode D1 is through resistance R 7, resistance R 9 to ground GND, and the common port of resistance R 7 and resistance R 9 is connected to the negative pole of diode D3;
Switching circuit, comprises triode Q1, and base stage is connected to the negative pole of diode D3 through resistance R 12, grounded emitter GND, and collector electrode one tunnel is connected to power supply VEE through resistance R 13, and another road is as the output OUT of this automotive controls adapter circuit.
In the time that switch input terminal IN connects high level, the output OUT output high level of this automotive controls adapter circuit, in the time that switch input terminal IN connects low level, the output OUT of this automotive controls adapter circuit also exports high level.
Described power supply VEE and described positive supply share same power supply or share same power supply with for example automobile controller of late-class circuit of described automotive controls adapter circuit.
General principle of the present utility model is:
When switch input terminal IN connects when just controlling switch and connecing high level, form forward pressure reduction by the sampling resistor R1 in sample circuit, this forward pressure reduction is by backward difference amplifying circuit output negative level, this negative level is then by now diode D1 cut-off of diode D2(), be connected to the inverting input of inverting amplifier, because this signal is lower than the in-phase input end of inverting amplifier, the output output high level of inverting amplifier, this high level is the triode Q1 as switch through diode D3 conducting, the emitter OUT output low level of triode Q1, make the MCU of for example automobile controller of late-class circuit read low level,
In the time that switch input terminal IN connects negative control switch and connects low level, form reverse differential pressure by the resistance in sample circuit, this reverse differential pressure is by backward difference amplifying circuit, output forward voltage, this forward voltage is by diode D1 (now diode D2 cut-off) output, enter the triode Q1 of the last conducting of bleeder circuit dividing potential drop as switch, the emitter OUT output low level of triode Q1.
When switch input terminal IN is during in vacant state, the voltage of the positive input of backward difference amplifying circuit is higher than the voltage of inverting input, the output output forward voltage of backward difference amplifying circuit, this forward voltage is by diode D1 (now diode D2 cut-off) output, enter bleeder circuit dividing potential drop, because the multiplication factor of backward difference amplifying circuit is lower, simultaneously, the in-phase input end of backward difference amplifying circuit and the pressure reduction of inverting input are little, undertension after bleeder circuit dividing potential drop is the triode Q1 as switch in conducting, the emitter OUT output high level of triode Q1, thereby make MCU read high level.
The utlity model has circuit rationally, without debugging, highly versatile, the beneficial effect of switching signal that can compatible power supply plus or minus.
Brief description of the drawings
Fig. 1 is electrical schematic diagram of the present utility model.
Embodiment
Now by reference to the accompanying drawings the utility model is further described:
As shown in the figure, as one of embodiment, in figure, R1 is that 11K, R2 are that 24K, R3 are that 10K, R4 are that 10K, R5 are that 10K, R6 are that 10K, R7 are that 1.1K, R8 are that 10K, R9 are that 1.1K, R10 are that 3K, R11 are that 2.2K, R12 are that 1K, R13 are 10K, amplification circuit Z1A is by 12V positive-negative power supply, the optional 12V of power supply VEE or 24V, Vehicular battery selects 24V.
A kind of automotive controls adapter circuit of the utility model, comprising:
Sample circuit, comprises resistance R 1 and resistance R 2, and switch input terminal IN connects positive supply 12V through resistance R 1, resistance R 2;
Backward difference amplifying circuit, comprise amplification circuit Z1A, in-phase input end one tunnel is connected to the common port of R1 and resistance R 2 through resistance R 4, ground GND is arrived through resistance R 5 in another road, inverting input one tunnel is connected to switch input terminal IN through resistance R 3, another road is through the output of resistance R 6 to amplification circuit Z1A, and amplification circuit Z1A is powered by positive-negative power 12V;
Distinguish and just controlling negative control signal, comprise diode D1, diode D2, the negative pole of the positive pole of diode D1 and diode D2 is connected to the output of amplification circuit Z1A;
Inverting amplifier, comprise amplification circuit Z1B, in-phase input end arrives ground GND through resistance R 11, inverting input one tunnel is connected to the positive pole of diode D2 through resistance R 8, another road is through the output of resistance R 10 to amplification circuit Z1B, anodal and negative pole is as the output of inverting amplifier at the corresponding levels through diode D3 for the output of amplification circuit Z1B, and amplification circuit Z1A is by positive-negative power supply;
Bleeder circuit, comprises resistance R 7 and resistance R 9, and the negative pole of diode D1 is through resistance R 7, resistance R 9 to ground GND, and the common port of R7 and resistance R 9 is connected to the negative pole of diode D3;
Switching circuit, comprises triode Q1, and base stage is connected to the negative pole of diode D3 through resistance R 12, grounded emitter GND, and collector electrode one tunnel is connected to power supply VEE through resistance R 13, and another road is as the output OUT of this automotive controls adapter circuit;
In the time that switch input terminal IN meets automotive controls ground connection GND or connect power supply on vehicle anodal, the output OUT of this automotive controls adapter circuit is low level, and in the time that switch input terminal IN is unsettled, the output OUT of this automotive controls adapter circuit is high level.
The late-class circuit of described power supply VEE and described automotive controls adapter circuit shares same power supply, can directly mate.
Claims (2)
1. an automotive controls adapter circuit, is characterized in that, comprising:
Sample circuit, comprises resistance R 1 and resistance R 2, and switch input terminal IN connects positive supply through resistance R 1, resistance R 2;
Backward difference amplifying circuit, comprise amplification circuit Z1A, in-phase input end one tunnel is connected to the common port of R1 and resistance R 2 through resistance R 4, ground GND is arrived through resistance R 5 in another road, inverting input one tunnel is connected to switch input terminal IN through resistance R 3, another road is through the output of resistance R 6 to amplification circuit Z1A, and amplification circuit Z1A is by positive-negative power supply;
Distinguish and just controlling negative control signal, comprise diode D1, diode D2, the negative pole of the positive pole of diode D1 and diode D2 is connected to the output of amplification circuit Z1A;
Inverting amplifier, comprise amplification circuit Z1B, in-phase input end arrives ground GND through resistance R 11, inverting input one tunnel is connected to the positive pole of diode D2 through resistance R 8, another road is through the output of resistance R 10 to amplification circuit Z1B, anodal and negative pole is as the output of inverting amplifier at the corresponding levels through diode D3 for the output of amplification circuit Z1B, and amplification circuit Z1A is by positive-negative power supply;
Bleeder circuit, comprises resistance R 7 and resistance R 9, and the negative pole of diode D1 is through resistance R 7, resistance R 9 to ground GND, and the common port of R7 and resistance R 9 is connected to the negative pole of diode D3;
Switching circuit, comprises triode Q1, and base stage is connected to the negative pole of diode D3 through resistance R 12, grounded emitter GND, and collector electrode one tunnel is connected to power supply VEE through resistance R 13, and another road is as the output OUT of this automotive controls adapter circuit;
In the time that switch input terminal IN meets automotive controls ground connection GND or connect power supply on vehicle anodal, the output OUT of this automotive controls adapter circuit is low level, and in the time that switch input terminal IN is unsettled, the output OUT of this automotive controls adapter circuit is high level.
2. a kind of automotive controls adapter circuit as claimed in claim 1, is characterized in that, the late-class circuit of described power supply VEE and described automotive controls adapter circuit shares same power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152850.9U CN203800918U (en) | 2014-03-31 | 2014-03-31 | Automotive switch adaptation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152850.9U CN203800918U (en) | 2014-03-31 | 2014-03-31 | Automotive switch adaptation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203800918U true CN203800918U (en) | 2014-08-27 |
Family
ID=51383102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420152850.9U Withdrawn - After Issue CN203800918U (en) | 2014-03-31 | 2014-03-31 | Automotive switch adaptation circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203800918U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103916118A (en) * | 2014-03-31 | 2014-07-09 | 杭州普拉格新能源汽车有限公司 | Switch adapter circuit for vehicle |
-
2014
- 2014-03-31 CN CN201420152850.9U patent/CN203800918U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103916118A (en) * | 2014-03-31 | 2014-07-09 | 杭州普拉格新能源汽车有限公司 | Switch adapter circuit for vehicle |
| CN103916118B (en) * | 2014-03-31 | 2017-05-03 | 杭州普拉格新能源汽车有限公司 | Switch adapter circuit for vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUHU BODGE AUTOMOBILE CO., LTD. Free format text: FORMER OWNER: HANGZHOU PULAGE NEW ENERGY AUTOMOBILE CO., LTD. Effective date: 20150625 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150625 Address after: 241300 No. 1, Honghu Road, Nanling Economic Development Zone, Anhui, Wuhu Patentee after: Wuhu Bao Qi automobile making company limited Address before: 311122 No. 355 Shanxi Road, Tianmu, Yuhang District, Zhejiang, Hangzhou Patentee before: Hangzhou Pulage New Energy Automotive Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140827 Effective date of abandoning: 20170503 |
|
| AV01 | Patent right actively abandoned |