CN201766516U - Single power supply voltage-reducing standby circuit - Google Patents
Single power supply voltage-reducing standby circuit Download PDFInfo
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- CN201766516U CN201766516U CN2010202621282U CN201020262128U CN201766516U CN 201766516 U CN201766516 U CN 201766516U CN 2010202621282 U CN2010202621282 U CN 2010202621282U CN 201020262128 U CN201020262128 U CN 201020262128U CN 201766516 U CN201766516 U CN 201766516U
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- power supply
- standby
- supply circuits
- circuit
- voltage
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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
Abstract
The utility model discloses a novel power supply standby circuit. The power supply is in the working and standby modes through the control signal, other auxiliary power supplies are not needed, and the standby mode is different from the traditional power supply standby mode. The output voltage of the power supply consists of a standby power supply voltage and a main power supply voltage. When the power supply receives a standby signal, the main power supply voltage is shut off, the power consumption is reduced, the standby power supply voltage remains unchanged and continually provides the working voltage for the standby control circuit; the main power supply voltage is not really shut off, the output voltage is reduced proportionally to realize standby, the standby power consumption is lower when the proportion of reducing voltage is higher, the response of the power supply is fast and reliable through the standby technology, the standby power consumption is low, the cost is low, and the transplant and popularization are easy.
Description
Technical field
The utility model relates to the machine technology for the treatment of in all high frequency switch power fields, particularly domestic consumer high frequency switch power that electronic product is used.
Background technology
Along with the mankind's living standard improves constantly, each electric appliances and equipment, special household electrical appliance are universal day by day at each common people's family.The electronic technology of high speed development is constantly brought comfortablely and simultaneously easily for our life, has also brought huge energy waste, the world energy sources growing tension.In the world wide of haveing suffered, all there is strict restriction the international market to the energy consumption index of all kinds of electric equipments.The electronic product of efficient energy-saving green environment protection is the trend of development.The electronic product that develops efficient energy-saving green environment protection treats that the utilization of machine technology is also with increasingly extensive.How to reduce cost, reduce stand-by power consumption, work and standby response fast, reliability is high, the machine technology for the treatment of that is easy to transplant and popularize is our urgent problem.
The machine technology for the treatment of in the past is that main power source and accessory power supply (standby power) constitute the realization idle function.During work, main power source and accessory power supply (standby power) are all worked simultaneously.During standby, main power source quits work, and accessory power supply (standby power) works on.And our single supply is treated machine technology: be under the situation that does not increase accessory power supply (standby power), by increase standby power supply circuits and readiness control circuit on single supply, realize the true standby of single supply.
Address the above problem following certain methods at present: a kind ofly be exactly the switching that in the circuit of every group of output electronic switch of serial connection or relay carry out standby and work, this kind mode causes the cost straight line to rise to the equipment of multichannel output and big electric current small voltage and the conversion efficiency that can reduce power supply causes the waste of the energy at last.Second kind is exactly that more traditional machine technology for the treatment of increases a small-power accessory power supply, turn-offs main power source when providing the operating voltage standby by accessory power supply for readiness control circuit and realizes standby, and the complicated reliability of the high circuit of this kind mode cost reduces.
Summary of the invention
Goal of the invention of the present utility model is: at the problem of above-mentioned existence, provide a kind of simple, high reliability, with low cost, be easy to the machine technology for the treatment of transplanting and popularize.
In order to finish above-mentioned purpose the invention is to be achieved by following proposal: the single supply buck treats that machine technology comprises circuit such as current rectifying and wave filtering circuit, main converter, switching circuit control circuit, Vcc power supply circuits, benchmark amplifying circuit, main power supply circuits, reference sampling, also comprise the standby power supply circuits, readiness control circuit.Wherein the standby power supply circuits are connected with readiness control circuit, voltage sample circuit and main power supply circuits.
Readiness control circuit receives the STB signal and carries out the Opportunity awaiting control for linear power supply when operate as normal, main power supply circuits divide two-way by diode by the standby power supply circuits, one road direction reference voltage sample circuit provides sampling voltage, and another road direction standby partial circuit provides operating voltage.Main power supply circuits keep normal power supply.When readiness control circuit when receiving the STB standby command, the voltage that readiness control circuit will exceed on the standby winding of several times of original standby supply power voltages or tens times is communicated on the reference voltage sample circuit by the standby power supply circuits, voltage sample circuit keeps identical standby supply power voltage output by the adjustment of switching power source control circuit.Change has taken place with reference to winding in this moment, at identical voltage but the sampling winding the number of turn increased several times or tens times, the voltage on therefore main power supply road is also done the decline of corresponding proportion, is approximately the voltage that zero volt has been equivalent to turn-off main power supply, has realized the purpose of standby.When the STB standby command quit work readiness control circuit, main power supply circuits began power supply again.
In sum, owing to adopted technique scheme, the beneficial effects of the utility model are:
This single supply buck treats that machine technology is by changing the magnitude of voltage of reference voltage, its other each road circuit that remove the standby supply power voltage are descended in proportion, not needing other accessory power supply independence self conversion and control.The magnitude of voltage of master's voltage supplied is not the volt of zero on the complete meaning during standby, can not work and reaches the purpose of Opportunity awaiting control for linear but drop to load circuit.Simply, high reliability, with low cost, be easy to the machine technology for the treatment of transplanting and popularize.
Description of drawings
Fig. 1 is a functional-block diagram of the present invention;
Fig. 2 is this readiness control circuit connection diagram; Wherein: 1 is that standby power supply circuits, 2 are STB Opportunity awaiting control for linear signal;
Fig. 3 is this standby power supply circuits connection diagrams; 8 be main power supply, 7 for standby power supply circuits, 6 be that the filtering prime, 5 of main power supply circuits is the reference voltage sample circuit for readiness control circuit, 3 for photoelectrical coupler, 4;
Embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalence or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
See also shown in Figure 1: single supply buck of the present invention is treated machine technology, comprise circuit such as current rectifying and wave filtering circuit, main converter, switching circuit control circuit, Vcc power supply circuits, benchmark amplifying circuit, main power supply circuits, reference sampling, also comprise the standby power supply circuits, readiness control circuit.Wherein the standby power supply circuits are connected with readiness control circuit, voltage sample circuit and main power supply circuits, and readiness control circuit receives the STB signal and carries out Opportunity awaiting control for linear.
Power supply is when operate as normal, and main power supply circuits divide two-way by diode by the standby power supply circuits, and a road direction reference voltage sample circuit provides sampling voltage, and another road direction standby partial circuit provides operating voltage.Main power supply circuits keep normal power supply.When readiness control circuit when receiving the STB standby command, the voltage that readiness control circuit will exceed on the standby winding of several times of original standby supply power voltages or tens times is communicated on the reference voltage sample circuit by the standby power supply circuits, voltage sample circuit keeps identical standby supply power voltage output by the adjustment of switching power source control circuit.Change has taken place with reference to winding in this moment, identical voltage but the number of turn of sampling winding has increased several times or tens times, and the voltage on therefore main power supply road is also done the decline of corresponding proportion, is approximately the voltage that zero volt has been equivalent to turn-off main power supply, has realized the purpose of standby.When the STB standby command quit work readiness control circuit, main power supply circuits began power supply again.
As shown in Figure 2, readiness control circuit comprise two triodes wherein a triode be that PNP triode another is NPN triode and an Opportunity awaiting control for linear winding and a diode.The emitter of the described PNP of this example is connected with the standby power supply circuits, and base stage connects the collector electrode of PNP, and the base stage of NPN triode is connected with the STB signal.Control STB signal is by the purpose that reaches power supply standby and work that turns on and off of NPN triode control PNP triode.When the base stage STB of NPN triode signal is high level, the base stage low level of NPN triode conducting PNP triode, the conducting of PNP triode.The Opportunity awaiting control for linear winding is connected to the standby power supply circuits through the filtered voltage of diode rectification.The NPN triode is by the base stage high level of PNP triode when the base stage STB of NPN triode signal is low level, and the PNP triode ends.The Opportunity awaiting control for linear winding is disconnected through filtered voltage of diode rectification and standby power supply circuits.
As shown in Figure 3, described standby power supply circuits divide 5 the tunnel, two diodes of leading up to are linked readiness control circuit, the diode of leading up to is received main power supply circuits, one the tunnel is directly connected to voltage sample circuit, and the resistance of leading up to is connected to photoelectricity coupling and by the power filtering prime of road circuit of a diode master.When the voltage of Opportunity awaiting control for linear winding when the conducting of PNP triode is imported, the Opportunity awaiting control for linear winding voltage provides voltage through diode and resistance for the photoelectricity coupling circuit through one the tunnel, another road is connected to voltage sample circuit by diode, sample circuit is by the photoelectricity coupling circuit, switching power source control circuit, main converter carries out the voltage adjustment makes original Opportunity awaiting control for linear winding voltage drop to the standby supply power voltage, for standby power supply road output provides voltage, meanwhile main power supply circuits and Opportunity awaiting control for linear winding are same main converters, main supply power voltage will with the decline of Opportunity awaiting control for linear winding voltage same ratio, as long as will dropping to, the suitable main supply power voltage of ratio is approximately zero, promptly turn-off main supply power voltage, reached the purpose of standby.
When ending, the PNP triode do not have the voltage input of Opportunity awaiting control for linear winding, this moment, main power supply circuits were kept outside the normal output, another road is connected to voltage sample circuit by diode, sample circuit carries out the voltage adjustment by photoelectricity coupling circuit, switching power source control circuit, main converter, and to make the voltage of main power supply winding be the standby supply power voltage, for standby power supply road output provides voltage, keep normal operating state.
Described readiness control circuit comprises two triodes, wherein a triode is PNP triode Q1, another is NPN triode Q2, the collector electrode of described PNP triode Q1 is connected with aforementioned standby power supply circuits, the base stage of described PNP triode Q1 is by the emitter of the described PNP triode Q1 of resistance R 1 connection, and the base stage of this PNP triode Q1 connects the collector electrode of NPN triode Q2 by resistance R 2; The grounded emitter of NPN triode Q2 also is connected to the negative pole of capacitor C 3, the positive pole of capacitor C 3 is connected with described standby power supply circuits, the base stage of described NPN triode Q2 is connected with aforementioned STB standby signal by resistance R 4, resistance R 3 and capacitor C 2 backs in parallel one end ground connection, the other end is connected with the base stage of aforementioned NPN triode Q2.
Simultaneously, described standby power supply circuits are connected with the negative electrode of diode D10, diode D20 respectively with reference to sample circuit with described, and these standby power supply circuits connect the positive pole of capacitor C 10, these capacitor C 10 minus earths; Described main power supply circuits are connected to the anode of described diode D10, described readiness control circuit is connected to the anode of aforementioned diodes D20 and the anode of diode D30 simultaneously, described photoelectrical coupler connects an end of resistance R 10, the other end of this resistance R 10 is connected to the negative electrode of aforementioned diodes D30 and the negative electrode of diode D40 simultaneously, and the anode of aforementioned diodes D40 is connected with the filtering prime of aforementioned main power supply circuits.The voltage output value of described standby power supply circuits is identical during with not standby when aforementioned single supply standby.
Preferred example described above only is that the present invention is set forth and illustrates, but is not limited to disclosed concrete any form, and it is possible carrying out many modifications and variations.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (3)
1. single supply buck stand-by circuit, comprise current rectifying and wave filtering circuit, main converter, switching circuit control circuit, Vcc power supply circuits, benchmark amplifying circuit, photoelectrical coupler, main power supply circuits, with reference to sample circuit, it is characterized in that: also comprise standby power supply circuits and readiness control circuit.
2. single supply buck stand-by circuit according to claim 1, it is characterized in that: described readiness control circuit comprises two triodes, wherein a triode is PNP triode (Q1), another is NPN triode (Q2), the collector electrode of described PNP triode (Q1) is connected with standby power supply circuits (1), the base stage of described PNP triode (Q1) connects resistance (R1) end, this resistance (R1) other end connects the emitter of described PNP triode (Q1), the base stage of this PNP triode (Q1) connects resistance (R2) end simultaneously, and this resistance (R2) other end connects the collector electrode of NPN triode (Q2); The grounded emitter of NPN triode (Q2) also is connected to the negative pole of electric capacity (C3), the positive pole of electric capacity (C3) is connected with described standby power supply circuits (1), the base stage of described NPN triode (Q2) connects resistance (R4) end, this resistance (R4) other end is connected with aforementioned STB standby signal, resistance (R3) and electric capacity (C2) back in parallel one end ground connection, the other end is connected with the base stage of aforementioned NPN triode (Q2).
3. single supply buck stand-by circuit according to claim 1, it is characterized in that: described standby power supply circuits (7) are connected with the negative electrode of diode (D10) with diode (D20) with reference to sample circuit (3) simultaneously with described, and these standby power supply circuits (7) connect the positive pole of electric capacity (C10), this electric capacity (C10) minus earth; Described main power supply circuits (8) are connected to the anode of described diode (D10), described readiness control circuit (4) is connected to the anode of aforementioned diodes (D20) and the anode of diode (D30) simultaneously, described photoelectrical coupler (5) connects an end of resistance (R10), the other end of this resistance (R10) is connected to the negative electrode of aforementioned diodes (D30) and the negative electrode of diode (D40) simultaneously, and the anode of aforementioned diodes (D40) is connected with the filtering prime (6) of main power supply circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202621282U CN201766516U (en) | 2010-07-19 | 2010-07-19 | Single power supply voltage-reducing standby circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202621282U CN201766516U (en) | 2010-07-19 | 2010-07-19 | Single power supply voltage-reducing standby circuit |
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| Publication Number | Publication Date |
|---|---|
| CN201766516U true CN201766516U (en) | 2011-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202621282U Expired - Fee Related CN201766516U (en) | 2010-07-19 | 2010-07-19 | Single power supply voltage-reducing standby circuit |
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| CN (1) | CN201766516U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035411A (en) * | 2010-07-19 | 2011-04-27 | 四川九州电子科技股份有限公司 | Single power supply buck standby circuit |
| CN103425056A (en) * | 2012-05-15 | 2013-12-04 | 珠海格力电器股份有限公司 | Quasi-zero power consumption standby control circuit device and control method |
-
2010
- 2010-07-19 CN CN2010202621282U patent/CN201766516U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035411A (en) * | 2010-07-19 | 2011-04-27 | 四川九州电子科技股份有限公司 | Single power supply buck standby circuit |
| CN102035411B (en) * | 2010-07-19 | 2012-12-05 | 四川九州电子科技股份有限公司 | Single power supply buck standby circuit |
| CN103425056A (en) * | 2012-05-15 | 2013-12-04 | 珠海格力电器股份有限公司 | Quasi-zero power consumption standby control circuit device and control method |
| CN103425056B (en) * | 2012-05-15 | 2016-05-04 | 珠海格力电器股份有限公司 | Quasi-zero power consumption standby control circuit device and control method |
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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: 20110316 Termination date: 20130719 |