CN204495968U - Digital switch circuit automatic detection circuit - Google Patents
Digital switch circuit automatic detection circuit Download PDFInfo
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- CN204495968U CN204495968U CN201520180601.5U CN201520180601U CN204495968U CN 204495968 U CN204495968 U CN 204495968U CN 201520180601 U CN201520180601 U CN 201520180601U CN 204495968 U CN204495968 U CN 204495968U
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- triode
- resistance
- terminal
- circuit
- base stage
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- 238000001514 detection method Methods 0.000 title claims abstract description 11
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a kind of digital switch circuit automatic detection circuit, include triode Q4, Q5, Q6, the emitter of triode Q5 is connected with VBAT terminal, is connected with resistance R6, the other end of resistance R6 is connected with the base stage of triode Q5, the base stage of triode Q5 is connected with resistance R5, and the collector of triode Q5 connects 1N1 terminal by resistance R9; The collector of triode Q4 is connected with the other end of resistance R5, and the base stage of triode Q4 is connected with 1N1H terminal by resistance R3, is connected with resistance R4, and the other end of resistance R4 and the emitter of triode Q4 are altogether; The collector of triode Q6 connects 1N1 terminal, and the base stage of triode Q6 is connected with 1N1L terminal by resistance R7, is connected with resistance R8, and the other end of resistance R8 and the emitter of triode Q6 are altogether.The utility model realizes the automatic detection of multiple digital switch circuit, accurately easy to detect.
Description
Technical field
The utility model relates generally to electronic circuit field, particularly relates to digital switch circuit automatic detection circuit.
Background technology
Digital switch testing circuit is the Acquisition Circuit be in daily use, a lot of road can be used in places such as the control of some automobiles and Industry Control, single circuit board can use tens tunnels, several circuit board group is share and can be reached road up to a hundred, such as factory in actual applications, needs regularly to go to detect these switch Acquisition Circuit to guarantee that product can normally work.At this time our road one tunnel is removed to open switch and is detected obviously to compare and waste time and energy, also out of true.
Utility model content
The utility model object is exactly the defect in order to make up prior art, provides a kind of digital switch circuit automatic detection circuit.
The utility model is achieved through the following technical solutions:
Digital switch circuit automatic detection circuit, it is characterized in that: include two NPN type triode Q4, Q6 and a PNP type triode Q5, the emitter of triode Q5 is connected with VBAT terminal and is connected by node one end with resistance R6, the other end of resistance R6 is connected with the base stage of triode Q5, the base stage of triode Q5 is also connected by node one end with resistance R5, and the collector of triode Q5 connects 1N1 terminal by resistance R9; The collector of triode Q4 is connected with the other end of resistance R5, and the base stage of triode Q4 is connected with 1N1H terminal by resistance R3 and is connected by node one end with resistance R4, and the other end of resistance R4 and the emitter of triode Q4 are altogether; The collector of triode Q6 connects 1N1 terminal, and the base stage of triode Q6 is connected with 1N1L terminal by resistance R7 and is connected by node one end with resistance R8, and the other end of resistance R8 and the emitter of triode Q6 are altogether; Wherein VBAT terminal is connected with power supply, and IN1 terminal accesses on-off circuit input end to be detected, and IN1H, IN1L terminal connects single-chip microcomputer two I/O mouths respectively.
The utility model has the advantages that:
The utility model coordinates the automatic detection that can realize multiple digital switch circuit in actual applications with single-chip microcomputer, accurately easy to detect.
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present utility model.
Fig. 2 is control ground/unsettled on-off circuit schematic diagram.
Fig. 3 is the fiery on-off circuit schematic diagram of control.
Embodiment
As shown in Figure 1, digital switch circuit automatic detection circuit, include two NPN type triode Q4, Q6 and a PNP type triode Q5, the emitter of triode Q5 is connected with VBAT terminal and is connected by node one end with resistance R6, the other end of resistance R6 is connected with the base stage of triode Q5, the base stage of triode Q5 is also connected by node one end with resistance R5, and the collector of triode Q5 connects 1N1 terminal by resistance R9; The collector of triode Q4 is connected with the other end of resistance R5, and the base stage of triode Q4 is connected with 1N1H terminal by resistance R3 and is connected by node one end with resistance R4, and the other end of resistance R4 and the emitter of triode Q4 are altogether; The collector of triode Q6 connects 1N1 terminal, and the base stage of triode Q6 is connected with 1N1L terminal by resistance R7 and is connected by node one end with resistance R8, and the other end of resistance R8 and the emitter of triode Q6 are altogether; Wherein VBAT terminal is connected with power supply, and IN1 terminal accesses on-off circuit input end to be detected, and IN1H, IN1L terminal connects single-chip microcomputer two I/O mouths respectively.
Embodiment
For the control ground/unsettled on-off circuit of Fig. 2, IN1 terminal accesses the switch S 1 of on-off circuit Fig. 2 to be detected, IN1H, IN1L connect single-chip microcomputer two I/O mouths respectively, opening IN1L by Single-chip Controlling holds closedown IN1H to hold, and triode Q6 opens, Q4, Q5 closes, IN1 end is connected to ground, if at this moment single-chip microcomputer reads I1 end in Fig. 2 is low level, so just can judge that this on-off circuit control ground state is normal; Close IN1L and IN1H end, triode Q4/5/6 Close All, at this moment I1 end is vacant state simultaneously, if at this moment single-chip microcomputer reads K1_MCU end is high level, so just can determine that this on-off circuit vacant state is normal.
For the control fire on-off circuit of Fig. 2, IN1 terminal accesses the switch S 8 of on-off circuit Fig. 3 to be detected, IN1H, IN1L connect single-chip microcomputer two I/O mouths respectively, opening IN1H by Single-chip Controlling holds closedown IN1L to hold, triode Q4/5 opens, and Q6 closes, and IN1 end is connected on VBAT, if at this moment single-chip microcomputer reads I1 in Fig. 3 is high level, so just can determine that this on-off circuit control fire state is normal.Above action can be completed by single-chip microcomputer internal processes, so can realize automatic detection in actual applications, convenient, accurately.
Claims (1)
1. digital switch circuit automatic detection circuit, it is characterized in that: include two NPN type triode Q4, Q6 and a PNP type triode Q5, the emitter of triode Q5 is connected with VBAT terminal and is connected by node one end with resistance R6, the other end of resistance R6 is connected with the base stage of triode Q5, the base stage of triode Q5 is also connected by node one end with resistance R5, and the collector of triode Q5 connects 1N1 terminal by resistance R9; The collector of triode Q4 is connected with the other end of resistance R5, and the base stage of triode Q4 is connected with 1N1H terminal by resistance R3 and is connected by node one end with resistance R4, and the other end of resistance R4 and the emitter of triode Q4 are altogether; The collector of triode Q6 connects 1N1 terminal, and the base stage of triode Q6 is connected with 1N1L terminal by resistance R7 and is connected by node one end with resistance R8, and the other end of resistance R8 and the emitter of triode Q6 are altogether; Wherein VBAT terminal is connected with power supply, and IN1 terminal accesses on-off circuit input end to be detected, and IN1H, IN1L terminal connects single-chip microcomputer two I/O mouths respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520180601.5U CN204495968U (en) | 2015-03-28 | 2015-03-28 | Digital switch circuit automatic detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520180601.5U CN204495968U (en) | 2015-03-28 | 2015-03-28 | Digital switch circuit automatic detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204495968U true CN204495968U (en) | 2015-07-22 |
Family
ID=53575273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520180601.5U Expired - Fee Related CN204495968U (en) | 2015-03-28 | 2015-03-28 | Digital switch circuit automatic detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204495968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730454A (en) * | 2015-03-28 | 2015-06-24 | 安徽阿瑞特汽车电子科技有限公司 | Automatic detection circuit for digital switch circuit |
-
2015
- 2015-03-28 CN CN201520180601.5U patent/CN204495968U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730454A (en) * | 2015-03-28 | 2015-06-24 | 安徽阿瑞特汽车电子科技有限公司 | Automatic detection circuit for digital switch circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 |