CN201436608U - Controller energy saving device equipped with a relay - Google Patents
Controller energy saving device equipped with a relay Download PDFInfo
- Publication number
- CN201436608U CN201436608U CN2009200586667U CN200920058666U CN201436608U CN 201436608 U CN201436608 U CN 201436608U CN 2009200586667 U CN2009200586667 U CN 2009200586667U CN 200920058666 U CN200920058666 U CN 200920058666U CN 201436608 U CN201436608 U CN 201436608U
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- China
- Prior art keywords
- triode
- mcu
- relay
- controller energy
- energy saver
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Abstract
A controller energy saving device equipped with a relay comprises a switch power supply circuit and an MCU control circuit comprising an MCU, a triode Q6 and a feedback sampling resistor R4, wherein the triode Q6 is serially connected with the feedback sampling resistor R4, an output signal terminal of the MCU is connected with a base of the triode Q6. Taking one output of the MCU as a control terminal, through changing the sampling divider resistor of the switch power supply, the output voltage of the switch power supply is adjusted. Through reducing holding current of relay pickup, the utility model can reduce power consumption, increase working reliability, and improve working service life and conform to the energy saving requirement under the modern condition of energy shortage.
Description
[technical field]
The utility model relates to circuit field, refers in particular to domestic electric appliances controller.
[background technology]
Along with the requirement of countries in the world to the power consumption requirement, particularly stand-by power consumption of electric equipment improves, reduce the research emphasis that system power dissipation becomes each household appliances enterprise.
Relay in the control circuit only just needs the higher bigger the suction-combining force of operating voltage generation to come the adhesive contact when adhesive, need after the adhesive to keep voltage very low, and traditional control relay circuit still keeps the driving voltage of 12V after relay is opened, continue very big electric current, power consumption is very big, very waste energy, as shown in Figure 1.Adopt some Voltage stabilizing modules (as 7805 etc.) to obtain the low-tension supply that needs simultaneously most probably, too high like this voltage has also strengthened the power consumption of these modules.
Therefore, provide a kind of controller energy saver of the tape relay that electric current is little, power consumption is little, functional reliability is high of keeping in fact for necessary.
[summary of the invention]
The purpose of this utility model is to provide a kind of controller energy saver of keeping the tape relay that electric current is little, power consumption is little, functional reliability is high.
For realizing the utility model purpose, provide following technical scheme:
The controller energy saver of the utility model tape relay comprises switching power circuit and MCU control circuit, the MCU control circuit comprises MCU, triode Q6 and feedback sample resistance R 4, triode Q6 and 4 series connection of feedback sample resistance R, the MCU output signal end is connected with the base stage of triode Q6, described switching power circuit comprises feedback sample resistance R 3, and the triode Q6 and the feedback sample resistance R 4 of series connection are in parallel with feedback sample resistance R 3.Utilize MCU one tunnel output as control end, connect the triode Q6 and the feedback sample resistance R 4 of series connection, the size of the sampling divider resistance by changing Switching Power Supply is come the size of the output voltage of by-pass cock power supply with this.
When relay needs adhesive, divider resistance is restored, voltage to be driven rises to+12V after pilot relay adhesive again; After the relay adhesive is stable, provide control signal, repeat to change divider resistance, reduce and keep voltage.
This MCU is connected with triode Q6 by triode Q7, causes MCU to burn out thereby avoid directly voltage being added on the MCU pin when the Q6 conducting.The output signal end of this MCU is connected with the base stage of triode Q7, and the collector of triode Q7 connects the base stage of triode Q6, the grounded emitter of triode Q7.
Further improve ground, this MCU is connected with the base stage of triode Q7 by current-limiting resistance R6, and the collector of this triode Q7 connects the base stage of triode Q6 by current-limiting resistance R5.
Wherein this triode Q6 adopts the positive-negative-positive triode, and this triode Q7 adopts NPN type triode.
The contrast prior art the utlity model has following advantage:
1, by reducing the electric current of keeping of relay adhesive, reduce power consumption, and the working temperature reduction, help improving the life-span.
2, reduce output voltage, reduce the power consumption of back level power supply conversion, increase its functional reliability, and improve mission life.
3, switching tube service time of Switching Power Supply shortens, and switching loss reduces, and the infringement of device is reduced, and helps delaying aging, improves reliability.
4, because local pyrexia reduces, and pcb board and near components and parts environment temperature reduce, the life-span prolongs.
5, stand-by power consumption reduces, and meets the energy-conservation requirement under the modern energy shortage situation.
[description of drawings]
Fig. 1 is the existing circuit theory diagrams that do not add energy-conservation device;
Fig. 2 is the circuit theory diagrams of the controller energy saver of the utility model tape relay.
[embodiment]
See also Fig. 2, on switching power circuit, increase resistance R 4, increase the switch of two triodes of Q6, Q7, and increase R5, R6 as current-limiting resistance as Control and Feedback sampling resistor R4 as feedback sample resistance.Be parallel on the sample circuit of switching power circuit after triode Q6 and 4 series connection of feedback sample resistance R, this MCU output signal end is connected with the base stage of triode Q6 by triode Q7.Utilize MCU one tunnel output as control end, the size of the sampling divider resistance by changing Switching Power Supply is come the size of the output voltage of by-pass cock power supply with this.
As shown in Figure 2, the output signal end of this MCU is connected with the base stage of triode Q7 by current-limiting resistance R6, the collector of triode Q7 connects the base stage of triode Q6 by current-limiting resistance R5, triode Q7 grounded emitter, the collector of triode Q6 is connected with resistance R 4.
Wherein triode Q6 is as the switch of Control and Feedback sampling resistor R4 access, and when triode Q6 conducting ,+12V voltage directly is added on the MCU pin, can burn out MCU, avoids pin contact+12V voltage so increase triode Q7 switch, protection MCU.
When relay does not have the adhesive action, provide STANDBY signal controlling triode Q7 conducting by MCU, triode Q6 conducting thereupon, be equivalent to resistance R 3 and R4 parallel connection like this, it is big that the feedback sample of Switching Power Supply becomes thereupon, Switching Power Supply is adjusted duty cycle of switching or frequency, reaches the purpose that lowers output voltage.
When relay needs adhesive, the STANDBY of MCU output is low, thereby control triode Q7 turn-offs, triode Q6 turn-offs thereupon, disconnects parallel resistor R4, and feedback sample diminishes, Switching Power Supply is adjusted duty cycle of switching or frequency, supply voltage switch is risen to+12V, treat that the stable back of voltage MCU provides relay adhesive instruction, provides the RELAY_CIRCUIT signal by control circuit and makes the relay adhesive.Treat that the relay adhesive repeats to reduce when above no adhesive is moved the process of keeping voltage after stable again.
The above only is preferred embodiment of the present utility model, and protection domain of the present utility model is not limited thereto, and anyly all belongs within the utility model protection domain based on the equivalent transformation on the technical solutions of the utility model.
Claims (7)
1. the controller energy saver of a tape relay, it comprises switching power circuit and MCU control circuit, it is characterized in that, described MCU control circuit comprises MCU, triode Q6 and feedback sample resistance R 4, the road output of MCU is as control end, connect the triode Q6 and the feedback sample resistance R 4 of series connection, the MCU output signal end is connected with the base stage of triode Q6, and the triode Q6 of series connection and feedback sample resistance R 4 are also linked switching power circuit.
2. controller energy saver as claimed in claim 1 is characterized in that described switching power circuit comprises feedback sample resistance R 3, and the triode Q6 and the feedback sample resistance R 4 of series connection are in parallel with feedback sample resistance R 3.
3. the controller energy saver of tape relay as claimed in claim 1, it is characterized in that this MCU is connected with triode Q6 by triode Q7, the MCU output signal end is connected with the base stage of triode Q7, the collector of triode Q7 connects the base stage of triode Q6, the grounded emitter of triode Q7.
4. the controller energy saver of tape relay as claimed in claim 3 is characterized in that, this MCU is connected with the base stage of triode Q7 by current-limiting resistance R6.
5. the controller energy saver of tape relay as claimed in claim 4 is characterized in that, the collector of this triode Q7 connects the base stage of triode Q6 by current-limiting resistance R5.
6. the controller energy saver of tape relay as claimed in claim 5 is characterized in that, this triode Q6 is the positive-negative-positive triode.
7. the controller energy saver of tape relay as claimed in claim 5 is characterized in that, this triode Q7 is a NPN type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200586667U CN201436608U (en) | 2009-06-17 | 2009-06-17 | Controller energy saving device equipped with a relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200586667U CN201436608U (en) | 2009-06-17 | 2009-06-17 | Controller energy saving device equipped with a relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201436608U true CN201436608U (en) | 2010-04-07 |
Family
ID=42373057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200586667U Expired - Lifetime CN201436608U (en) | 2009-06-17 | 2009-06-17 | Controller energy saving device equipped with a relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201436608U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403236A (en) * | 2020-03-17 | 2020-07-10 | 厦门华联电子股份有限公司 | Relay control circuit and relay |
-
2009
- 2009-06-17 CN CN2009200586667U patent/CN201436608U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403236A (en) * | 2020-03-17 | 2020-07-10 | 厦门华联电子股份有限公司 | Relay control circuit and relay |
| CN111403236B (en) * | 2020-03-17 | 2022-07-22 | 厦门华联电子股份有限公司 | Relay control circuit and relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100407 |
|
| CX01 | Expiry of patent term |