CN102300068B - Energy-saving standby circuit for television - Google Patents
Energy-saving standby circuit for television Download PDFInfo
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- CN102300068B CN102300068B CN 201110275707 CN201110275707A CN102300068B CN 102300068 B CN102300068 B CN 102300068B CN 201110275707 CN201110275707 CN 201110275707 CN 201110275707 A CN201110275707 A CN 201110275707A CN 102300068 B CN102300068 B CN 102300068B
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Abstract
The invention discloses an energy-saving standby circuit for a television. The energy-saving standby circuit comprises a central processing unit (CPU) forming a television control circuit, a light-coupled switch circuit, a voltage transformation circuit and a demagnetization circuit, wherein the light-coupled switch circuit controls the on-off of the voltage transformation circuit; the voltage transformation circuit is provided with a low voltage output circuit comprising 5V-level voltage output and 10V-level voltage output, and 110V-level output; and the 5V-level voltage output is connected with one path of power input of the CPU. The energy-saving standby circuit is characterized in that: the 110V-level output is connected with one input end of a power supply of the light-coupled switch circuit by a resistive divider of a resistive divider group; the other input end of the power supply of the light-coupled switch circuit is connected with a voltage regulation circuit and the electrical signal output of the switch circuit; the electrical signal output of the switch circuit is connected with the low voltage output circuit by an electronic switch circuit; the electrical signal input end of the switch circuit is connected with the control signal output of the CPU, and is provided with a lower-than-5V-level power circuit; and the power input of the lower-than-5V-level power circuit is connected with the 110V-level output, and the power output of the lower-than-5V-level power circuit is connected with the 5V-level voltage output of the voltage transformation circuit. Compared with the prior art, the circuit has the advantage of reducing the standby power of the television to be below 4W even 1W.
Description
Technical field
The present invention relates to a kind of circuit.
Background technology
Existing energy-saving standby circuit for television generally is the energy consumption that the magnitude of current of the circuit when reducing standby reduces standby, can only consume when this kind method can make standby drops to about 5W, if it is impossible reducing energy consumption by the mode of further reduction electric current, because, recover the front running status of standby when guaranteeing to start shooting, control circuit must have enough current drives.Up to the present, also there is not effective technological means to be reduced to stand-by power consumption below the 4W or even below the 1W.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of energy-saving standby circuit for television that can effectively TV standby power be dropped to below the 4W.
The present invention realizes like this, comprise the CPU that consists of the television set control circuit, the optical coupling switching circuit, transforming circuit, degaussing circuit, leading to of optical coupling switching circuit control transforming circuit, disconnected, transforming circuit is provided with and comprises 5 volts of step voltage outputs, the low voltage output circuit of 10 volts of step voltage outputs and the output of 110V level, 5 volts of step voltage outputs link to each other with the wherein power supply input of CPU, its special feature is that the output of 110V level links to each other with a wherein input of the power supply of optical coupling switching circuit by the divider resistance R1 of divider resistance group, output links to each other another input of the power supply of optical coupling switching circuit with the switching circuit signal of telecommunication with regulating circuit respectively, the signal of telecommunication output of switching circuit links to each other with low voltage output circuit by electronic switching circuit, the electric signal input end of switching circuit links to each other with the output of the control signal of CPU, regulating circuit comprises the divider resistance group of serial connection, triode GB1, voltage stabilizing didoe D1, the output of 110V level links to each other with the base stage of triode GB1 by the divider resistance R2 of the divider resistance group of serial connection, the collector electrode of triode GB1 links to each other with another input of the power supply of optical coupling switching circuit, the emitter of triode GB1 links to each other with the output of 110V level by voltage stabilizing didoe D1 ground connection and by resistance R 3 respectively, be provided with little 5 volts of level power supply circuit, the power supply input of little 5 volts of level power supply circuit links to each other with the output of 110V level, and the power supply output of little 5 volts of level power supply circuit links to each other with 5 volts of step voltage outputs of transforming circuit.During work, when normal boot-strap is worked, CPU does not send open circuit signaling to switching circuit, switching circuit is opened circuit, the optical coupling switching circuit forms closed circuit by regulating circuit, under the control of regulating circuit, 110V out-put supply when the 110V level is exported to work, when standby, CPU sends open circuit signaling to switching circuit, make the switching circuit open circuit, the power supply input of optical coupling switching circuit forms closed circuit by switching circuit, like this, under the effect of divider resistance R1, the output voltage of 110V level output is compressed to 10V, simultaneously, the switching circuit open circuit sends the signal of telecommunication to electronic switching circuit, disconnect the power supply output of low voltage output circuit by electronic switching circuit, cause the voltage of all power supplys outputs of transforming circuit very low, can not drive each circuit of corresponding formation television set control circuit, thereby make the stand-by power consumption of television set very low, can drop to below the 4W, at this moment, little 5 volts of level power supply circuit are also powered to the core of CPU, to keep MIN memory and the control of CPU, guarantee the front state of standby of getting back to when television set recovers normal operation; When the needs television set recovers normal operation, send closed circuit signaling by CPU to switching circuit, switching circuit is opened circuit, all power supply outputs recover normal power source output, because 5 volts of step voltage outputs of transforming circuit are higher than the output voltage of little 5 volts of level power supply circuit, thereby suppress the output of little 5 volts of level power supply circuit, and export enough large source current to the circuit of corresponding formation television set control circuit.Because only to the core power supply of CPU, to keep MIN memory and the control of CPU, therefore, needed source current is little, can adopt simple power circuit just can meet the demands for little 5 volts of level power supply circuit, therefore, cost is low.
Here, in order further to reduce stand-by power consumption, the power supply input string of degaussing circuit is connected to relay, and the control power supply input of relay links to each other with 10 volts of step voltage outputs of transforming circuit.During standby, comprise that 10 volts of step voltage outputs of transforming circuit do not have electric current output, be not enough to drive relay, relay switch is disconnected, like this, degaussing circuit is just no longer worked, thereby the power-dissipation-reduced when making standby is to 1W.
Here, regulate for convenient, the divider resistance R2 of the divider resistance group of serial connection is adjustable resistance.Like this, by adjustable resistance R2, the output voltage that can guarantee 110V level out-put supply smoothly at 110V to smoothly conversion between 10V.
Compared with the prior art the present invention has and can effectively TV standby power be dropped to below the 4W, or even the following advantage of 1W.
Description of drawings:
Fig. 1 is circuit diagram of the present invention;
Fig. 2 is the enlarged drawing of Figure 1A part.
Embodiment:
Now in conjunction with the accompanying drawings and embodiments the present invention is done and describes in further detail:
Such as Fig. 1, shown in 2, the present invention includes the CPU1 that consists of the television set control circuit, optical coupling switching circuit 2, transforming circuit 3, degaussing circuit 10, leading to of optical coupling switching circuit 2 control transforming circuits 3, disconnected, transforming circuit 3 is provided with and comprises 5 volts of step voltage outputs 4, the low-voltage output of 10 volts of step voltage outputs 5 and the output of 110V level and other Voltage-output, with the various circuit supplies to the formation TV set circuit, 5 volts of step voltage outputs 4 link to each other with the wherein power supply input of CPU1, its special feature is that the output of 110V level is by the resistance R 12 by serial connection, the divider resistance R1 of the divider resistance group that R1 consists of links to each other with a wherein input of the power supply of optical coupling switching circuit 2, resistance R 12 ground connection, another input of the power supply of optical coupling switching circuit 2 links to each other with switching circuit 7 with regulating circuit 6 respectively, the signal of telecommunication output of switching circuit 7 is by diode D4, electronic switching circuit 11 links to each other with low voltage output circuit, electronic switching circuit 11 is triode GB4, switching circuit 7 is triode GB2, the base stage of triode GB2 (electric signal input end) links to each other with the control signal output of CPU by divider resistance R4, the grounded emitter of triode GB2, the collector electrode of triode GB2 links to each other with another input of the power supply of optical coupling switching circuit 2 by diode D2, the divider resistance R5 ground connection that is connected in series with divider resistance R4, regulating circuit 6 comprises the divider resistance group of serial connection, triode GB1, voltage stabilizing didoe D1, the output of 110V level links to each other with the base stage of triode GB1 by the divider resistance R2 of the divider resistance group of serial connection, the collector electrode of triode GB1 links to each other with another input of the power supply of optical coupling switching circuit 2, the emitter of triode GB1 links to each other with the output of 110V level by voltage stabilizing didoe D1 ground connection and by resistance R 3 respectively, consist of another resistance R 22 ground connection of the divider resistance group of serial connection, be provided with little 5 volts of level power supply circuit 8, the power supply input of little 5 volts of level power supply circuit 8 links to each other with the output of 110V level, and the power supply output of little 5 volts of level power supply circuit links to each other with 5 volts of step voltage outputs of transforming circuit.
The power supply input string of degaussing circuit 10 is connected to relay 9, and the control power supply input of relay 9 links to each other with 10 volts of step voltage outputs 5 of transforming circuit 3.
The divider resistance R2 of the divider resistance group of serial connection is adjustable resistance.
Little 5 volts of level power supply circuit 8 comprise resistance R 6, R7, voltage stabilizing didoe D3, triode GB3, resistance R 6 one ends link to each other with the output of 110V level, the other end links to each other with the collector electrode of triode GB3, by two and resistance R 7 one ends that consist of of the resistance that connects link to each other with the output of 110V level, the other end links to each other with the base stage of triode GB3 and the wherein end of voltage stabilizing didoe D3 respectively, the other end ground connection of voltage stabilizing didoe D3, the emitter of triode GB3 links to each other with 5 volts of step voltage outputs 4 of transforming circuit.
Claims (8)
1. energy-saving standby circuit for television, comprise the CPU that consists of the television set control circuit, the optical coupling switching circuit, transforming circuit, degaussing circuit, leading to of optical coupling switching circuit control transforming circuit, disconnected, transforming circuit is provided with and comprises 5 volts of step voltage outputs, the low voltage output circuit of 10 volts of step voltage outputs and the output of 110V level, 5 volts of step voltage outputs link to each other with the wherein power supply input of CPU, it is characterized in that the output of 110V level links to each other with a wherein input of the power supply of optical coupling switching circuit by the divider resistance R1 of divider resistance group, output links to each other another input of the power supply of optical coupling switching circuit with the switching circuit signal of telecommunication with regulating circuit respectively, the signal of telecommunication output of switching circuit links to each other with low voltage output circuit by electronic switching circuit, the electric signal input end of switching circuit links to each other with the output of the control signal of CPU, regulating circuit comprises the divider resistance group of serial connection, triode GB1, voltage stabilizing didoe D1, the output of 110V level links to each other with the base stage of triode GB1 by the divider resistance R2 of the divider resistance group of serial connection, the collector electrode of triode GB1 links to each other with another input of the power supply of optical coupling switching circuit, the emitter of triode GB1 links to each other with the output of 110V level by voltage stabilizing didoe D1 ground connection and by resistance R 3 respectively, be provided with little 5 volts of level power supply circuit, the power supply input of little 5 volts of level power supply circuit links to each other with the output of 110V level, and the power supply output of little 5 volts of level power supply circuit links to each other with 5 volts of step voltage outputs of transforming circuit.
2. energy-saving standby circuit for television according to claim 1 is characterized in that the power supply input string of degaussing circuit is connected to relay, and the control power supply input of relay links to each other with 10 volts of step voltage outputs of transforming circuit.
3. energy-saving standby circuit for television according to claim 1 and 2 is characterized in that the divider resistance R2 of the divider resistance group that is connected in series is adjustable resistance.
4. energy-saving standby circuit for television according to claim 1 and 2, it is characterized in that little 5 volts of level power supply circuit comprise resistance R 6, R7, voltage stabilizing didoe D3, triode GB3, resistance R 6 one ends link to each other with the output of 110V level, the other end links to each other with the collector electrode of triode GB3, by two and resistance R 7 one ends that consist of of the resistance that connects link to each other with the output of 110V level, the other end links to each other with the base stage of triode GB3 and the wherein end of voltage stabilizing didoe D3 respectively, the other end ground connection of voltage stabilizing didoe D3, the emitter of triode GB3 links to each other with 5 volts of step voltage outputs of transforming circuit.
5. energy-saving standby circuit for television according to claim 3, it is characterized in that little 5 volts of level power supply circuit comprise resistance R 6, R7, voltage stabilizing didoe D3, triode GB3, resistance R 6 one ends link to each other with the output of 110V level, the other end links to each other with the collector electrode of triode GB3, by two and resistance R 7 one ends that consist of of the resistance that connects link to each other with the output of 110V level, the other end links to each other with the base stage of triode GB3 and the wherein end of voltage stabilizing didoe D3 respectively, the other end ground connection of voltage stabilizing didoe D3, the emitter of triode GB3 links to each other with 5 volts of step voltage outputs of transforming circuit.
6. according to claim 1 and 2 or 5 described energy-saving standby circuit for televisions, it is characterized in that electronic switching circuit is triode GB4.
7. energy-saving standby circuit for television according to claim 3 is characterized in that electronic switching circuit is triode GB4.
8. energy-saving standby circuit for television according to claim 4 is characterized in that electronic switching circuit is triode GB4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110275707 CN102300068B (en) | 2011-09-17 | 2011-09-17 | Energy-saving standby circuit for television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110275707 CN102300068B (en) | 2011-09-17 | 2011-09-17 | Energy-saving standby circuit for television |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102300068A CN102300068A (en) | 2011-12-28 |
| CN102300068B true CN102300068B (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110275707 Expired - Fee Related CN102300068B (en) | 2011-09-17 | 2011-09-17 | Energy-saving standby circuit for television |
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| CN (1) | CN102300068B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2419765Y (en) * | 2000-02-02 | 2001-02-14 | 海信集团公司 | Low power consumption power supply for television set at ready status |
| JP3614693B2 (en) * | 1999-01-13 | 2005-01-26 | 三菱電機株式会社 | Power control device |
| CN200950637Y (en) * | 2006-09-26 | 2007-09-19 | 青岛海信电器股份有限公司 | Low-power consumption standing circuit and television set having the same |
| CN201869300U (en) * | 2010-10-29 | 2011-06-15 | 深圳创维－Rgb电子有限公司 | Standby energy saving circuit, LED television power supply and LED television |
| CN202197358U (en) * | 2011-09-17 | 2012-04-18 | 广东佳明电器有限公司 | Energy-saving standby circuit for television |
-
2011
- 2011-09-17 CN CN 201110275707 patent/CN102300068B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3614693B2 (en) * | 1999-01-13 | 2005-01-26 | 三菱電機株式会社 | Power control device |
| CN2419765Y (en) * | 2000-02-02 | 2001-02-14 | 海信集团公司 | Low power consumption power supply for television set at ready status |
| CN200950637Y (en) * | 2006-09-26 | 2007-09-19 | 青岛海信电器股份有限公司 | Low-power consumption standing circuit and television set having the same |
| CN201869300U (en) * | 2010-10-29 | 2011-06-15 | 深圳创维－Rgb电子有限公司 | Standby energy saving circuit, LED television power supply and LED television |
| CN202197358U (en) * | 2011-09-17 | 2012-04-18 | 广东佳明电器有限公司 | Energy-saving standby circuit for television |
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| Publication number | Publication date |
|---|---|
| CN102300068A (en) | 2011-12-28 |
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