CN201490913U - Multifunctional soft-touch power switch control circuit - Google Patents
Multifunctional soft-touch power switch control circuit Download PDFInfo
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- CN201490913U CN201490913U CN2009201939115U CN200920193911U CN201490913U CN 201490913 U CN201490913 U CN 201490913U CN 2009201939115 U CN2009201939115 U CN 2009201939115U CN 200920193911 U CN200920193911 U CN 200920193911U CN 201490913 U CN201490913 U CN 201490913U
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Abstract
The utility model relates to a power switch control circuit comprising a power transformer which is electrically connected with single-phase commercial power connecting wires LA and LB, a rectifying voltage stabilizing filter component, a soft-touch switch, a single-pole double-throw relay and a CPU, wherein the normally-opened end of the single-pole double-throw relay is connected with one end of the commercial power connecting wire LA and the soft-touch switch, and the normally-closed end thereof is connected with the other end of the soft-touch switch and an input port of the CPU; the input port of the CPU is connected with a voltage stabilizing diode; the public end of the single-pole double-throw relay is connected with one end of a primary coil of the power transformer and the other end of the primary coil of the power transformer is connected with the commercial power connecting wire LB; a power earth wire of the rectifying voltage stabilizing filter component or an output power VCC is connected with the public end of the single-pole double-throw relay; a power interface of the CPU and an earth wire interface are respectively connected with the output power VCC of the rectifying voltage stabilizing filter component and the power earth wire; and an output port of the CPU is connected with one end of a relay coil through a driving component and the other end of the relay coil is connected with an output power VDD of the rectifying voltage stabilizing filter component. The power switch control circuit has the advantages of energy conservation and environmental protection, safe use and high intelligent degree.
Description
[technical field]
The utility model relates to a kind of power on-off control circuit, refers in particular to the soft-touch type power on-off control circuit.
[background technology]
Existing household electrical appliances and other electrical equipment all need to use mains switch, and majority is self-locking switch (as ship type switch) or traditional touch switch in current these charged source switches of electrical equipment institute, charged source switch are not also arranged, as air conditioner.The self-locking switch often takes up space, and is not attractive in appearance, with after need artificial outage, use inconvenient; And traditional soft-touch type mains switch has been the effect of connecting load power source and start-up control program, power supply that can not control circuit board, so the long-term "on" position of wiring board, this not only wastes electric energy, and is also dangerous, as washing machine, air conditioner, television set etc.; And charged source switch is not wasted electric energy and dangerous because of the long-term energising of control circuit board equally, as embedded disinfection cupboard etc.
[utility model content]
The purpose of this utility model is to be to overcome the deficiencies in the prior art, and a kind of energy-conserving and environment-protective, multifunctional light touch type power supply switch circuit that safe in utilization, intelligent degree is high are provided.
In order to solve the technical problem of above-mentioned existence, the utility model adopts following technical proposals:
A kind of multifunctional light touch type power supply switch control circuit, include the power transformer T, rectifying and voltage-stabilizing filtering unit, touch-switch, single-pole double throw relay K and the CPU that are connected with single-phase city electric connection line LA, LB, wherein: the Chang Kaiduan of single-pole double throw relay K connects civil power LA line and touch-switch S one end, normal-closed end is connected with the CPU input port with the touch-switch S other end, and the CPU input port is connected as clamped protection with voltage stabilizing didoe DZ again; The common port of single-pole double throw relay K is connected with power transformer T primary coil one end, and the power transformer T primary coil other end links to each other with civil power LB line; The power ground of rectifying and voltage-stabilizing filtering unit or out-put supply VCC are connected with single-pole double throw relay K common port; The power interface of CPU is connected with power ground with the out-put supply VCC of rectifying and voltage-stabilizing filtering unit respectively with interface of the ground wire; The CPU delivery outlet is connected with relay coil one end by driver part, the out-put supply VDD of the relay coil other end and rectifying and voltage-stabilizing filtering unit.
In improvement project to above-mentioned multifunctional light touch type power supply switch control circuit, described CPU also is connected with voltage stabilizing didoe DZ negative pole with pull-up resistor R1 one end with the input port that touch-switch K links to each other, and the pull-up resistor R1 other end is connected with power ground with the out-put supply VCC of rectifying and voltage-stabilizing filtering unit respectively with voltage stabilizing didoe DZ positive pole; The power ground of rectifying and voltage-stabilizing filtering unit is connected with single-pole double throw relay K common port.
In improvement project to above-mentioned multifunctional light touch type power supply switch control circuit, increasing between the common port of described power transformer T and single-pole double throw relay K and unidirectional civil power LB line has the Switching Power Supply servopackage, is used to control the out-put supply of power transformer T.
In improvement project to above-mentioned multifunctional light touch type power supply switch control circuit, the input port that described CPU links to each other with touch-switch K also is connected with voltage stabilizing didoe DZ is anodal with pull down resistor R2 one end, and the pull down resistor R2 other end is connected with out-put supply VCC with the power ground of rectifying and voltage-stabilizing filtering unit respectively with voltage stabilizing didoe DZ negative pole; The out-put supply VCC of this rectifying and voltage-stabilizing filtering unit is connected with the relay K common port.
In improvement project to above-mentioned multifunctional light touch type power supply switch control circuit, increasing between the common port of described power transformer T and single-pole double throw relay K and unidirectional civil power LB line has the Switching Power Supply servopackage, is used to control the out-put supply of power transformer T.
In the improvement project to above-mentioned multifunctional light touch type power supply switch control circuit, described driver part includes current-limiting resistance R3, NPN triode Q and diode D, and the delivery outlet of described CPU is connected with the base stage of triode Q by current-limiting resistance R3; The collector electrode of triode Q connects power ground, and emitter is connected with the positive pole of diode D and coil one end of single-pole double throw relay K; The coil other end of the negative pole of diode D and single-pole double throw relay K is connected the back and links to each other with the out-put supply VDD of rectifying and voltage-stabilizing filtering unit.
Compared with prior art, the beneficial effects of the utility model are: 1), since the utility model be to realize that by the control program in the CPU single-pole double throw relay resets, thereby electrical equipment is cut off the power supply fully, can improve these electrical equipment the use intellectuality, be user-friendly to; And its interior electric component was no longer switched on after electrical equipment cut off the power supply fully, realized energy-conserving and environment-protective and safety.
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
[description of drawings]
Fig. 1 is the circuit block diagram of the utility model embodiment one;
Fig. 2 is the circuit block diagram of the utility model embodiment two;
Fig. 3 is the circuit block diagram of the utility model embodiment three;
Fig. 4 is the circuit block diagram of the utility model embodiment four;
Fig. 5 is the circuit theory diagrams of the utility model embodiment one;
Fig. 6 is the circuit theory diagrams of the utility model embodiment two;
Fig. 7 is the circuit theory diagrams of the utility model embodiment three;
Fig. 8 is the circuit theory diagrams of the utility model embodiment four.
[embodiment]
The utility model is a kind of multifunctional light touch type power supply switch control circuit, is suitable for the program control type electric equipment products that manually power on, electric equipment products such as particularly suitable program control type fan, smoke exhaust ventilator, embedded disinfection cupboard, washing machine, cabinet type sky, accent television set.
The utility model includes power transformer T, the rectifying and voltage-stabilizing filtering unit 1 that is connected with single-phase city electric connection line LA, LB, wherein the connecting line LA of single-phase civil power or LB can with L mutually or N be connected.In the utility model, the soft-touch type power on-off control circuit also includes touch-switch S, single-pole double throw relay K and CPU, the out-put supply VDD of rectifying and voltage-stabilizing filtering unit 1 is the use power supply of single-pole double throw relay K, and out-put supply VCC is the use power supply of CPU.Wherein:
The Chang Kaiduan of single-pole double throw relay K connects civil power LA line and touch-switch S one end, and normal-closed end is connected with the CPU input port with the touch-switch S other end, and the CPU input port is connected as clamped protection with voltage stabilizing didoe DZ again; The common port of single-pole double throw relay K is connected with power transformer T primary coil one end, and the power transformer T primary coil other end links to each other with civil power LB line; The power ground of rectifying and voltage-stabilizing filtering unit or out-put supply VCC are connected with single-pole double throw relay K common port; The power interface of CPU is connected with power ground with the out-put supply VCC of rectifying and voltage-stabilizing filtering unit respectively with interface of the ground wire; The CPU delivery outlet is connected with relay coil one end by driver part, the out-put supply VDD of the single-pole double throw relay coil other end and rectifying and voltage-stabilizing filtering unit.
The operation principle of present embodiment is such: in initial condition, before the touch-switch S closure, LA, LB are not linked to be the loop, and circuit is in off-position.After pressing touch-switch S and making it closure, LA, LB form the loop through the normal-closed end and the common port of single-pole double throw relay K, realize power-on servicing.After the energising, the delivery outlet output high level of CPU makes driver part 2 conductings, so the coil electricity of single-pole double throw relay K disconnects the common port of single-pole double throw relay K and normal-closed end, transfer to Chang Kaiduan and linking to each other, LA, LB form the loop through relay normally open end and common port, and normal-closed end no longer works.Unclamp touch-switch S and finish the energising function.
Because the common port of the power ground order dpdt double-pole double-throw (DPDT) relay K of rectifying and voltage-stabilizing filtering unit 1, after the energising, power ground is connected to touch-switch S one end by the common port and the normal beginning of relay, so, touch-switch S becomes common touch-switch, as outage and other switching functions of software control.At relay power tolerance band, LA is the L phase time, and load power source should be provided by the relay common port, and after the outage, the L phase power supply on the loaded line disconnects, and uses safer like this.
From above-mentioned operating function as can be seen, after this power on-off control circuit being applied to electrical equipment such as washing machine, air conditioner, television set, these electrical equipment are after using or regularly using, can realize that the single-pole double throw relay K resets by the control program in the CPU, thereby electrical equipment is cut off the power supply fully, can improve these electrical equipment the use intellectuality, be user-friendly to; And its interior electric component was no longer switched on after electrical equipment cut off the power supply fully, realized energy-conserving and environment-protective and safety.
The model of CPU has multiple, but can be divided into the input port built-in resistor basically (on draw or pull down resistor) or two kinds of strip resistance not.The CPU model of built-in resistor has PIC16F877, MC68HC908JL etc., and the CPU model of strip resistance does not have PIC16F57, AT89F2051 etc.
In the embodiment shown in Fig. 1,5 one, CPU itself is a strip resistance not, at this moment described CPU also is connected with voltage stabilizing didoe DZ negative pole with pull-up resistor R1 one end with the input port that touch-switch K links to each other, and the pull-up resistor R1 other end is connected with power ground with the out-put supply VCC of rectifying and voltage-stabilizing filtering unit 1 respectively with voltage stabilizing didoe DZ positive pole; The power ground of rectifying and voltage-stabilizing filtering unit is connected with the relay K common port.For the CPU of built-in resistor, its input port can not need to connect in addition again draws resistance R 1.In the embodiment shown in Fig. 2,6 two, be that the expansion of embodiment one is used, it is to increase Switching Power Supply servopackage 3 is arranged between the common port of described power transformer T and single-pole double throw relay K and unidirectional civil power LB line, is used for controlling the out-put supply of power transformer T.In embodiment one, two, when touch-switch S used as common touch-switch, touch-switch S pressed, and it is output as low level.
In the embodiment shown in Fig. 3,7 three, CPU itself is a strip resistance not, at this moment the input port that described CPU links to each other with touch-switch K also is connected with voltage stabilizing didoe DZ is anodal with pull down resistor R2 one end, and the pull down resistor R2 other end is connected with out-put supply VCC with the power ground of rectifying and voltage-stabilizing filtering unit 1 respectively with voltage stabilizing didoe DZ negative pole; The out-put supply VCC of rectifying and voltage-stabilizing filtering unit 1 is connected with the relay K common port.In the embodiment shown in Fig. 4,8 four, be that the expansion of embodiment three is used, it increases between the common port of described power transformer T and single-pole double throw relay K and unidirectional civil power LB line the Switching Power Supply servopackage, is used for controlling the out-put supply of power transformer T.In embodiment three, four, when touch-switch S used as common touch-switch, touch-switch S pressed, and it is output as high level.
In the utility model embodiment one to four, driver part 2 includes current-limiting resistance R3, NPN triode Q and diode D, and the delivery outlet of described CPU is connected with the base stage of triode Q by current-limiting resistance R3; The collector electrode of triode Q connects power ground, and emitter is connected with the positive pole of diode D and coil one end of single-pole double throw relay K; The coil other end of the negative pole of diode D and single-pole double throw relay K is connected the back and links to each other with the out-put supply VDD of rectifying and voltage-stabilizing filtering unit 1.
Claims (6)
1. a multifunctional light touch type power supply switch control circuit includes the power transformer T, the rectifying and voltage-stabilizing filtering unit that are connected with single-phase city electric connection line LA, LB, it is characterized in that: also include touch-switch S, single-pole double throw relay K and CPU, wherein:
The Chang Kaiduan of single-pole double throw relay K connects civil power LA line and touch-switch S one end, and normal-closed end is connected with the CPU input port with the touch-switch S other end, and the CPU input port is connected as clamped protection with voltage stabilizing didoe DZ again; The common port of single-pole double throw relay K is connected with power transformer T primary coil one end, and the power transformer T primary coil other end links to each other with civil power LB line; The power ground of rectifying and voltage-stabilizing filtering unit or out-put supply VCC are connected with single-pole double throw relay K common port;
The power interface of CPU is connected with power ground with the out-put supply VCC of rectifying and voltage-stabilizing filtering unit respectively with interface of the ground wire; The CPU delivery outlet is connected with relay coil one end by driver part, the out-put supply VDD of the relay coil other end and rectifying and voltage-stabilizing filtering unit.
2. multifunctional light touch type power supply switch control circuit according to claim 1, it is characterized in that: described CPU also is connected with voltage stabilizing didoe DZ negative pole with pull-up resistor R1 one end with the input port that touch-switch K links to each other, and the pull-up resistor R1 other end is connected with power ground with the out-put supply VCC of rectifying and voltage-stabilizing filtering unit respectively with voltage stabilizing didoe DZ positive pole; The power ground of rectifying and voltage-stabilizing filtering unit is connected with single-pole double throw relay K common port.
3. multifunctional light touch type power supply switch control circuit according to claim 2, it is characterized in that: increasing between the common port of described power transformer T and single-pole double throw relay K and unidirectional civil power LB line has the Switching Power Supply servopackage, is used to control the out-put supply of power transformer T.
4. multifunctional light touch type power supply switch control circuit according to claim 1, it is characterized in that: the input port that described CPU links to each other with touch-switch K also is connected with voltage stabilizing didoe DZ is anodal with pull down resistor R2 one end, and the pull down resistor R2 other end is connected with out-put supply VCC with the power ground of rectifying and voltage-stabilizing filtering unit respectively with voltage stabilizing didoe DZ negative pole; The out-put supply VCC of this rectifying and voltage-stabilizing filtering unit is connected with the relay K common port.
5. multifunctional light touch type power supply switch control circuit according to claim 4, it is characterized in that: increasing between the common port of described power transformer T and single-pole double throw relay K and unidirectional civil power LB line has the Switching Power Supply servopackage, is used to control the out-put supply of power transformer T.
6. according to claim 1,2,3,4 or 5 described multifunctional light touch type power supply switch control circuits, it is characterized in that: described driver part includes current-limiting resistance R3, NPN triode Q and diode D, and the delivery outlet of described CPU is connected with the base stage of triode Q by current-limiting resistance R3; The collector electrode of triode Q connects power ground, and emitter is connected with the positive pole of diode D and coil one end of single-pole double throw relay K; The coil other end of the negative pole of diode D and single-pole double throw relay K is connected the back and links to each other with the out-put supply VDD of rectifying and voltage-stabilizing filtering unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201939115U CN201490913U (en) | 2009-08-27 | 2009-08-27 | Multifunctional soft-touch power switch control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201939115U CN201490913U (en) | 2009-08-27 | 2009-08-27 | Multifunctional soft-touch power switch control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201490913U true CN201490913U (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201939115U Expired - Fee Related CN201490913U (en) | 2009-08-27 | 2009-08-27 | Multifunctional soft-touch power switch control circuit |
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| CN (1) | CN201490913U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005952A (en) * | 2010-12-06 | 2011-04-06 | 南通大学 | On/off controllable AC/DC power supply module of digital circuit |
| CN104967344A (en) * | 2015-06-10 | 2015-10-07 | 中国电力工程顾问集团华东电力设计院有限公司 | Step-down grid-connected photovoltaic inverter and startup method thereof |
-
2009
- 2009-08-27 CN CN2009201939115U patent/CN201490913U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005952A (en) * | 2010-12-06 | 2011-04-06 | 南通大学 | On/off controllable AC/DC power supply module of digital circuit |
| CN104967344A (en) * | 2015-06-10 | 2015-10-07 | 中国电力工程顾问集团华东电力设计院有限公司 | Step-down grid-connected photovoltaic inverter and startup method thereof |
| CN104967344B (en) * | 2015-06-10 | 2017-07-28 | 中国电力工程顾问集团华东电力设计院有限公司 | Step-down combining photovoltaic DC-to-AC converter and its startup method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20130827 |