CN204028275U - A kind of radio reception automatic antenna power supply state testing circuit - Google Patents
A kind of radio reception automatic antenna power supply state testing circuit Download PDFInfo
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- CN204028275U CN204028275U CN201420457515.XU CN201420457515U CN204028275U CN 204028275 U CN204028275 U CN 204028275U CN 201420457515 U CN201420457515 U CN 201420457515U CN 204028275 U CN204028275 U CN 204028275U
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Abstract
The utility model relates to a kind of radio reception automatic antenna power supply state testing circuit, comprises the output control circuit, output open circuit testing circuit and the open circuit indicating circuit that connect successively, also comprises short-circuit detecting circuit and short circuit indicating circuit; When exporting generation open circuit, open detection circuit work, and drive corresponding light emitting diode to carry out light prompt; When output is short-circuited, short-circuit detecting circuit work, and drive corresponding light emitting diode to carry out light prompt.Radio reception automatic antenna power supply state testing circuit of the present utility model can judge that whether the fault of vehicle-mounted radio device by the power supply of automatic antenna, open circuit occurs or short circuit causes exactly, thus reduce the malfunction elimination workload of maintenance personal, improve the maintenance efficiency of vehicle-mounted radio equipment.
Description
Technical field
The utility model relates to reception antenna for electrical domain, is specifically related to a kind of radio reception automatic antenna power supply state testing circuit.
Background technology
At present, a lot of automobile is equipped with radio reception automatic antenna, when vehicle-mounted radio device is opened, radio reception automatic antenna auto-extending, when vehicle-mounted radio device is closed, radio reception automatic antenna is packed up automatically.The flexible DC voltage control being about 12V exported by vehicle-mounted radio device of radio reception automatic antenna.
When vehicle-mounted radio device breaks down, maintenance personal needs to investigate one by one each parts of vehicle-mounted radio device, and malfunction elimination workload is large, and efficiency is low.
One of reason that vehicle-mounted radio plant failure occurs is radio reception automatic antenna operation irregularity, and it is abnormal to cause the main cause of radio reception automatic antenna operation irregularity to be that its power supply occurs, and the control voltage as radio reception automatic antenna is short-circuited, open circuit etc. is abnormal.
Utility model content
The purpose of this utility model overcomes shortcomings and deficiencies of the prior art, provides a kind of radio reception automatic antenna power supply state testing circuit, improves the malfunction elimination efficiency of vehicle-mounted radio device.
The purpose of this utility model is achieved through the following technical solutions: a kind of radio reception automatic antenna power supply state testing circuit, comprising:
Output control circuit, its voltage input end VIN connects the emitter of triode Q10 and one end of resistance R10 respectively, the base stage of another termination triode Q10 of resistance R10, connect the positive pole of diode D10 after the collector series resistance R12 of triode Q10, the negative pole of diode D10 is as antenna control voltage output terminal VOUT; The base stage of triode Q10 also connects the collector of triode Q11 after resistance in series R11; The grounded emitter of triode Q11, base stage meets control end ANT_ON;
Output open circuit testing circuit, comprise triode Q20, resistance R21, resistance R22, resistance R23, triode Q21 and resistance R24, the emitter of triode Q20 is connected with the collector of triode Q10, be connected with the negative pole of diode D10 after base series resistor R21, be connected with the base stage of triode Q21 respectively after collector series resistance R22, one end of resistance R23 connects, the other end ground connection of resistance R23; The grounded emitter of triode Q21, meets power supply VCC after collector series resistance R24, collector also detects output terminal as open circuit and is connected with the input control end of open circuit indicating circuit;
Open circuit indicating circuit, comprise triode Q22, resistance R25, resistance R26 and LED 20, the base stage of triode Q22 is connected with the collector of triode Q21 as the input control end of open circuit indicating circuit, is also connected with one end of resistance R26, the other end ground connection of resistance R26 simultaneously; The grounded emitter of triode Q22; The positive pole of sending and receiving optical diode LED20 after power supply VCC resistance in series R25, the negative pole of LED 20 connects the collector of triode Q22.
As preferably, described radio reception automatic antenna power supply state testing circuit also comprises:
Output short-circuit testing circuit, comprises resistance R30, diode D30, resistance R31, resistance R32, triode Q31 and resistance R33, a termination control end ANT_ON of resistance R30, and the other end connects the positive pole of diode D30 and one end of resistance R31 respectively; The negative pole of diode D30 connects the negative pole of diode D10; The other end of resistance R31 connects the base stage of triode Q31 and one end of resistance R32 respectively; The grounded emitter of triode Q31, meets power supply VCC after collector series resistance R33, collector is also connected with the input control end of short circuit indicating circuit as short-circuit detecting output terminal;
Short circuit indicating circuit, comprise triode Q32, resistance R34, resistance R35 and LED 30, the base stage of triode Q32 is connected with the collector of triode Q31 as the input control end of short circuit indicating circuit, is also connected with one end of resistance R35, the other end ground connection of resistance R35 simultaneously; The grounded emitter of triode Q32; The positive pole of sending and receiving optical diode LED30 after power supply VCC resistance in series R34, the negative pole of LED 30 connects the collector of triode Q32.
As preferably, described triode Q10 and triode Q20 is PNP triode, and described triode Q11, triode Q21 and triode Q22 are NPN triode.
As preferably, described triode Q31 and triode Q32 is NPN triode.
As preferably, described diode D10 conduction voltage drop is 0.7V.
As preferably, described diode D30 conduction voltage drop is 0.7V.
The utility model comprises following advantage and beneficial effect compared to existing technology:
(1) the utility model is by arranging output open circuit testing circuit and open circuit indicating circuit, whether timely detection radio reception automatic antenna power supply state is open circuit, detect radio reception automatic antenna power be in open-circuit condition time switched-on light emitting diodes LED20 carry out light prompt.
(2) the utility model is by arranging output short-circuit testing circuit and short circuit indicating circuit, whether timely detection radio reception automatic antenna power supply state is short circuit, detect radio reception automatic antenna power be in short-circuit condition time switched-on light emitting diodes LED30 carry out light prompt.
(3) the utility model is when vehicle-mounted radio device finds fault, whether the fault helping maintenance personal to judge vehicle-mounted radio device is quickly and accurately occurred by the power supply of automatic antenna that open circuit or short circuit cause, reduce the malfunction elimination workload of maintenance personal, improve maintenance efficiency.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of radio reception automatic antenna power supply state testing circuit in embodiment.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment
As shown in Figure 1, a kind of radio reception automatic antenna power supply state testing circuit, comprises output control circuit, output open circuit testing circuit, open circuit indicating circuit, output short-circuit testing circuit and short circuit indicating circuit.
The voltage input end VIN of described output control circuit connects the emitter of PNP triode Q10 and one end of resistance R10 respectively, the base stage of another termination PNP triode Q10 of resistance R10, connect the positive pole of diode D10 after the collector series resistance R12 of PNP triode Q10, the negative pole of diode D10 is as antenna control voltage output terminal VOUT; The base stage of PNP triode Q10 also connects the collector of NPN triode Q11 after resistance in series R11; The grounded emitter of NPN triode Q11, base stage meets control end ANT_ON.Described diode D10 conduction voltage drop is 0.7V.
Described output open circuit testing circuit comprises PNP triode Q20, resistance R21, resistance R22, resistance R23, NPN triode Q21 and resistance R24, the emitter of PNP triode Q20 is connected with the collector of PNP triode Q10, be connected with the negative pole of PNP diode D10 after base series resistor R21, be connected with the base stage of NPN triode Q21 respectively after collector series resistance R22, one end of resistance R23 connects, the other end ground connection of resistance R23; The grounded emitter of NPN triode Q21, meets power supply VCC after collector series resistance R24, collector also detects output terminal as open circuit and is connected with the input control end of open circuit indicating circuit.
Described open circuit indicating circuit comprises NPN triode Q22, resistance R25, resistance R26 and LED 20, the base stage of NPN triode Q22 is connected with the collector of NPN triode Q21 as the input control end of open circuit indicating circuit, also be connected with one end of resistance R26, the other end ground connection of resistance R26 simultaneously; The grounded emitter of NPN triode Q22; The positive pole of sending and receiving optical diode LED20 after power supply VCC resistance in series R25, the negative pole of LED 20 connects the collector of NPN triode Q22.Described power supply VCC is 5V DC power supply.
Described output short-circuit testing circuit comprises a termination control end ANT_ON of resistance R30, diode D30, resistance R31, resistance R32, NPN triode Q31 and resistance R33, resistance R30, and the other end connects the positive pole of diode D30 and one end of resistance R31 respectively; The negative pole of diode D30 connects the negative pole of diode D10; The other end of resistance R31 connects the base stage of NPN triode Q31 and one end of resistance R32 respectively; The grounded emitter of NPN triode Q31, meets power supply VCC after collector series resistance R33, collector is also connected with the input control end of short circuit indicating circuit as short-circuit detecting output terminal.Described diode D30 is conduction voltage drop is 0.7V.
Described short circuit indicating circuit comprises NPN triode Q32, resistance R34, resistance R35 and LED 30, the base stage of NPN triode Q32 is connected with the collector of NPN triode Q31 as the input control end of short circuit indicating circuit, also be connected with one end of resistance R35, the other end ground connection of resistance R35 simultaneously; The grounded emitter of NPN triode Q32; The positive pole of sending and receiving optical diode LED30 after power supply VCC resistance in series R34, the negative pole of LED 30 connects the collector of NPN triode Q32.
Described voltage input end VIN connects 14V voltage.Described control end ANT_ON is 5V level after vehicle-mounted radio device is opened.The normal drive current of vehicle-mounted radio reception automatic antenna is about 50mA.
After vehicle-mounted radio device is opened, described NPN triode Q11, the equal conducting of PNP triode Q10, input voltage VIN exports after resistance R12 current limliting and diode D10 step-down, and antenna control voltage output terminal VOUT is 12.8V; The PNP triode Q20 of described output open circuit testing circuit and the equal conducting of NPN triode Q21, NPN triode Q22 ends, and LED 20 does not work; The diode D30 of described output short-circuit testing circuit ends, NPN triode Q31 conducting, and NPN triode Q32 ends, and LED 30 does not work.
When described antenna control voltage output terminal VOUT is in open-circuit condition (VOUT is unsettled, and drive current is 0), the cathode voltage of described diode D10 is 13.3V; PNP triode Q20 and the NPN triode Q21 of described output open circuit testing circuit all end, NPN triode Q22 conducting, and LED20 is bright; The diode D30 of described output short-circuit testing circuit ends, NPN triode Q31 conducting, and NPN triode Q32 ends, and LED 30 does not work.
When described antenna control voltage output terminal VOUT is in short-circuit condition (VOUT=0), the PNP triode Q20 of described output open circuit testing circuit and the equal conducting of NPN triode Q21, NPN triode Q22 ends, and LED 20 does not work; The NPN triode Q31 of described output short-circuit testing circuit ends, and NPN triode Q32 conducting, LED 30 is bright.
The above embodiment only have expressed embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (4)
1. a radio reception automatic antenna power supply state testing circuit, is characterized in that, comprising:
Output control circuit, its voltage input end VIN connects the emitter of triode Q10 and one end of resistance R10 respectively, the base stage of another termination triode Q10 of resistance R10, connect the positive pole of diode D10 after the collector series resistance R12 of triode Q10, the negative pole of diode D10 is as antenna control voltage output terminal VOUT; The base stage of triode Q10 also connects the collector of triode Q11 after resistance in series R11; The grounded emitter of triode Q11, base stage meets control end ANT_ON;
Output open circuit testing circuit, comprise triode Q20, resistance R21, resistance R22, resistance R23, triode Q21 and resistance R24, the emitter of triode Q20 is connected with the collector of triode Q10, be connected with the negative pole of diode D10 after base series resistor R21, be connected with the base stage of triode Q21 respectively after collector series resistance R22, one end of resistance R23 connects, the other end ground connection of resistance R23; The grounded emitter of triode Q21, meets power supply VCC after collector series resistance R24, collector also detects output terminal as open circuit and is connected with the input control end of open circuit indicating circuit;
Open circuit indicating circuit, comprise triode Q22, resistance R25, resistance R26 and LED 20, the base stage of triode Q22 is connected with the collector of triode Q21 as the input control end of open circuit indicating circuit, is also connected with one end of resistance R26, the other end ground connection of resistance R26 simultaneously; The grounded emitter of triode Q22; The positive pole of sending and receiving optical diode LED20 after power supply VCC resistance in series R25, the negative pole of LED 20 connects the collector of triode Q22.
2. radio reception automatic antenna power supply state testing circuit according to claim 1, is characterized in that, also comprise:
Output short-circuit testing circuit, comprises resistance R30, diode D30, resistance R31, resistance R32, triode Q31 and resistance R33, a termination control end ANT_ON of resistance R30, and the other end connects the positive pole of diode D30 and one end of resistance R31 respectively; The negative pole of diode D30 connects the negative pole of diode D10; The other end of resistance R31 connects the base stage of triode Q31 and one end of resistance R32 respectively; The grounded emitter of triode Q31, meets power supply VCC after collector series resistance R33, collector is also connected with the input control end of short circuit indicating circuit as short-circuit detecting output terminal;
Short circuit indicating circuit, comprise triode Q32, resistance R34, resistance R35 and LED 30, the base stage of triode Q32 is connected with the collector of triode Q31 as the input control end of short circuit indicating circuit, is also connected with one end of resistance R35, the other end ground connection of resistance R35 simultaneously; The grounded emitter of triode Q32; The positive pole of sending and receiving optical diode LED30 after power supply VCC resistance in series R34, the negative pole of LED 30 connects the collector of triode Q32.
3. radio reception automatic antenna power supply state testing circuit according to claim 1, it is characterized in that: described triode Q10 and triode Q20 is PNP triode, described triode Q11, triode Q21 and triode Q22 are NPN triode.
4. radio reception automatic antenna power supply state testing circuit according to claim 2, is characterized in that: described triode Q31 and triode Q32 is NPN triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420457515.XU CN204028275U (en) | 2014-08-13 | 2014-08-13 | A kind of radio reception automatic antenna power supply state testing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420457515.XU CN204028275U (en) | 2014-08-13 | 2014-08-13 | A kind of radio reception automatic antenna power supply state testing circuit |
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| CN204028275U true CN204028275U (en) | 2014-12-17 |
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| CN201420457515.XU Expired - Fee Related CN204028275U (en) | 2014-08-13 | 2014-08-13 | A kind of radio reception automatic antenna power supply state testing circuit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991542A (en) * | 2017-11-30 | 2018-05-04 | 华南理工大学 | A kind of active antenna detection device and its detection method |
| CN109150203A (en) * | 2018-07-13 | 2019-01-04 | 上海移远通信技术股份有限公司 | A kind of antenna switching circuit and antenna system |
| CN112834831A (en) * | 2021-02-18 | 2021-05-25 | 中国第一汽车股份有限公司 | Antenna state detection circuit |
| CN114596762A (en) * | 2022-03-03 | 2022-06-07 | 华北电力大学 | Power electronic teaching experiment table wiring error checking equipment and method |
-
2014
- 2014-08-13 CN CN201420457515.XU patent/CN204028275U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991542A (en) * | 2017-11-30 | 2018-05-04 | 华南理工大学 | A kind of active antenna detection device and its detection method |
| CN109150203A (en) * | 2018-07-13 | 2019-01-04 | 上海移远通信技术股份有限公司 | A kind of antenna switching circuit and antenna system |
| CN109150203B (en) * | 2018-07-13 | 2020-10-30 | 合肥移瑞通信技术有限公司 | Antenna switching circuit and antenna system |
| CN112834831A (en) * | 2021-02-18 | 2021-05-25 | 中国第一汽车股份有限公司 | Antenna state detection circuit |
| CN114596762A (en) * | 2022-03-03 | 2022-06-07 | 华北电力大学 | Power electronic teaching experiment table wiring error checking equipment and method |
| CN114596762B (en) * | 2022-03-03 | 2023-10-24 | 华北电力大学 | Power electronic teaching experiment table wiring error checking equipment and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20160813 |
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| CF01 | Termination of patent right due to non-payment of annual fee |