CN203872151U - Single-key control switch assembly - Google Patents
Single-key control switch assembly Download PDFInfo
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- CN203872151U CN203872151U CN201320839070.7U CN201320839070U CN203872151U CN 203872151 U CN203872151 U CN 203872151U CN 201320839070 U CN201320839070 U CN 201320839070U CN 203872151 U CN203872151 U CN 203872151U
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Abstract
The utility model relates to a single-key control switch assembly. The single-key control switch assembly is characterized in that the single-key control switch assembly comprises a 12V DC power supply, a bistable circuit, a stable-state switching circuit and a state indicating and level output circuit; the bistable circuit is composed of a time-base circuit IC1, a resistor R1, a resistor R2 and a capacitor C1; the chosen type of the time-base circuit IC1 is NE555; and the stable-state switching circuit is composed of a resistor R3, a capacitor C2 and a key switch AN; and, in the state indicating and level output circuit, a seventh pin of the time-base circuit IC1 is connected with one end of a resistor R4 and a level output terminal, the other end of the resistor R4 is connected with a cathode of a light-emitting diode LED, and an anode of the light-emitting diode LED is connected with a circuit anode VCC. One key switch for a few commonly used components and parts is used to achieve a control switch having a self-locking function, a circuit output level can be used to drive a power control circuit, and the circuit of the single-key control switch assembly has the advantages of concise structure, reliable actions, low cost and the like.
Description
Technical field
The utility model belongs to electron controls technology field, relates to a kind of single-button control switch assembly.
Background technology
The shortcoming of common boat type machine self-lock switch or toggle switch is: action is mechanical, operational motion varies with each individual and easily shake contact.In addition, because mechanical self-latching switch is through the continuous impact of long-term large electric current, the as easy as rolling off a log ablation in contact of mechanical self-latching type switch, wearing and tearing.
In order to overcome the certain defect of the congenital existence of existing machinery self-lock switch, the utility model uses a small amount of conventional components and parts to realize the control switch with auto-lock function with single key switch, that is: press one-touch switching circuit output low level, then press one-touch switching circuit output high level.This control switch adopts conventional components and parts to make, and it has good purposes in household electrical appliance and industrial automation and light, mechanical, electrical integrated facility.Single-button control switch assembly described in the utility model can well overcome some defects that mechanical self-latching switch exists, and realizes with a button switch control circuit output level.That its circuit has is simple for structure, reliable in action, the feature such as cheap, can utilize as required circuit output level driving power control circuit.
The circuit that below illustrates single-button control switch assembly described in the utility model related correlation technique content in implementation process.
Utility model content
Goal of the invention and beneficial effect: the utility model uses a small amount of conventional components and parts to realize the control switch with auto-lock function with single key switch, presses one-touch switching circuit output low level that is:, then press one-touch switching circuit output high level.This control switch adopts conventional components and parts to make, and it has good purposes in household electrical appliance and industrial automation and light, mechanical, electrical integrated facility.Single-button control switch assembly described in the utility model can well overcome some defects that mechanical self-latching switch exists, and realizes with a button switch control circuit output level.That its circuit has is simple for structure, reliable in action, the feature such as cheap, can utilize as required circuit output level driving power control circuit.
Circuit working principle: with 555 conventional time-base circuits making single-button control switch assemblies, it have the level of simple circuit, reliable in action, output can Drive and Control Circuit etc. advantage, realization can make circuit output high level or low level with a key switch, can utilize as required circuit output level driving power control circuit.
Because making the 2nd pin of time-base circuit IC1 and the 6th pin, the dividing potential drop effect of resistance R 1 and resistance R 2 is offset to 1/2 DC power supply voltage, the 3rd pin output level of time-base circuit IC1 has randomness, click key switch AN, the voltage filling in capacitor C 2 adds to the 2nd pin and the 6th pin of time-base circuit IC1, make the voltage of the 6th pin higher than 2/3 DC power supply voltage, time-base circuit IC1 is resetted, the 3rd pin output low level of time-base circuit IC1, the also output low level of the 7th pin of time-base circuit IC1, make LED luminous, circuit enters a stable state simultaneously; Click again key switch AN, discharge off capacitor C 2 is attempted by the 2nd pin and the 6th pin of time-base circuit IC1, and time-base circuit IC1 is resetted, the 7th pin output high level of time-base circuit IC1, LED extinguishes simultaneously, and circuit enters another stable state.
As can be seen here: often press key switch AN once, the high and low level of the 3rd pin of time-base circuit IC1 just converts once.This single-button control switch assembly is no more than 1 second as long as press the time of key switch AN at every turn, just can normally realize the conversion of the high and low level of the 7th pin of time-base circuit IC1.If pressed & hold, switch AN is not put, and the high and low level of the 7th pin of time-base circuit IC1 will convert in turn.
Technical characterictic: single-button control switch assembly, it comprises 12V DC power supply, bistable circuit, stable state commutation circuit, state instruction and electrical level output circuit, it is characterized in that:
Bistable circuit: it is made up of time-base circuit IC1, resistance R 1, resistance R 2 and capacitor C 1, the model that time-base circuit IC1 selects is NE555, the anodal VCC of one termination circuit of the 4th pin of time-base circuit IC1 and the 8th pin and resistance R 1, the 2nd pin of time-base circuit IC1 and the 6th other end of pin connecting resistance R1 and one end of resistance R 2, the 1st pin of time-base circuit IC1 and the other end connection circuit of resistance R 2 ground GND, the 5th pin of time-base circuit IC1 is by capacitor C 1 connection circuit ground GND;
Stable state commutation circuit: it is made up of resistance R 3, capacitor C 2 and key switch AN, the 6th pin of time-base circuit IC1 connects one end of key switch AN, the 3rd pin of time-base circuit IC1 connects one end of capacitor C 2 and the other end of key switch AN by resistance R 3, the other end connection circuit ground GND of capacitor C 2;
State instruction and electrical level output circuit: one end and level output end of the 7th pin connecting resistance R4 of time-base circuit IC1, the other end of resistance R 4 connects the negative pole of LED, the anodal VCC of anodal connection circuit of LED;
The anodal VCC of anodal connection circuit of 12V DC power supply, the negative pole of 12V DC power supply is connected with circuit ground GND.
Brief description of the drawings
Accompanying drawing is the embodiment circuit working schematic diagram that the utility model provides a single-button control switch assembly.
Embodiment
According to single-button control switch assembly circuit working schematic diagram shown in the drawings and brief description of the drawings, and according to annexation between components and parts in the each several part circuit described in utility model content, and the components and parts technical parameter described in execution mode requires and circuit production main points are implemented to realize the utility model, below in conjunction with embodiment, correlation technique of the present utility model is further described.
The selection of components and parts and technical parameter thereof
IC1 is time-base circuit, and the model of selecting is NE555 or LM555, and packing forms is dual inline type 8 pins; Each pin function: the 1st pin connection circuit ground GND; The 2nd pin is trigger end; The 3rd pin output; The 4th pin preset end; The 5th pin is for controlling voltage; The 6th pin thresholding (threshold value); The 7th pin is discharge end; The 8th pin meets positive source VCC;
The resistance of resistance R 1～resistance R 2 is 62K Ω; The resistance of resistance R 3 is 1M Ω; The resistance of resistance R 4 is 910 Ω;
C1 is electric capacity, and its capacity is 0.01 μ F; It is 0.039 μ F polypropylene capactive that capacitor C 2 is selected capacity;
LED is light-emitting diode, selects ￠ 5mm red light emitting diodes;
AN is key switch, can select K-18 type key switch;
Operating current requirement >=the 100mA of 12V DC power supply.
Circuit production main points and circuit debugging
Because of the circuit structure of single-button control switch assembly fairly simple, as long as the electronic devices and components performance of generally selecting is intact, and the components and parts annexation in accompanying drawing is welded to specifications, physical connection line and welding quality are after careful inspection is correct, circuit of the present utility model does not need to carry out any debugging substantially, connects 12V DC power supply and can normally work;
Complete machine maximum operating currenbt is 25mA, because the average operating current of complete machine is less, therefore can use common 12V rectifier power source;
Can utilize as required circuit output level driving power control circuit.
Claims (1)
1. a single-button control switch assembly, it comprises 12V DC power supply, bistable circuit, stable state commutation circuit, state instruction and electrical level output circuit, it is characterized in that:
Described bistable electro route time-base circuit IC1, resistance R 1, resistance R 2 and capacitor C 1 form, the model that time-base circuit IC1 selects is NE555, the anodal VCC of one termination circuit of the 4th pin of time-base circuit IC1 and the 8th pin and resistance R 1, the 2nd pin of time-base circuit IC1 and the 6th other end of pin connecting resistance R1 and one end of resistance R 2, the 1st pin of time-base circuit IC1 and the other end connection circuit of resistance R 2 ground GND, the 5th pin of time-base circuit IC1 is by capacitor C 1 connection circuit ground GND;
Described stable state commutation circuit is made up of resistance R 3, capacitor C 2 and key switch AN, the 6th pin of time-base circuit IC1 connects one end of key switch AN, the 3rd pin of time-base circuit IC1 connects one end of capacitor C 2 and the other end of key switch AN by resistance R 3, the other end connection circuit ground GND of capacitor C 2;
In described state instruction and electrical level output circuit, one end and level output end of the 7th pin connecting resistance R4 of time-base circuit IC1, the other end of resistance R 4 connects the negative pole of LED, the anodal VCC of anodal connection circuit of LED;
The anodal VCC of anodal connection circuit of described 12V DC power supply, the negative pole of 12V DC power supply is connected with circuit ground GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320839070.7U CN203872151U (en) | 2013-12-18 | 2013-12-18 | Single-key control switch assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320839070.7U CN203872151U (en) | 2013-12-18 | 2013-12-18 | Single-key control switch assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203872151U true CN203872151U (en) | 2014-10-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320839070.7U Expired - Fee Related CN203872151U (en) | 2013-12-18 | 2013-12-18 | Single-key control switch assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203872151U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633982A (en) * | 2013-12-18 | 2014-03-12 | 吴建堂 | Single-key control switch assembly |
| CN109640481A (en) * | 2018-12-24 | 2019-04-16 | 格尔翰汽车配件(东莞)有限公司 | A kind of bistable state automotive lighting control circuit |
-
2013
- 2013-12-18 CN CN201320839070.7U patent/CN203872151U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633982A (en) * | 2013-12-18 | 2014-03-12 | 吴建堂 | Single-key control switch assembly |
| CN109640481A (en) * | 2018-12-24 | 2019-04-16 | 格尔翰汽车配件(东莞)有限公司 | A kind of bistable state automotive lighting control circuit |
| CN109640481B (en) * | 2018-12-24 | 2023-10-31 | 格尔翰汽车配件(东莞)有限公司 | Bistable automobile lighting control 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 |
Granted publication date: 20141008 Termination date: 20141218 |
|
| EXPY | Termination of patent right or utility model |