CN110621104A - Circuit for reducing standby power consumption and electronic equipment - Google Patents
Circuit for reducing standby power consumption and electronic equipment Download PDFInfo
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- CN110621104A CN110621104A CN201910885105.2A CN201910885105A CN110621104A CN 110621104 A CN110621104 A CN 110621104A CN 201910885105 A CN201910885105 A CN 201910885105A CN 110621104 A CN110621104 A CN 110621104A
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- power consumption
- alternating current
- standby power
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Abstract
The invention discloses a circuit and electronic equipment for reducing standby power consumption, which relate to the technical field of LED driving power supplies and comprise: the device comprises an EMC circuit, an alternating current-direct current converter, a control chip, an AC-3.3V converter, a controlled silicon and an optical coupler; one end of the EMC circuit is connected with 220V alternating current, the other end of the EMC circuit is connected with one end of an alternating current-direct current converter through a controlled silicon, the other end of the alternating current-direct current converter is connected with an LED load, a control end of the control chip is connected with a first end of an optical coupler, and a second end of the optical coupler is connected with a control end of the controlled silicon; one end of the AC-3.3V converter is connected with the other end of the EMC circuit, and the other end of the AC-3.3V converter is connected with a power supply end of the control chip; the circuit structure can reduce power consumption and realize energy-saving effect in a standby state; the problem that the lamp beads are slightly bright when the lamp is not turned off in an isolating mode is solved, and the phenomenon that a terminal user mistakenly thinks that the lamp is not turned off can be avoided.
Description
Technical Field
The invention relates to the technical field of LED driving power supplies, in particular to a circuit and an electronic device for reducing standby power consumption.
Background
At present, a commonly used circuit is shown in fig. 1, and its operating principle is as follows: the input alternating current 220V is converted into 3.3V, power is supplied to the intelligent module, and the current of the AC-DC module is controlled through the PWM signal, so that the dimming function is realized; the circuit structure has the following defects: 2.4 power of LED intelligent remote control dimming products such as 2.4G, wifi, Bluetooth and the like is higher when the LED intelligent remote control dimming products are in standby, and the power reaches more than 1W; the problem that lamp beads are slightly bright under the condition that the existing non-isolated product is used for turning off a lamp.
Disclosure of Invention
The invention provides a circuit and an electronic device for reducing standby power consumption aiming at the problems of the background art, so as to reduce standby power and solve the problem of slight brightness of lamp beads during non-isolated shutdown;
in order to achieve the above object, the present invention provides a circuit for reducing standby power consumption, comprising: the device comprises an EMC circuit, an alternating current-direct current converter, a control chip, an AC-3.3V converter, a controlled silicon and an optical coupler;
one end of the EMC circuit is connected with 220V alternating current, the other end of the EMC circuit is connected with one end of an alternating current-direct current converter through a controlled silicon, the other end of the alternating current-direct current converter is connected with an LED load, a control end of the control chip is connected with a first end of an optical coupler, and a second end of the optical coupler is connected with a control end of the controlled silicon; one end of the AC-3.3V converter is connected with the other end of the EMC circuit, and the other end of the AC-3.3V converter is connected with a power supply end of the control chip.
Preferably, the circuit further comprises a first resistor, and the first resistor is arranged between the control end of the control chip and the first end of the optical coupler.
Preferably, the second terminal of the optocoupler is also connected to the other terminal of the EMC circuit.
Preferably, the optical coupler is provided with a third end, and the third end is connected with one end of the alternating current-direct current converter.
Preferably, the circuit further comprises a second resistor disposed between the second end of the optocoupler and the other end of the EMC circuit.
Preferably, the circuit further includes a third resistor disposed between the third end of the optocoupler and one end of the ac-dc converter.
The invention also provides an electronic device comprising the circuit for reducing the standby power consumption.
The invention provides a circuit and electronic equipment for reducing standby power consumption, wherein the circuit structure can reduce power consumption and realize energy-saving effect in a standby state; the problem that the lamp beads are slightly bright when the lamp is not turned off in an isolating mode is solved, and the phenomenon that a terminal user mistakenly thinks that the lamp is not turned off can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art power circuit configuration;
FIG. 2 is a schematic diagram of a circuit for reducing standby power consumption according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an electronic device according to an embodiment of the invention;
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a circuit for reducing standby power consumption;
in a first preferred embodiment of the present invention, as shown in fig. 2, the present invention comprises: the circuit comprises an EMC circuit, an alternating current-direct current converter (AC-DC), a control chip, an AC-3.3V converter, a thyristor Q4 and an optical coupler U8;
one end of the EMC circuit is connected with 220V Alternating Current (AC), the other end of the EMC circuit is connected with one end of an alternating current-direct current converter (AC-DC) through a thyristor, the other end of the alternating current-direct current converter (AC-DC) is connected with an LED load, the control end of the control chip is connected with the first end (the 1 st pin) of the optical coupler U8, and the second end (the 4 th pin) of the optical coupler U8 is connected with the control end of the thyristor Q4; one end of the AC-3.3V converter is connected with the other end of the EMC circuit, and the other end of the AC-3.3V converter is connected with a power supply end of the control chip to provide a 3.3V working power supply for the control chip;
in the embodiment of the invention, the controllable silicon Q4 adopts BTA204S-600D, and the optical coupler U8 adopts CT3063 model;
in the embodiment of the present invention, the circuit further includes a first resistor R51(100R/0603), and the first resistor R51 is disposed between the control terminal of the control chip and the first terminal (the 1 st pin) of the optocoupler U8.
In the embodiment of the invention, the second end (pin 4) of the optical coupler U8 is also connected to the other end of the EMC circuit.
In the embodiment of the present invention, the optical coupler U8 is provided with a third end (pin 6), and the third end (pin 6) is connected to one end of an alternating current-direct current converter (AC-DC).
In the embodiment of the invention, the circuit further comprises a second resistor R54(100/1/2W), and the second resistor R54 is arranged between the second end (the 4 th pin) of the optocoupler U8 and the other end of the EMC circuit.
In the embodiment of the invention, the circuit further includes a third resistor R53(1K/1/2W), and the third resistor R53 is disposed between the third terminal (the 6 th pin) of the optocoupler U8 and one terminal of an alternating current-direct current converter (AC-DC).
In the embodiment of the invention, the controllable silicon Q4 plays a role of switching in a circuit, and the method comprises the following specific steps:
in the first case: when the device is in a power-on state, an alternating current-direct current converter (AC-DC) works, an optical coupler U8 works through a control signal of a control chip, and an optical coupler U8 drives a silicon controlled rectifier Q4 to be in a conducting state;
in the second case: when in a standby state, an alternating current-direct current converter (AC-DC) does not work, the optocoupler U8 stops working through a control signal of a control chip, and the controllable silicon Q4 is in a closed state;
under the second condition, because the controlled silicon Q4 is in the off state, the alternating current-direct current converter (AC-DC) has zero power consumption, and only the AC-3.3V converter and the control chip work, thereby realizing the reduction of the standby power; in addition, the controllable silicon Q4 disconnects the bus, so that the problem that the lamp beads are slightly bright when the device is not in isolated shutdown is solved.
The invention also provides an electronic device;
in a second preferred embodiment of the present invention, as shown in fig. 3, the electronic device includes the circuit for reducing standby power consumption as described above; specific technical details have been set forth above in detail, and are not repeated here;
the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A circuit for reducing standby power consumption, comprising: the device comprises an EMC circuit, an alternating current-direct current converter, a control chip and an AC-3.3V converter, and is characterized by also comprising a silicon controlled rectifier and an optical coupler;
one end of the EMC circuit is connected with 220V alternating current, the other end of the EMC circuit is connected with one end of an alternating current-direct current converter through a controlled silicon, the other end of the alternating current-direct current converter is connected with an LED load, a control end of the control chip is connected with a first end of an optical coupler, and a second end of the optical coupler is connected with a control end of the controlled silicon; one end of the AC-3.3V converter is connected with the other end of the EMC circuit, and the other end of the AC-3.3V converter is connected with a power supply end of the control chip.
2. The circuit of claim 1, further comprising a first resistor disposed between the control terminal of the control chip and the first terminal of the optocoupler.
3. The circuit for reducing standby power consumption of claim 1, wherein said second terminal of said optocoupler is further connected to another terminal of said EMC circuit.
4. The circuit for reducing standby power consumption according to claim 1, wherein the optocoupler is provided with a third terminal, and the third terminal is connected to one terminal of the ac-dc converter.
5. The circuit for reducing standby power consumption of claim 3, further comprising a second resistor disposed between the second end of the optocoupler and the other end of the EMC circuit.
6. The circuit for reducing standby power consumption according to claim 4, further comprising a third resistor disposed between the third terminal of the optocoupler and the terminal of the AC/DC converter.
7. An electronic device comprising a circuit for reducing standby power consumption as claimed in claims 1 to 6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910446830 | 2019-05-27 | ||
| CN201910446830X | 2019-05-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110621104A true CN110621104A (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910885105.2A Pending CN110621104A (en) | 2019-05-27 | 2019-09-19 | Circuit for reducing standby power consumption and electronic equipment |
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| CN (1) | CN110621104A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509988A (en) * | 2020-05-22 | 2020-08-07 | 宁波奥克斯电气股份有限公司 | Low-power-consumption circuit system, control method, air conditioner and storage medium |
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| CN101256394A (en) * | 2008-03-26 | 2008-09-03 | 广州蓝朝电子科技有限公司 | Standby control apparatus with certain nought power consumption |
| CN201750360U (en) * | 2010-06-13 | 2011-02-16 | 苏州市华隆电器有限责任公司 | Low-power consumption standby DC power supply |
| EP2400819A2 (en) * | 2009-02-17 | 2011-12-28 | Luminature Co., Ltd. | Power-saving led lighting apparatus |
| CN203761356U (en) * | 2014-02-28 | 2014-08-06 | 刘举柱 | Zero-power consumption stand-by solid-state relay |
| CN203786494U (en) * | 2013-12-28 | 2014-08-20 | 东莞市盈聚电子有限公司 | Switch power supply zero-standby power consumption circuit |
| CN104950772A (en) * | 2015-06-25 | 2015-09-30 | 佛山市顺德区美的洗涤电器制造有限公司 | Dish washing machine as well as stand-by power consumption control device and method thereof |
| US9325254B2 (en) * | 2013-11-26 | 2016-04-26 | Silergy Semiconductor Technology (Hangzhou) Ltd. | SCR dimming circuit and dimming control method |
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2019
- 2019-09-19 CN CN201910885105.2A patent/CN110621104A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101256394A (en) * | 2008-03-26 | 2008-09-03 | 广州蓝朝电子科技有限公司 | Standby control apparatus with certain nought power consumption |
| EP2400819A2 (en) * | 2009-02-17 | 2011-12-28 | Luminature Co., Ltd. | Power-saving led lighting apparatus |
| CN201750360U (en) * | 2010-06-13 | 2011-02-16 | 苏州市华隆电器有限责任公司 | Low-power consumption standby DC power supply |
| US9325254B2 (en) * | 2013-11-26 | 2016-04-26 | Silergy Semiconductor Technology (Hangzhou) Ltd. | SCR dimming circuit and dimming control method |
| CN203786494U (en) * | 2013-12-28 | 2014-08-20 | 东莞市盈聚电子有限公司 | Switch power supply zero-standby power consumption circuit |
| CN203761356U (en) * | 2014-02-28 | 2014-08-06 | 刘举柱 | Zero-power consumption stand-by solid-state relay |
| CN104950772A (en) * | 2015-06-25 | 2015-09-30 | 佛山市顺德区美的洗涤电器制造有限公司 | Dish washing machine as well as stand-by power consumption control device and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111509988A (en) * | 2020-05-22 | 2020-08-07 | 宁波奥克斯电气股份有限公司 | Low-power-consumption circuit system, control method, air conditioner and storage medium |
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Application publication date: 20191227 |
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