CN202395747U - Dual-D flip-flop touch switch - Google Patents
Dual-D flip-flop touch switch Download PDFInfo
- Publication number
- CN202395747U CN202395747U CN2012200116911U CN201220011691U CN202395747U CN 202395747 U CN202395747 U CN 202395747U CN 2012200116911 U CN2012200116911 U CN 2012200116911U CN 201220011691 U CN201220011691 U CN 201220011691U CN 202395747 U CN202395747 U CN 202395747U
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Abstract
The utility model relates to a dual-D flip-flop touch switch which consists of a 12V direct-current power supply, a touch electrode MO, a monostability circuit and a resetting circuit thereof, a bi-stability circuit, a level signal amplifying and power control circuit, and the model adopted for the dual-D flip-flop integrated circuit IC1 is CD4013. The touch switch provided by the utility model only utilizes a common component and a touch electrode to implement the control switch with the self-locking function, namely, when a finger touches the touch electrode once, a load circuit is connected, and when the finger touches the touch electrode once again, the load circuit is disconnected; strong current and weak current parts and the power output control part can be separated effectively, thus the electricity supply power supply for loading can use alternating current, also can use direct current, and the dual-D flip-flop touch switch has a certain purpose in the field of domestic electric appliances, industrial automation, optical, mechanical and electrical integration. The dual-D flip-flop touch switch provided by the utility model overcomes various defects of a mechanical self-locking switch well.
Description
Technical field
The utility model belongs to the electronic auto-control technology field, is about a kind of pair of D flip-flop soft-touch control.
Background technology
The shortcoming of mechanical self-latching type rocker type switch or toggle switch is that operational motion varies with each individual and switch contact is easy to shake.Because the mechanical self-latching type switch is through the continuous impact of long-term big electric current, the contact of mechanical self-latching type switch is easy to ablate, wearing and tearing.
Described pair of D flip-flop of the utility model soft-touch control only uses common components and parts and touch electrode to realize having the control switch of auto-lock function, that is: touch electrode load circuit of finger touch is connected, and touches a touch electrode load circuit again and is cut off.Strong, weak electricity control section and power output control part can effective isolation, thereby the power supply of load can use alternating current, also can use direct current.It has certain purposes in household electrical appliance and industrial automation and light, mechanical, electrical integrated field.Described pair of D flip-flop of the utility model soft-touch control can well overcome the various defectives that the mechanical self-latching type switch exists.
Below specify described pair of D flip-flop of the utility model soft-touch control related correlation technique content in implementation process.
The utility model content
Goal of the invention and beneficial effect: described pair of D flip-flop of the utility model soft-touch control only uses common components and parts and touch electrode to realize having the control switch of auto-lock function; That is: touch electrode load circuit of finger touch is connected, and touches a touch electrode load circuit again and is cut off.Strong, weak electricity control section and power output control part can effective isolation, thereby the power supply of load can use alternating current, also can use direct current.It has certain purposes in household electrical appliance and industrial automation and light, mechanical, electrical integrated field.Described pair of D flip-flop of the utility model soft-touch control can well overcome the various defectives that the mechanical self-latching type switch exists.
The operation principle of circuit: two D flip-flop soft-touch controls use a two D flip-flop digital integrated circuit CD4013, are connected into a monostable circuit and a bistable circuit respectively.Monostable circuit is that the pulse duration of touch signal is carried out shaping, makes each touch action ability reliably working; Bistable circuit be used for driving N PN transistor npn npn VT1 conducting or end, by adhesive or the release of NPN transistor VT1 control relay J.
Finger is had a touch with touch electrode MO, and the positive half cycle signal of the alternating current of human body sensing gets into the 3rd pin of two D flip-flop ICs 1, gets into the moment of upset when monostable circuit; Its 1 pin output, the Q1 end is a high level by original low transition, this high level charges to capacitor C 1 through resistance R 1; The voltage of 4 pin of IC1 is slowly risen; When rising to reset potential, monostable circuit automatically resets, and 1 pin of IC1 reverts to low level.So point touch electrode MO of every touch, the 1 pin output of IC1, the Q1 end is just exported the positive pulse of a fixed width.This positive pulse directly is added to 11 pin of IC1, is added to the CP2 end of bistable circuit exactly, makes the bistable circuit upset once, its 13 pin output, and the level of Q2 end just changes once; When the 13 pin upset of IC1 was high level, the base stage of NPN transistor VT1 obtained forward currents and conducting through resistance R 2, made the relay J action.This shows, touch electrode MO of every touch, " connection " or " disconnection " that will make the relay J contact once.
Technical characterictic: two D flip-flop soft-touch controls, to form by 12V DC power supply, touch electrode MO, monostable circuit and reset circuit thereof, bistable circuit, level signal amplification and power control circuit, its characteristic comprises:
Monostable circuit and reset circuit thereof: the model that two D flip-flop ICs 1 adopt is CD4013; The negative pole of electrode MO and switching diode D1 is touched in the 3 pin contact of two D flip-flop ICs 1; The anodal connection circuit ground GND of switching diode D1; The end of 4 pin connecting resistance R1 of two D flip-flop ICs 1 and an end of capacitor C 1; 1 pin and 11 pin of the two D flip-flop ICs 1 of another termination of resistance R 1,6 pin and the 7 pin connection circuit ground GND of the other end of capacitor C 1 and two D flip-flop ICs 1, the anodal VCC of 5 pin of two D flip-flop ICs 1 and 14 pin connection circuits;
Bistable circuit: 9 pin of two D flip-flop ICs 1 link to each other with 12 pin, 8 pin of two D flip-flop ICs 1 and 10 pin connection circuit ground GND;
Level signal is amplified and power control circuit: be made up of NPN silicon transistor VT1, resistance R 2, relay J and silicon rectifier diode D2; The end of 13 pin connecting resistance R2 of two D flip-flop ICs 1; The base stage of another termination NPN transistor VT1 of resistance R 2; One end of the collector connecting relay J coil of NPN transistor VT1 and the positive pole of silicon rectifier diode D2; The anodal VCC of the negative pole connection circuit of the other end of relay J coil and silicon rectifier diode D2, the emitter connection circuit ground GND of NPN transistor VT1.
The positive pole of 12V DC power supply links to each other with circuit anode VCC, and the negative pole of 12V DC power supply links to each other with circuit ground GND.
Description of drawings
Accompanying drawing 1 is the embodiment circuit working schematic diagram that the utility model provides two D flip-flop soft-touch controls; The negative pole connection circuit ground GND of 12V DC power supply.
Embodiment
According to two D flip-flop touch switch circuit fundamental diagrams and the description of drawings shown in the accompanying drawing 1; And according to the annexation between the components and parts in the described each several part circuit of utility model content, and the components and parts technical parameter described in the execution mode requires to implement to realize the utility model.
The selection of components and parts and technical parameter thereof
IC1 is the two D flip-flop digital integrated circuits of CD4013 type, adopts 14 pin dual inline type DIP Plastic Package, and this IC interior has two flip-flop digital integrated circuits that circuit structure is identical;
VT1 is a NPN transistor, and model can adopt middle power transistors such as 2CS9013;
D1 is a switching diode, and model is a 1N4148 glassivation switching diode;
D2 is a silicon rectifier diode, and model is 1N4001;
The resistance of resistance R 1 is 4.3M Ω; The resistance 10K Ω of resistance R 2;
J is a direct current relay, and its direct-current working volts are 12V, requires coil windings direct current resistance >=850 Ω, can select JRX-13F or 4098 type direct current relays for use;
C1 is an electric capacity, and capacitance is 0.22 μ F/40V;
Touch electrode MO can use the copper sheet metal of ￠ 12mm to make, and the lead-in wire that connects touch electrode MO is unsuitable oversize, otherwise oversize lead-in wire makes soft-touch control generation misoperation easily.
The making of circuit, debugging and use
When the debugging of two D flip-flop touch switch circuits, the capacity of capacitor C 1 can not be too little, otherwise might the monostable circuit reset speed influence the correct upset of bistable circuit too soon.Therefore, the capacity of capacitor C 1 is suitable unsuitable little greatly, to guarantee that circuit misoperation can not take place.After the relay J of suggestion in two D flip-flop touch switch circuits discharges, wait and touch touch electrode MO more than 3 seconds once more, to guarantee the relay J correct operation in the bistable circuit;
The load current maximum of the utility model circuit is 1A, if the suitable high power relay of selected technology parameter, i.e. powerful AC load of may command or DC load;
The technological deficiency of the utility model is that the execution speed of action is slow slightly, and the action execution speed is suitable with traditional mechanical self-locking rocker type switch.
Claims (2)
1. a two D flip-flop soft-touch control is made up of 12V DC power supply, touch electrode MO, monostable circuit and reset circuit thereof, bistable circuit, level signal amplification and power control circuit, and its characteristic comprises:
The model that two D flip-flop ICs 1 adopt in monostable circuit and the reset circuit thereof is CD4013; The negative pole of electrode MO and switching diode D1 is touched in the 3 pin contact of two D flip-flop ICs 1; The anodal connection circuit ground GND of switching diode D1; The end of 4 pin connecting resistance R1 of two D flip-flop ICs 1 and an end of capacitor C 1; 1 pin and 11 pin of the two D flip-flop ICs 1 of another termination of resistance R 1,6 pin and the 7 pin connection circuit ground GND of the other end of capacitor C 1 and two D flip-flop ICs 1, the anodal VCC of 5 pin of two D flip-flop ICs 1 and 14 pin connection circuits;
9 pin of the two D flip-flop ICs 1 in the bistable circuit link to each other with 12 pin, 8 pin of two D flip-flop ICs 1 and 10 pin connection circuit ground GND;
Level signal is amplified and power control circuit is made up of NPN silicon transistor VT1, resistance R 2, relay J and silicon rectifier diode D2; The end of 13 pin connecting resistance R2 of two D flip-flop ICs 1; The base stage of another termination NPN transistor VT1 of resistance R 2; One end of the collector connecting relay J coil of NPN transistor VT1 and the positive pole of silicon rectifier diode D2; The anodal VCC of the negative pole connection circuit of the other end of relay J coil and silicon rectifier diode D2, the emitter connection circuit ground GND of NPN transistor VT1.
2. according to claim 1 pair of D flip-flop soft-touch control is characterized in that: the positive pole of 12V DC power supply links to each other with circuit anode VCC, and the negative pole of 12V DC power supply links to each other with circuit ground GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200116911U CN202395747U (en) | 2012-01-03 | 2012-01-03 | Dual-D flip-flop touch switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200116911U CN202395747U (en) | 2012-01-03 | 2012-01-03 | Dual-D flip-flop touch switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202395747U true CN202395747U (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200116911U Expired - Fee Related CN202395747U (en) | 2012-01-03 | 2012-01-03 | Dual-D flip-flop touch switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202395747U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420601A (en) * | 2012-01-03 | 2012-04-18 | 王寅寅 | Dual-D flip-flop touch switch |
-
2012
- 2012-01-03 CN CN2012200116911U patent/CN202395747U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420601A (en) * | 2012-01-03 | 2012-04-18 | 王寅寅 | Dual-D flip-flop touch switch |
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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: 20120822 Termination date: 20130103 |