CN202837893U - Switching circuit without stand-by power consumption - Google Patents
Switching circuit without stand-by power consumption Download PDFInfo
- Publication number
- CN202837893U CN202837893U CN 201220413063 CN201220413063U CN202837893U CN 202837893 U CN202837893 U CN 202837893U CN 201220413063 CN201220413063 CN 201220413063 CN 201220413063 U CN201220413063 U CN 201220413063U CN 202837893 U CN202837893 U CN 202837893U
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- circuit
- control circuit
- mcu control
- power supply
- triode thyristor
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Abstract
The utility model discloses a switching circuit without stand-by power consumption. The switching circuit is characterized by comprising an MCU (micro-programmed control unit) control circuit, a circuit switch control circuit and a stabilized voltage power circuit for supplying electricity for the MCU control circuit, wherein the circuit switch control circuit comprises a keying switch and a silicon controlled rectifier, two main terminals of the silicon controlled rectifier are connected in an AC power supply circuit in series, the control electrode of the silicon controlled rectifier is connected with the keying switch through a load, the stabilized voltage power circuit is located in the AC power supply circuit to provide electricity for the MCU control circuit, the MCU control circuit is connected with the circuit switch control circuit, and the silicon controlled rectifier is triggered according to a level signal of the keying switch. The switching circuit without stand-by power consumption is simple in structure and long in service life, and the silicon controlled rectifier and a singelchip are used as core control elements, so that the cost is low.
Description
Technical field
The utility model relates to a kind of readiness control circuit of household electric appliance, especially a kind of on-off circuit of no standby power.
Background technology
The stand-by power consumption of most of electric equipment products is at 3W-26W in the market, and its high power standby not only takes electricity, and the heat of standby may bring the potential safety hazard of catching fire.According to internal authority mechanism statistics, standby energy consumption has accounted for 3%～13% of civilian power consumption, accounts for 2% of gross generation.China's household electrical appliances One's name is legion, the standby energy consumption total amount is huge.According to the Chinese power supply deputy secretary-general of association introduction: even also be a considerable numeral highly paying attention to energy-conservation western countries' idling consumption.According to U.S. statistics, hundred million dollars of the annual 35-54 of this loss of the U.S., according to the investigation of German environmental protection mechanism, annual 2300000000 dollars of this loss surpasses Berlin Urban Annual Electrical Power Consumption total amount.An investigation demonstration, the family appliance standby energy consumption accounts for about 10% of Chinese family power consumption.According to the energy-conservation authentication center of China China's family appliance standby energy consumption and energy-saving potential are investigated rear the discovery, the standby energy consumption of the audio-visual products such as TV, sound equipment accounts for 68.6% of total standby energy consumption, the television standby energy consumption accounts for the largest percentage in family's standby energy consumption, and average standby power is 8.07W.Along with the growing tension of the energy, the standby energy consumption of household electrical appliance and standby safety problem are causing the extensive concern of entire society.Reducing the household electrical appliance standby energy consumption and mean that not only the consumer saves the electricity consumption spending, to alleviating the Pressure on Energy that is becoming tight day positive role is arranged, more directly is to have reduced energy dissipation and environmental protection pressure." non-intrinsically safe safety " with the AC power standby, the annual equipment loss that causes therefrom, maintenance cost and the maintenance workload of household electrical appliances producer are very big.
Although prior art can reduce stand-by power consumption, because circuit is complicated, components and parts are more, generally can not accomplish Zero-power-consumption standby fully, generally all can only accomplish about 0.5W.
Summary of the invention
The utility model purpose is: provide a kind of on-off circuit of no standby power, the circuit complexity that exists to solve prior art, the problem that components and parts are more.
The technical solution of the utility model is: a kind of on-off circuit of no standby power, it is characterized in that, comprise MCU control circuit, contactor control circuit and be the voltage-stabilized power supply circuit of described MCU control circuit power supply, described contactor control circuit comprises keyswitch and bidirectional triode thyristor, two main terminals of bidirectional triode thyristor are connected in the AC feed circuit, and its control utmost point links to each other with keyswitch by load; Described voltage-stabilized power supply circuit is arranged in the AC feed circuit, is described MCU control circuit power supply; Described MCU control circuit links to each other with the contactor control circuit, can bidirectional triode thyristor be triggered according to the level signal of keyswitch.
Further, also comprise zero cross detection circuit, described zero cross detection circuit links to each other with MCU control circuit and contactor control circuit, and the processor in the MCU control circuit can trigger bidirectional triode thyristor according to the signal of zero cross detection circuit.
Further, described voltage-stabilized power supply circuit comprises rectification circuit, filtering circuit and mu balanced circuit.
Further, the microprocessor of described MCU control circuit is single-chip microcomputer.
Further, also comprise the indicating circuit by LED, described LED indicating circuit links to each other with the MCU control circuit.
The utility model has the advantages that: simple in structure, without standby merit, long service life, use controllable silicon and single-chip microcomputer as kernel control chip, cost is low.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the on-off circuit system architecture diagram of no standby power of the present utility model.
Embodiment
Embodiment: the on-off circuit of no standby power as shown in Figure 1 comprises MCU control circuit, contactor control circuit and is the voltage-stabilized power supply circuit of MCU control circuit power supply, the contactor control circuit comprises keyswitch and bidirectional triode thyristor, two main terminals of bidirectional triode thyristor are connected in the AC feed circuit, and its control utmost point links to each other with keyswitch by load; Voltage-stabilized power supply circuit is arranged in the AC feed circuit, is the power supply of MCU control circuit; The MCU control circuit links to each other with the contactor control circuit, can bidirectional triode thyristor be triggered according to the level signal of keyswitch.When pushing button K switch 1, the loop conducting at keyswitch K1 and bidirectional triode thyristor place, two main terminal conductings of bidirectional triode thyristor, whole circuit is started working, voltage-stabilized power supply circuit is started working and is powered to the MCU control circuit simultaneously, and the conducting of MCU control circuit control bidirectional triode thyristor is when unclamping keyswitch K1, the not conducting of loop at keyswitch K1 and bidirectional triode thyristor place, main circuit works on.When the needs shut-off circuit, the K switch 1 that again pushes button, level signal of MCU control circuit is given in the loop conducting at keyswitch K1 and bidirectional triode thyristor place simultaneously, and the MCU control circuit turn-offs according to this signal controlling bidirectional triode thyristor.Further; in order to protect bidirectional triode thyristor; the utility model has also comprised zero cross detection circuit; the effect of zero cross detection circuit is the zero crossing that detects alternating current; near conducting when making MCU control bidirectional triode thyristor the zero point of alternating current is to prevent because of the excessive bidirectional triode thyristor that burns out of conducting immediate current.The core devices of MCU control circuit can be single-chip microcomputer, and perhaps other can realize the device of this function.In order to see more intuitively the state of circuit, can also add the LED indicating circuit, the LED indicating circuit uses triode and the diode of giving out light, and adopts the different state of light emitting diode indication of different colours.Voltage-stabilized power supply circuit in the present embodiment comprises rectification circuit, filtering circuit and mu balanced circuit, is used for alternating current is carried out rectification, filtering and voltage stabilizing also to the power supply of MCU control circuit.Rectification circuit wherein, filtering circuit and mu balanced circuit can be the existing any circuit that can realize this function.
Above embodiment only is the utility model a kind of embodiment wherein, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (5)
1. the on-off circuit of a no standby power, it is characterized in that, comprise MCU control circuit, contactor control circuit and be the voltage-stabilized power supply circuit of described MCU control circuit power supply, described contactor control circuit comprises keyswitch and bidirectional triode thyristor, two main terminals of bidirectional triode thyristor are connected in the AC feed circuit, and its control utmost point links to each other with keyswitch by load; Described voltage-stabilized power supply circuit is arranged in the AC feed circuit, is described MCU control circuit power supply; Described MCU control circuit links to each other with the contactor control circuit, can bidirectional triode thyristor be triggered according to the level signal of keyswitch.
2. the on-off circuit of no standby power according to claim 1, it is characterized in that, also comprise zero cross detection circuit, described zero cross detection circuit links to each other with MCU control circuit and contactor control circuit, and the processor in the MCU control circuit can trigger bidirectional triode thyristor according to the signal of zero cross detection circuit.
3. the on-off circuit of no standby power according to claim 1 is characterized in that, described voltage-stabilized power supply circuit comprises rectification circuit, filtering circuit and mu balanced circuit.
4. the on-off circuit of no standby power according to claim 1 is characterized in that, the microprocessor of described MCU control circuit is single-chip microcomputer.
5. the on-off circuit of no standby power according to claim 1 is characterized in that, also comprises the indicating circuit by LED, and described LED indicating circuit links to each other with the MCU control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220413063 CN202837893U (en) | 2012-08-20 | 2012-08-20 | Switching circuit without stand-by power consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220413063 CN202837893U (en) | 2012-08-20 | 2012-08-20 | Switching circuit without stand-by power consumption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202837893U true CN202837893U (en) | 2013-03-27 |
Family
ID=47949557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220413063 Expired - Fee Related CN202837893U (en) | 2012-08-20 | 2012-08-20 | Switching circuit without stand-by power consumption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202837893U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998987A (en) * | 2012-08-20 | 2013-03-27 | 昆山万维通建筑系统科技有限公司 | Switching circuit free of standby power consumption |
| CN103412509A (en) * | 2013-08-29 | 2013-11-27 | 灿芯半导体(上海)有限公司 | Low-power-consumption self-cutting-off circuit and level switching circuit thereof |
| CN109884942A (en) * | 2019-03-01 | 2019-06-14 | 广东美的厨房电器制造有限公司 | The control system and electric appliance of electric appliance |
-
2012
- 2012-08-20 CN CN 201220413063 patent/CN202837893U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998987A (en) * | 2012-08-20 | 2013-03-27 | 昆山万维通建筑系统科技有限公司 | Switching circuit free of standby power consumption |
| CN103412509A (en) * | 2013-08-29 | 2013-11-27 | 灿芯半导体(上海)有限公司 | Low-power-consumption self-cutting-off circuit and level switching circuit thereof |
| CN103412509B (en) * | 2013-08-29 | 2016-04-13 | 灿芯半导体(上海)有限公司 | Low-power consumption Self-disconnecting circuit and level shifting circuit thereof |
| CN109884942A (en) * | 2019-03-01 | 2019-06-14 | 广东美的厨房电器制造有限公司 | The control system and electric appliance of electric appliance |
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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: 20130327 Termination date: 20130820 |