CN102647094B - Low-power consumption dual-path double-power supply energy-saving circuit - Google Patents
Low-power consumption dual-path double-power supply energy-saving circuit Download PDFInfo
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- CN102647094B CN102647094B CN201210141753.5A CN201210141753A CN102647094B CN 102647094 B CN102647094 B CN 102647094B CN 201210141753 A CN201210141753 A CN 201210141753A CN 102647094 B CN102647094 B CN 102647094B
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- power supply
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- triode
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a low-power consumption dual-path double-power supply energy-saving circuit which is characterized by comprising a capacitance reduction voltage power supply circuit and a controllable feedback circuit; the capacitance reduction voltage power supply circuit is provided with two power supply channels; when in a standby state, the controllable feedback circuit controls the current of one control channel to flow back to a power grid and stabilizes the voltage of an output end. The invention has the beneficial effects that the circuit occupies small space and has low cost; when the circuit works, the two power supply channels supply power simultaneously; when in the standby state, a control chip controls one-way controllable silicon to be communicated so as to enable the current of one power supply channel to flow back to the power grid, simultaneously the control chip controls two triodes to be communicated or stopped, so that the output voltage is switched between 12V and 5.4V; and consequently, the stand-power power consumption is effectively reduced, and the lifestyle of energy saving, environmental protection and low carbon of people is adapted.
Description
Technical field
The present invention relates to a kind of energy-saving circuit, relate in particular to a kind of two-way dual power supply energy-saving circuit, belong to small household appliances power circuit technical field.
Background technology
Along with the raising of social industry degree of changing into, energy demand increases rapidly.Energy-conservation, environmental protection, the life style of low-carbon (LC) is praised highly by common people.The new energy consumption instruction of European Union specifies that some small household electrical appliances must be low-power consumption standbies, and this is the technology barriers of small household appliances outlet.In the situation that does not increase too many cost, realizing low-power consumption standby is the pursuit of numerous small appliances.Due to the restriction of cost, solution is not a lot.More feasible mode is double circuit power supply: in the time that relay is worked, two-way power supply is powered simultaneously, meets the need for electricity of relay and control loop.Do not work and when standby, cut off a road power supply at relay, reducing stand-by power consumption.But this control mode has shortcoming: cut off a road power supply and generally use bidirectional triode thyristor, and the trigger current of bidirectional triode thyristor is all larger, the design of circuits for triggering acquires a certain degree of difficulty.Power consumption when standby is low, has but increased the power consumption that triggers bidirectional triode thyristor circuit when work.Another kind of power save mode is the magnetic latching relay that uses special low-power consumption, but the cost of magnetic latching relay is too high.
Summary of the invention
The defect that the present invention seeks to exist for prior art provides the two-way dual power supply energy-saving circuit that can effectively reduce stand-by power consumption.
The present invention for achieving the above object, adopts following technical scheme:
A kind of low-power consumption two-way dual power supply energy-saving circuit, is characterized in that: it comprises capacitor step-down power supply circuits and controlled feedback circuit; Described capacitor step-down power supply circuits have two for electric channels, control wherein a control channel current reflux electrical network and output end of pressure-stabilizing voltage when described controlled feedback circuit standby;
Described capacitor step-down power supply circuits comprise discharge resistance R1, be made up of for electric diode D2, discharge diode D4 for electric diode D1, discharge diode D3 and decompression capacitor C2, half-wave decompression capacitor C1, half-wave respectively two are set up in parallel between 220V alternating voltage the electric channel that supplies for output end of pressure-stabilizing power supply simultaneously, the output end of pressure-stabilizing that voltage-stabiliser tube D5, filter capacitor C3 form;
Described controlled feedback circuit comprises current-limiting resistance R4, voltage stabilizing didoe D6, the first triode Q1, the second triode Q2, the 3rd resistance R 3, the 5th resistance R 5,101 control chips, the 6th resistance R 6, one-way SCR Q3 and relay J; Described 101 control chips are connected to output voltage two ends, for generation of Opportunity awaiting control for linear signal, control the first triode Q1 conducting and cut-off; Described the first triode Q1 base stage is electrically connected with described 101 control chips by the 3rd resistance R 3, and emitter connects AC power N line, and collector electrode is connected to the positive terminal of output voltage via relay J; Described the second triode Q2 base stage is connected to being connected in series of described relay J and described the first triode Q1 collector electrode by the 5th resistance R 5, and emitter connects AC power N line, and collector electrode is connected to the positive terminal of output voltage via voltage stabilizing didoe D6, current-limiting resistance R4; Described one-way SCR Q3 controls the utmost point and is connected to described relay J by the 6th resistance R 6, and negative electrode connects AC power N line, and anode is connected on decompression capacitor C2 and half-wave supplies between electric diode D2;
Between described two power supply circuits and the positive terminal of output voltage, also go here and there current limiting resistance R 2
Beneficial effect of the present invention: this circuit footprint is little, cost is low, when work, power for electric channel for two simultaneously, when standby by the conducting of control chip control one-way SCR by a current reflux electrical network for electric channel wherein, two triode conductings of control chip control simultaneously or cut-off are switched output voltage between 12V and 5.4V, thereby effectively reduce stand-by power consumption, meet the life style of people's energy-conserving and environment-protective, low-carbon (LC).
Brief description of the drawings
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
A low-power consumption two-way dual power supply energy-saving circuit as shown in Figure 1, it comprises capacitor step-down power supply circuits and controlled feedback circuit; Described capacitor step-down power supply circuits have two for electric channels, control wherein a control channel current reflux electrical network and output end of pressure-stabilizing voltage when described controlled feedback circuit standby.
Described capacitor step-down power supply circuits comprise discharge resistance R1, be made up of for electric diode D2, discharge diode D4 for electric diode D1, discharge diode D3 and decompression capacitor C2, half-wave decompression capacitor C1, half-wave respectively two are set up in parallel between 220V alternating voltage the electric channel that supplies for output end of pressure-stabilizing power supply simultaneously, the output end of pressure-stabilizing that voltage-stabiliser tube D5, filter capacitor C3 form.After power failure, discharge resistance R1 bleeds off decompression capacitor C1, and the electric weight at decompression capacitor C2 two ends prevents that high pressure from hurting sb.'s feelings.Voltage-stabiliser tube D5 is the output end of pressure-stabilizing of 12V voltage-stabiliser tube and filter capacitor C3 composition.For control chip 101, relay J provide power supply.
Described controlled feedback circuit comprises current-limiting resistance R4, voltage stabilizing didoe D6, the first triode Q1, the second triode Q2, the 3rd resistance R 3, the 5th resistance R 5,101 control chips, the 6th resistance R 6, one-way SCR Q3 and relay J; Described 101 control chips are connected to output voltage two ends, for generation of Opportunity awaiting control for linear signal, control the first triode Q1 conducting and cut-off; Described the first triode Q1 base stage is electrically connected with described 101 control chips by the 3rd resistance R 3, and emitter connects AC power N line, and collector electrode is connected to the positive terminal of output voltage via relay J; Described the second triode Q2 base stage is connected to being connected in series of described relay J and described the first triode Q1 collector electrode by the 5th resistance R 5, and emitter connects AC power N line, and collector electrode is connected to the positive terminal of output voltage via voltage stabilizing didoe D6, current-limiting resistance R4; Described one-way SCR Q3 controls the utmost point and is connected to described relay J by the 6th resistance R 6, and negative electrode connects AC power N line, and anode is connected on decompression capacitor C2 and half-wave supplies between electric diode D2.101 control chips are controlled shutoff or the conducting of the first triode Q1 by the 3rd resistance R 3.The first triode Q1 conducting: relay J adhesive, the second triode Q2, one-way SCR Q3 turn-off.Now, filter capacitor C3 two ends are stable 12V direct voltage.The first triode Q1 turn-offs: relay J dead electricity and turn-offing, and by microampere order current trigger the second triode Q2 and the one-way SCR Q3 conducting of the 5th resistance R 5, the six resistance R 6.One-way SCR Q3 conducting: the supply current of decompression capacitor C2 is by " bypass ", and this electric current returns to again electrical network, does not consume energy.Simultaneously the second triode Q2 conducting: voltage-stabiliser tube D6 is 5.1V voltage-stabiliser tube, and 12V voltage-stabiliser tube D5 is cut off, now C3 both end voltage is reduced to the 0.3V pipe that 5.4V(voltage-stabiliser tube D6 voltage adds the second triode Q2 and is pressed).This power supply only provides the standby current of control chip 101.Supply voltage drops to 5.4V from 12V, flows through electric current I one timing of half-wave for electric diode D1, and power consumption has dropped to 5.4 × I from 12 × I.So just realize special low-power consumption standby cheaply.The 4th resistance R 4 is the current-limiting resistances in 24 Europe, prevents that large electric current from burning out voltage-stabiliser tube D6.
Between described two power supply circuits and the positive terminal of output voltage, also go here and there current limiting resistance R 2.
Claims (1)
1. a low-power consumption two-way dual power supply energy-saving circuit, is characterized in that: it comprises capacitor step-down power supply circuits and controlled feedback circuit; Described capacitor step-down power supply circuits have two for electric channels, control wherein a control channel current reflux electrical network and output end of pressure-stabilizing voltage when described controlled feedback circuit standby;
Described capacitor step-down power supply circuits comprise discharge resistance R1, be made up of for electric diode D2, discharge diode D4 for electric diode D1, discharge diode D3 and decompression capacitor C2, half-wave decompression capacitor C1, half-wave respectively two are set up in parallel between 220V alternating voltage the electric channel that supplies for output end of pressure-stabilizing power supply simultaneously, the output end of pressure-stabilizing that voltage-stabiliser tube D5, filter capacitor C3 form;
Described controlled feedback circuit comprises current-limiting resistance R4, voltage stabilizing didoe D6, the first triode Q1, the second triode Q2, the 3rd resistance R 3, the 5th resistance R 5,101 control chips, the 6th resistance R 6, one-way SCR Q3 and relay J; Described 101 control chips are connected to output voltage two ends, for generation of Opportunity awaiting control for linear signal, control the first triode Q1 conducting and cut-off; Described the first triode Q1 base stage is electrically connected with described 101 control chips by the 3rd resistance R 3, and emitter connects AC power N line, and collector electrode is connected to the positive terminal of output voltage via relay J; Described the second triode Q2 base stage is connected to being connected in series of described relay J and described the first triode Q1 collector electrode by the 5th resistance R 5, and emitter connects AC power N line, and collector electrode is connected to the positive terminal of output voltage via voltage stabilizing didoe D6, current-limiting resistance R4; Described one-way SCR Q3 controls the utmost point and is connected to described relay J by the 6th resistance R 6, and negative electrode connects AC power N line, and anode is connected on decompression capacitor C2 and half-wave supplies between electric diode D2;
Described two for also going here and there current limiting resistance R 2 between electric channels and the positive terminal of output voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210141753.5A CN102647094B (en) | 2012-05-08 | 2012-05-08 | Low-power consumption dual-path double-power supply energy-saving circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210141753.5A CN102647094B (en) | 2012-05-08 | 2012-05-08 | Low-power consumption dual-path double-power supply energy-saving circuit |
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| Publication Number | Publication Date |
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| CN102647094A CN102647094A (en) | 2012-08-22 |
| CN102647094B true CN102647094B (en) | 2014-06-25 |
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| CN201210141753.5A Expired - Fee Related CN102647094B (en) | 2012-05-08 | 2012-05-08 | Low-power consumption dual-path double-power supply energy-saving circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106060904A (en) * | 2016-04-13 | 2016-10-26 | 卓荣集成电路科技有限公司 | Power supply management system and method for bluetooth chip |
| CN106354239B (en) * | 2016-10-10 | 2019-11-12 | 合肥联宝信息技术有限公司 | A kind of power supply device for video card |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2008155719A1 (en) * | 2007-06-20 | 2008-12-24 | Koninklijke Philips Electronics N.V. | Ac / dc converter which regulates the output voltage and prevents the load from current spikes |
| CN201550034U (en) * | 2009-12-03 | 2010-08-11 | 深圳龙多电子科技有限公司 | Standby low-power-consumption capacitance voltage step-down circuit |
| CN101741269B (en) * | 2009-12-31 | 2012-07-18 | 深圳和而泰智能控制股份有限公司 | Capacitor voltage-dropping power supply circuit and device thereof |
| CN202889213U (en) * | 2012-05-08 | 2013-04-17 | 无锡艾立德智能科技有限公司 | Low-power-consumption double-channel double-power-supply energy-saving circuit |
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Effective date of registration: 20170224 Address after: 214135 Jiangsu province Wuxi City Linghu New District Road No. 200 Wu Chinese Sensor Network International Innovation Park A building four B zone Patentee after: WUXI LEDONG MICROELECTRONICS Co.,Ltd. Address before: 214135 Jiangsu New District of Wuxi City Linghu Road No. 200 Chinese Sensor Network International Innovation Park A district four floor Patentee before: Wuxi Aleader Intelligent Technology Co.,Ltd. |
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