CN201956915U - Circuit for reducing standby power consumption of RC (Resistance-Capacitance) reduction voltage power circuit - Google Patents
Circuit for reducing standby power consumption of RC (Resistance-Capacitance) reduction voltage power circuit Download PDFInfo
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- CN201956915U CN201956915U CN2011200693420U CN201120069342U CN201956915U CN 201956915 U CN201956915 U CN 201956915U CN 2011200693420 U CN2011200693420 U CN 2011200693420U CN 201120069342 U CN201120069342 U CN 201120069342U CN 201956915 U CN201956915 U CN 201956915U
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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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Abstract
The utility model discloses a circuit for reducing the standby power consumption of an RC (Resistance-Capacitance) reduction voltage power circuit, which relates to the technical field of the RC reduction voltage power circuit. Two ends of an adjustable resistor (RV1) are respectively connected with a fire wire and a zero wire, one end of the adjustable resistor (RV1) is connected with one end of a resistor (R11), the other end of the resistor (R11) is connected with one ends of a resistor (R12) and a capacitor (C11), the resistor (R12), a resistor (R13) and a resistor (R14) are connected in series, the rear end of the resistor (R14) is connected with the rear end of the capacitor (C11), and the rear end of the capacitor (C11) is respectively connected with one end of a capacitor (C12), one end of a resistor (R15), a cathode of a diode (D2) and an anode of a diode (D1). Through the shunting effect of the capacitors, the standby power consumption can be reduced with 80%, the problem of the standby power consumption of the RC reduction voltage power circuit is effectively solved, the standby power consumption of the circuit is lower than 0.5W, and the requirement of a new energy star is realized.
Description
Technical field
The utility model relates to the resistance-capacitance depressurization technical field, is specifically related to a kind of power circuit that reduces resistance-capacitance depressurization power circuit stand-by power consumption.
Background technology
The conventional method that electric main is converted to low-voltage direct is to adopt after the transformer step-down rectifying and wave-filtering again, and when being subjected to the restriction of factors such as volume and cost, the most simple and practical method adopts the capacitor step-down power supply exactly.
The basic circuit of the simple and easy power supply of capacitor step-down such as Fig. 1, C1 are decompression capacitor, and D2 is the halfwave rectifier diode, and D1 provides discharge loop to C1 when the negative half period of civil power, and D3 is a voltage stabilizing didoe, and R1 is the charge discharging resisting resistance of C1 behind the power cutoff.Circuit shown in the Fig. 2 that when practical application, usually adopts.When need when load provides bigger electric current, adopting bridge rectifier shown in Figure 3.
During circuit design, measure the exact value of load current earlier, reference example is selected the capacity of decompression capacitor then.Because to the electric current I o that load provides, be actually the charging and discharging currents Ic that flows through C1 by decompression capacitor C1.The C1 capacity is big more, and Xc is more little in capacitive reactance, and the charge and discharge electric current of the C1 that then flows through is big more.As load current Io during less than the charging and discharging currents of C1, unnecessary electric current will flow through voltage-stabiliser tube.In the time of will causing circuit load to be zero load like this, electric current just almost all flows through voltage-stabiliser tube, thereby forms bigger idling consumption, as C1=1UF, I=60MA, V=12V, P=0.72W〉0.5W do not reach new Energy Star requirement.
The utility model content
The purpose of this utility model provides a kind of power circuit that reduces resistance-capacitance depressurization power circuit stand-by power consumption, it is by the shunting action of electric capacity, can make stand-by power consumption reduce by 80%, effectively solved resistance-capacitance depressurization power circuit stand-by power consumption problem, make the circuit stand-by power consumption less than 0.5W, reach new Energy Star requirement.
In order to solve the existing problem of background technology, the utility model is by the following technical solutions: it comprises adjustable resistor RV1, resistance R 11-R15, capacitor C 11-C15, pressurizer U, diode D1-D4, adjustable resistor RV1 two ends are connected with zero line with live wire respectively, and adjustable resistor RV1 one end is connected with resistance R 11 1 ends, resistance R 11 other ends are connected with capacitor C 11 1 ends with resistance R 12 respectively, resistance R 12, R13, R14 series connection, and the rear end of resistance R 14 is connected with capacitor C 11 rear ends; Capacitor C 11 rear ends are connected with capacitor C 12 1 ends, resistance R 15 1 ends, diode D2 negative pole, diode D1 positive pole respectively, diode D1 negative pole is connected with 3 pin of diode D3 negative pole, capacitor C 13 positive poles, capacitor C 16 1 ends, 12V power supply, pressurizer U respectively, 1 pin of pressurizer U is connected with 5V power supply, capacitor C 14 positive poles, capacitor C 15 1 ends respectively, capacitor C 12 other ends are connected with adjustable resistor RV1 lower end, resistance R 15 other ends respectively, and resistance R 15 other ends are connected with diode D3 positive pole, diode D4 negative pole respectively; The negative pole of the other end of the positive pole of diode D2 positive pole, diode D4, the negative pole of capacitor C 13, capacitor C 16,2 pin of pressurizer U, capacitor C 14, the other end of capacitor C 15 interconnect back ground connection.
Described capacitor C 12 is nonpolarity electrochemical capacitor.
The utility model has adopted a nonpolarity electrochemical capacitor C12 with decompression capacitor C11 dividing potential drop, and play the effect of when unloaded standby, shunting simultaneously, because circuit total current position 60MA, load current is at 5-10mA when unloaded, the electric current of other 50MA flows through nonpolarity electrochemical capacitor C12, desirable capacitor is a consumed power not, only does reactive power, so just can effectively reduce resistance-capacitance depressurization power circuit stand-by power consumption than being easier to.
The utility model is by the shunting action of electric capacity, can make stand-by power consumption reduce by 80%, effectively solved resistance-capacitance depressurization power circuit stand-by power consumption problem, makes the circuit stand-by power consumption less than 0.5W, reaches the requirement of the standard of new Energy Star.
Description of drawings
Fig. 1-Fig. 3 is the structural representation of background technology,
Fig. 4 is a structural representation of the present utility model.
Embodiment
With reference to Fig. 4, this embodiment is by the following technical solutions: it comprises adjustable resistor RV1, resistance R 11-R15, capacitor C 11-C15, pressurizer U, diode D1-D4, adjustable resistor RV1 two ends are connected with zero line with live wire respectively, and adjustable resistor RV1 one end is connected with resistance R 11 1 ends, resistance R 11 other ends are connected with capacitor C 11 1 ends with resistance R 12 respectively, resistance R 12, R13, R14 series connection, and the rear end of resistance R 14 is connected with capacitor C 11 rear ends; Capacitor C 11 rear ends are connected with capacitor C 12 1 ends, resistance R 15 1 ends, diode D2 negative pole, diode D1 positive pole respectively, diode D1 negative pole is connected with 3 pin of diode D3 negative pole, capacitor C 13 positive poles, capacitor C 16 1 ends, 12V power supply, pressurizer U respectively, 1 pin of pressurizer U is connected with 5V power supply, capacitor C 14 positive poles, capacitor C 15 1 ends respectively, capacitor C 12 other ends are connected with adjustable resistor RV1 lower end, resistance R 15 other ends respectively, and resistance R 15 other ends are connected with diode D3 positive pole, diode D4 negative pole respectively; The negative pole of the other end of the positive pole of diode D2 positive pole, diode D4, the negative pole of capacitor C 13, capacitor C 16,2 pin of pressurizer U, capacitor C 14, the other end of capacitor C 15 interconnect back ground connection.
Described capacitor C 12 is nonpolarity electrochemical capacitor.
This embodiment has adopted a nonpolarity electrochemical capacitor C12 with decompression capacitor C11 dividing potential drop, and play the effect of when unloaded standby, shunting simultaneously, because circuit total current position 60MA, load current is at 5-10mA when unloaded, the electric current of other 50MA flows through nonpolarity electrochemical capacitor C12, desirable capacitor is a consumed power not, only does reactive power, so just can effectively reduce resistance-capacitance depressurization power circuit stand-by power consumption than being easier to.
Claims (4)
1. circuit that reduces resistance-capacitance depressurization power circuit stand-by power consumption, it is characterized in that it comprises adjustable resistor (RV1), resistance (R11)-(R15), electric capacity (C11)-(C15), pressurizer (U), diode (D1)-(D4), adjustable resistor (RV1) two ends are connected with zero line with live wire respectively, and adjustable resistor (RV1) end is connected with resistance (R11) end, resistance (R11) other end is connected with electric capacity (C11) end with resistance (R12) respectively, resistance (R12), (R13), (R14) series connection, and the rear end of resistance (R14) is connected with electric capacity (C11) rear end.
2. a kind of circuit that reduces resistance-capacitance depressurization power circuit stand-by power consumption according to claim 1, it is characterized in that electric capacity (C11) rear end respectively with electric capacity (C12) end, resistance (R15) end, diode (D2) negative pole, diode (D1) is anodal to be connected, diode (D1) negative pole respectively with diode (D3) negative pole, electric capacity (C13) positive pole, electric capacity (C16) end, the 12V power supply, 3 pin of pressurizer (U) connect, 1 pin of pressurizer (U) respectively with the 5V power supply, electric capacity (C14) positive pole, electric capacity (C15) end connects, electric capacity (C12) other end respectively with adjustable resistor (RV1) lower end, resistance (R15) other end connects, and resistance (R15) other end respectively with diode (D3) positive pole, diode (D4) negative pole connects.
3. a kind of circuit that reduces resistance-capacitance depressurization power circuit stand-by power consumption according to claim 1 is characterized in that the positive pole of diode (D2) positive pole, diode (D4), the negative pole of electric capacity (C13), the other end of electric capacity (C16), 2 pin of pressurizer (U), the negative pole of electric capacity (C14), the other end of electric capacity (C15) interconnect back ground connection.
4. a kind of circuit that reduces resistance-capacitance depressurization power circuit stand-by power consumption according to claim 1 is characterized in that described electric capacity (C12) is nonpolarity electrochemical capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200693420U CN201956915U (en) | 2011-03-16 | 2011-03-16 | Circuit for reducing standby power consumption of RC (Resistance-Capacitance) reduction voltage power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200693420U CN201956915U (en) | 2011-03-16 | 2011-03-16 | Circuit for reducing standby power consumption of RC (Resistance-Capacitance) reduction voltage power circuit |
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| Publication Number | Publication Date |
|---|---|
| CN201956915U true CN201956915U (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200693420U Expired - Fee Related CN201956915U (en) | 2011-03-16 | 2011-03-16 | Circuit for reducing standby power consumption of RC (Resistance-Capacitance) reduction voltage power circuit |
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| CN (1) | CN201956915U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219889A (en) * | 2013-03-22 | 2013-07-24 | 华立仪表集团股份有限公司 | Multichannel output type isolation power supply for electric power acquisition equipment, discrete component type isolated form power circuit and electric power acquisition equipment |
| CN104393753A (en) * | 2014-11-26 | 2015-03-04 | 广西大学 | Multi-output voltage power circuit |
| CN107148737A (en) * | 2014-12-22 | 2017-09-08 | 三菱电机株式会社 | Power conversion device and power semiconductor module |
| CN108039828A (en) * | 2017-12-27 | 2018-05-15 | 浙江恒业电子有限公司 | Capacitance-resistance full-wave rectifying circuit |
| CN112421969A (en) * | 2020-06-22 | 2021-02-26 | 杭州炬华科技股份有限公司 | Enhanced resistance-capacitance power circuit |
-
2011
- 2011-03-16 CN CN2011200693420U patent/CN201956915U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219889A (en) * | 2013-03-22 | 2013-07-24 | 华立仪表集团股份有限公司 | Multichannel output type isolation power supply for electric power acquisition equipment, discrete component type isolated form power circuit and electric power acquisition equipment |
| CN104393753A (en) * | 2014-11-26 | 2015-03-04 | 广西大学 | Multi-output voltage power circuit |
| CN107148737A (en) * | 2014-12-22 | 2017-09-08 | 三菱电机株式会社 | Power conversion device and power semiconductor module |
| CN108039828A (en) * | 2017-12-27 | 2018-05-15 | 浙江恒业电子有限公司 | Capacitance-resistance full-wave rectifying circuit |
| CN112421969A (en) * | 2020-06-22 | 2021-02-26 | 杭州炬华科技股份有限公司 | Enhanced resistance-capacitance power circuit |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20190316 |