CN201657409U - Novel single-key tact switch circuit - Google Patents
Novel single-key tact switch circuit Download PDFInfo
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- CN201657409U CN201657409U CN201020026483XU CN201020026483U CN201657409U CN 201657409 U CN201657409 U CN 201657409U CN 201020026483X U CN201020026483X U CN 201020026483XU CN 201020026483 U CN201020026483 U CN 201020026483U CN 201657409 U CN201657409 U CN 201657409U
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Abstract
The utility model discloses a novel single-key tact switch circuit which comprises a first resistor, a capacitor, a micro switch, a second resistor, a diode, a first audion, a second audion, a third resistor and a fourth resistor. One end of the first resistor and the emitting electrode of the second audion are connected to the anode of a power source, and the other end of the first resistor is respectively connected to the anode of the capacitor, one end of the micro switch and the anode of the diode; the cathode of the capacitor is grounded; the other end of the micro switch is respectively connected to one end of the second resistor and one end of the third resistor; the other end of the second resistor is connected to the base electrode of the first audion; the emitting electrode of the first audion is grounded and the collector electrode of the first audion is respectively connected to the cathode of the diode and one end of the fourth resistor; the other end of the fourth resistor is connected to the base electrode of the second audion; and the collector electrode of the second audion is connected to the other end of the third resistor. By adopting the above technical scheme, the novel single-key tact switch circuit has the advantages that the single-key tact switch circuit can reach the purpose of high-power contactless control while having the function of a single-key tact switch without adding any additional components, meanwhile, the single-key tact switch circuit has overload and short-circuit protection function, and the circuit is simple, practical and reliable.
Description
Technical field
The utility model relates to a kind of switching circuit, specifically is a kind of singly-bound touch-switch circuit.
Background technology
Singly-bound touch-switch circuit in the existing DC circuit; as shown in Figure 1; generally by touching button and trigger IC forms; one of shortcoming is directly to carry out high-power control; but need carry out power control by high-power driving or relay; secondly, short circuit overload protection if desired when carrying out high-power control then needs to add in addition the support of interlock circuit.
The utility model content
The purpose of this utility model provides a kind of novel singly-bound touch-switch circuit; it can need not to add in addition the purpose that components and parts just can reach high-power contactless control when finishing singly-bound touch-switch function; and having the overload short-circuit protection function, circuit is simple and practical reliable.
The technical solution of the utility model is such: a kind of novel singly-bound touch-switch circuit, comprise first resistance, electric capacity, sensitive switch, second resistance, diode, first triode, second triode, the 3rd resistance and the 4th resistance, one end of above-mentioned first resistance is connected positive source with the emitter of above-mentioned second triode, the other end of above-mentioned first resistance is connected to the positive pole of above-mentioned electric capacity respectively, one end of above-mentioned sensitive switch and the anode of above-mentioned diode, the minus earth of above-mentioned electric capacity, the other end of above-mentioned sensitive switch connects an end of above-mentioned second resistance and an end of above-mentioned the 3rd resistance respectively, the other end of above-mentioned second resistance connects the base stage of above-mentioned first triode, the grounded emitter of above-mentioned first triode, the collector electrode of above-mentioned first triode connects the negative electrode of above-mentioned diode and an end of above-mentioned the 4th resistance respectively, the other end of above-mentioned the 4th resistance connects the base stage of above-mentioned second triode, and the collector electrode of above-mentioned second triode connects the other end of above-mentioned the 3rd resistance.
Above-mentioned first triode is the NPN triode, and above-mentioned second triode is the PNP triode.
After adopting such scheme, profitable fruit of the present utility model is: can need not to add in addition the purpose that components and parts just can reach high-power contactless control when finishing singly-bound touch-switch function.And having the overload short-circuit protection function, circuit is simple and practical reliable.Be applicable to the DC circuit that need carry out power control, can certainly flexible Application in high-power control circuit more as singly-bound touch-switch control signal.
Description of drawings
Fig. 1 is traditional singly-bound touch-switch circuit theory diagrams;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing operation principle of the present utility model is described further.
A kind of novel singly-bound touch-switch circuit of the present utility model as shown in Figure 2, comprises resistance R 1, capacitor C 1, sensitive switch K1, resistance R 2, diode D1, NPN triode Q1, PNP triode Q2 and resistance R 3 and R4, R5, R6.One end of resistance R 1 is connected the 24V positive source with the emitter of triode Q2, the other end of resistance R 1 is connected to the positive pole of capacitor C 1 respectively, the end of sensitive switch K1 and the anode of diode D1, the minus earth of capacitor C 1, the other end of sensitive switch K1 connects an end of resistance R 2 and an end of resistance R 3 respectively, the other end of resistance R 2 connects the base stage of triode Q1 respectively, one end of resistance R 5 and an end of capacitor C 2, the other end of resistance R 5, the grounded emitter of the other end of capacitor C 2 and triode Q1, the collector electrode of triode Q1 connects the negative electrode of diode D1, and the collector electrode of triode Q1 is connected to the base stage of triode Q2 by resistance R 4, the collector electrode of triode Q2 connects the other end of resistance R 3, is connected with resistance R 6 between the base stage of triode Q2 and the emitter.
During use, be connected in as the bulb L1 of load between the emitter of the collector electrode of triode Q2 and triode Q1.
Operation principle: with reading lamp control circuit on the long-distance big bus passenger-seat is that embodiment describes, and the initial condition that powers on sensitive switch K1 is in off-state, and triode Q1 does not have biasing and ends, so triode Q2 also is in cut-off state, bulb L1 does not work.And the supply voltage of 24V charges to capacitor C 1 through resistance R 1 current limliting, and reaches supply voltage 24V rapidly, and this voltage will be that trigger triode Q1 is necessary.When touch click sensitive switch K1 then the voltage on the capacitor C 1 make its conducting through the base stage that resistance R 2 is added to triode Q1, the conducting of triode Q1 makes triode Q2 conducting by resistance R 4 on the one hand, makes capacitor C 1 repid discharge make it keep low level (about 1V) by diode D1 on the other hand.And the conducting of triode Q2 makes its collector electrode output high level, and makes it keep conducting state by the base stage that resistance R 3, R2 are added to triode Q1, can touch so that to keep triode Q2 to be in conducting state by the back be that bulb L1 is bright at sensitive switch K1 for the first time.This moment, circuit was in closure state, when touching once more by sensitive switch K1, because capacitor C 1 makes base current moment of triode Q1 conducting be absorbed by capacitor C 1 for low level makes originally by resistance R 3, R2, thus make triode Q1 by and to cause triode Q2 also to end be off state.This moment, the diode D1 in the circuit was in partially instead, and the voltage of getting back to initial condition 24V, makes circuit be in closure state by sensitive switch K1 to prepare for touch next time to capacitor C 1 charging through resistance R 1 current limliting.Capacitor C 2 is used to make the initial condition of circuit reliably to be in off state.
The collector electrode output voltage of triode Q2 is on the low side during overweight or short circuit when load makes triode Q1 can't keep conducting state and then causes triode Q2 to end, and promptly circuit is in off state, shields.
Claims (2)
1. novel singly-bound touch-switch circuit, it is characterized in that: comprise first resistance, electric capacity, sensitive switch, second resistance, diode, first triode, second triode, the 3rd resistance and the 4th resistance, one end of above-mentioned first resistance is connected positive source with the emitter of above-mentioned second triode, the other end of above-mentioned first resistance is connected to the positive pole of above-mentioned electric capacity respectively, one end of above-mentioned sensitive switch and the anode of above-mentioned diode, the minus earth of above-mentioned electric capacity, the other end of above-mentioned sensitive switch connects an end of above-mentioned second resistance and an end of above-mentioned the 3rd resistance respectively, the other end of above-mentioned second resistance connects the base stage of above-mentioned first triode, the grounded emitter of above-mentioned first triode, the collector electrode of above-mentioned first triode connects the negative electrode of above-mentioned diode and an end of above-mentioned the 4th resistance respectively, the other end of above-mentioned the 4th resistance connects the base stage of above-mentioned second triode, and the collector electrode of above-mentioned second triode connects the other end of above-mentioned the 3rd resistance.
2. a kind of novel singly-bound touch-switch circuit according to claim 1, it is characterized in that: above-mentioned first triode is the NPN triode, above-mentioned second triode is the PNP triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020026483XU CN201657409U (en) | 2010-01-05 | 2010-01-05 | Novel single-key tact switch circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020026483XU CN201657409U (en) | 2010-01-05 | 2010-01-05 | Novel single-key tact switch circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201657409U true CN201657409U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020026483XU Expired - Fee Related CN201657409U (en) | 2010-01-05 | 2010-01-05 | Novel single-key tact switch circuit |
Country Status (1)
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| CN (1) | CN201657409U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178816A (en) * | 2011-12-26 | 2013-06-26 | 海洋王照明科技股份有限公司 | Single-key switch control circuit and lighting |
| CN103607483A (en) * | 2013-12-06 | 2014-02-26 | 辽宁工程技术大学 | Mobile phone incoming call sensing sending device |
| CN103676681A (en) * | 2012-09-17 | 2014-03-26 | 深圳市海洋王照明工程有限公司 | Single-bond switch control circuit and LED flashlight |
| CN104656480A (en) * | 2015-01-05 | 2015-05-27 | 广东金莱特电器股份有限公司 | Circuit controlled by light touch switch |
| CN105990058A (en) * | 2016-06-30 | 2016-10-05 | 博耳智能科技（无锡）有限公司 | Point contact-type intelligent switch |
| CN106502173A (en) * | 2016-12-30 | 2017-03-15 | 广东金莱特电器股份有限公司 | The many touch-switch start-up circuits of low-power consumption |
-
2010
- 2010-01-05 CN CN201020026483XU patent/CN201657409U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178816A (en) * | 2011-12-26 | 2013-06-26 | 海洋王照明科技股份有限公司 | Single-key switch control circuit and lighting |
| CN103676681A (en) * | 2012-09-17 | 2014-03-26 | 深圳市海洋王照明工程有限公司 | Single-bond switch control circuit and LED flashlight |
| CN103607483A (en) * | 2013-12-06 | 2014-02-26 | 辽宁工程技术大学 | Mobile phone incoming call sensing sending device |
| CN104656480A (en) * | 2015-01-05 | 2015-05-27 | 广东金莱特电器股份有限公司 | Circuit controlled by light touch switch |
| CN105990058A (en) * | 2016-06-30 | 2016-10-05 | 博耳智能科技（无锡）有限公司 | Point contact-type intelligent switch |
| CN105990058B (en) * | 2016-06-30 | 2019-05-10 | 博耳智能科技（无锡）有限公司 | A kind of intelligent switch of point contact type |
| CN106502173A (en) * | 2016-12-30 | 2017-03-15 | 广东金莱特电器股份有限公司 | The many touch-switch start-up circuits of low-power consumption |
| CN106502173B (en) * | 2016-12-30 | 2023-07-25 | 广东金莱特电器股份有限公司 | Low-power-consumption multi-touch switch starting circuit |
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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: QUANZHOU CHIYOUNG ELECTROMECHANICAL CO., LTD. Free format text: FORMER OWNER: JIANG YUNJIAN Effective date: 20120411 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120411 Address after: 362000 Fujian province Quanzhou Licheng District Jiangnan office tree bag Patentee after: Quanzhou Chiyoung Instrument Co., Ltd. Address before: 362000 Fujian province Quanzhou Licheng District Jiangnan office tree bag Patentee before: Jiang Yunjian |
|
| 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: 20101124 Termination date: 20180105 |