CN206341144U - Low standby power circuit - Google Patents
Low standby power circuit Download PDFInfo
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- CN206341144U CN206341144U CN201621376449.9U CN201621376449U CN206341144U CN 206341144 U CN206341144 U CN 206341144U CN 201621376449 U CN201621376449 U CN 201621376449U CN 206341144 U CN206341144 U CN 206341144U
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- circuit
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- microprocessor
- electric capacity
- 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
Abstract
The utility model is related to low standby power circuit, and the utility model solves the problem of household appliances stand-by power consumption is high, proposes a kind of low standby power circuit, and its technical scheme is：Including switch transformer, primary side absorbing circuit, power supply chip controls circuit and main output feedback circuit, it is characterized in that, also include auxiliary output circuit, microprocessor, microprocessor controlling switch circuit and low differential voltage linear voltage stabilizer circuit, the switch transformer primary side connects primary side absorbing circuit and power supply chip control circuit respectively, secondary side connects main output feedback circuit and auxiliary output circuit respectively, microprocessor controlling switch circuit connects main output feedback circuit, low differential voltage linear voltage stabilizer circuit connects auxiliary output circuit, microprocessor connects microprocessor controlling switch circuit and low differential voltage linear voltage stabilizer circuit respectively.The beneficial effects of the utility model are, simple in construction, easily realize, practicality is very strong, and standby effect is clearly, it is adaptable to household appliances.
Description
Technical field
The utility model is related to energy-saving electric power technology, more particularly to low standby power circuit engineering.
Background technology
Power supply is each electronic equipment, the indispensable important component of household appliances, however Switching Power Supply again because its
Efficiency high, small volume, low cost, and be widely used.
At present, each one problem of household appliances generally existing, standby power is very high, many even up to number more than W.Because
Substantial amounts of household appliances are in holding state for a long time, cause the huge waste of the energy.Current most of use Switching Power Supplies
Household appliances due to technical reason, in the standby state, because not completely cutting through other electricity beyond power supply of microprocessor
Source, makes many circuits still in power consumption state, causes standby power still very high.With the release of the new energy consumption standard of country,
Stand-by power consumption it is also proposed and clearly require, in the future to the stand-by power consumption requirement of white (black) the color household appliances such as refrigerator, air-conditioning
Also will be increasingly harsher.In response to national energy-saving, environmental protection policy, the standby power of reduction household appliances will become as one
Gesture, higher energy consumption standard will also be released.
Utility model content
The purpose of this utility model is to solve the problem of current household appliances stand-by power consumption is high, it is proposed that one kind is low to treat electromechanics
Source circuit.
The utility model solves its technical problem, and the technical scheme of use is：Low standby power circuit, including switch transformation
Device, primary side absorbing circuit, power supply chip control circuit and main output feedback circuit, it is characterised in that also including auxiliary output circuit,
Microprocessor, microprocessor controlling switch circuit and low differential voltage linear voltage stabilizer circuit, the switch transformer primary side difference
Primary side absorbing circuit and power supply chip control circuit are connected, secondary side connects main output feedback circuit and auxiliary output circuit respectively,
Microprocessor controlling switch circuit connects main output feedback circuit, and low differential voltage linear voltage stabilizer circuit connects auxiliary output circuit, micro-
Processor connects microprocessor controlling switch circuit and low differential voltage linear voltage stabilizer circuit respectively.
The switch transformer is flyback transformer, wherein, it is the primary side port five of transformer, secondary end port six, secondary
Level end port one and secondary end port two are Same Name of Ends.
The transformer is model STR-A6059H transformer.
The auxiliary output circuit includes diode four, electric capacity eight and ground wire, and the anode connecting valve of the diode four becomes
Depressor secondary end port two, negative electrode connection low differential voltage linear voltage stabilizer circuit, the positive terminal of electric capacity eight connects the moon of diode four
Pole, negative pole end connection ground wire.
The microprocessor controlling switch circuit includes electric capacity six, resistance 11, triode two, triode three and ground wire,
The emitter stage of the triode two connects main output feedback circuit, and base stage connects one end of resistance 11, resistance 11 it is another
Hold the colelctor electrode of connecting triode three, the emitter stage connection ground wire of triode three, base stage connection microprocessor, the positive pole of electric capacity six
Hold the colelctor electrode of connecting triode two, negative pole end connection ground wire.
The triode two is PNP triode, and triode three is NPN triode.
The low differential voltage linear voltage stabilizer circuit includes three terminal regulator, electric capacity ten, electric capacity 11 and ground wire, three end
The output pin connection microprocessor of voltage-stablizer, grounding pin connection ground wire, the positive terminal connection three terminal regulator of electric capacity ten
Output pin, negative pole end connection ground wire, one end of electric capacity 11 connects the output pin of three terminal regulator, other end connection ground
Line.
The beneficial effects of the utility model are, by above-mentioned low standby power circuit, to make standby effect clearly, and
Circuit structure is simple, easily realizes, practicality is very strong, it is to avoid the problem of household appliances stand-by power consumption is high.
Brief description of the drawings
Fig. 1 is embodiment circuit structure diagram.
Fig. 2 is circuit theory diagrams of the present utility model.
Wherein, 1 be switch transformer secondary end port one, 2 be switch transformer secondary end port two, 3 for switch become
Depressor secondary end port three, 4 be switch transformer primary side port four, and 5 be switch transformer primary side port five, and 6 be switch
Primary end port six, 7 be switch transformer primary side port seven, and C1 is electric capacity one, and C2 is electric capacity two, and C3 is electric capacity,
C4 is electric capacity four, and C5 is electric capacity five, and C6 is electric capacity six, and C7 is electric capacity seven, and C8 is electric capacity eight, and C9 is electric capacity nine, and C10 is electric capacity
Ten, C11 are electric capacity 11, and CY1 is Y capacitance, and R1 is resistance one, and R2 is resistance two, and R3 is resistance three, and R4 is resistance four, and R5 is
Resistance five, R6 is resistance six, and R8 is resistance eight, and R10 is resistance ten, and R11 is resistance 11, and D1 is diode one, and D2 is two poles
Pipe two, D3 is diode three, and D4 is diode four, and V2 is PNP triode two, and V3 is NPN triode three, and U1 is accurate voltage stabilizing collection
Into circuit, U2 is power supply chip, and N1A is the light emitting diode of photoelectrical coupler, and N1B is the phototriode of photoelectrical coupler,
U3 is three terminal regulator, and IN is three terminal regulator U3 input pin, and OUT is the output pin of three terminal regulator, and GND is three
Hold the grounding pin of voltage-stablizer.
Embodiment
Below in conjunction with the accompanying drawings and embodiment, the technical solution of the utility model is described in detail.
Low standby power electric routing switch transformer described in the utility model, primary side absorbing circuit, power supply chip control electricity
Road, main output feedback circuit, auxiliary output circuit, microprocessor, microprocessor controlling switch circuit and low pressure difference linear voltage regulator
Circuit is constituted, wherein, switch transformer primary side connects primary side absorbing circuit and power supply chip control circuit, secondary side point respectively
Main output feedback circuit and auxiliary output circuit are not connected, and microprocessor controlling switch circuit connects main output feedback circuit, low pressure
Difference linear constant voltage regulator circuit connects auxiliary output circuit, and microprocessor connects microprocessor controlling switch circuit and low voltage difference line respectively
Property voltage regulator circuit, its circuit theory diagrams is referring to Fig. 2.Here, it can be switched on or off by a microprocessor control signals negative
Heavier power supply output is carried, when system is judged as normal operating conditions, microprocessor control signals make heavily loaded out-put supply
Connect；When system is judged as holding state, microprocessor control signals cut off heavily loaded out-put supply；Either normal work
Make or holding state, powered individually winding all the way is drawn from switch transformer to systematic microprocessor, and it is normal all the time defeated
Go out.
Embodiment
The low standby power circuit of the utility model embodiment includes switch transformer, primary side absorbing circuit, power supply chip control
The main output feedback circuit of circuit processed, 12V, the auxiliary output circuits of 7.5V, microprocessor, microprocessor controlling switch circuit and low voltage difference
Linear regulator circuit, wherein, switch transformer primary side connects primary side absorbing circuit and power supply chip control circuit, two respectively
Secondary side connects main output feedback circuit and auxiliary output circuit, the main output feedback electricity of microprocessor controlling switch circuit connection respectively
Road, low differential voltage linear voltage stabilizer circuit connects auxiliary output circuit, microprocessor connect respectively microprocessor controlling switch circuit and
Low differential voltage linear voltage stabilizer circuit, its circuit structure diagram is referring to Fig. 1.
In foregoing circuit, transformer is model STR-A6059H transformer, wherein, the primary side port five of transformer
5th, secondary end port 66, secondary end port 1 and secondary end port 22 are Same Name of Ends；Auxiliary output circuit includes diode four
D4, the C8 of electric capacity eight and ground wire, wherein, the D4 of diode four anode connecting valve transformer secondary output end port 22, negative electrode connection is low
Pressure difference linear regulator circuit, the C8 of electric capacity eight positive terminal connection diode four D4 negative electrode, negative pole end connection ground wire；Microprocessor
Device controlling switch circuit includes the C6 of electric capacity six, the R11 of resistance 11, the V2 of triode two, the V3 of triode three and ground wire, wherein, three poles
The V2 of pipe two emitter stage connects main output feedback circuit, and base stage connects the R11 of resistance 11 one end, and the R11's of resistance 11 is another
Hold the V3 of connecting triode three colelctor electrode, the V3 of triode three emitter stage connection ground wire, base stage connection microprocessor, the C6 of electric capacity six
The V2 of positive terminal connecting triode two colelctor electrode, negative pole end connection ground wire；The V2 of triode two is PNP triode, triode three
V3 is NPN triode；Low differential voltage linear voltage stabilizer circuit includes three terminal regulator U3, the C10 of electric capacity ten, the C11 of electric capacity 11 and ground
Line, wherein, three terminal regulator U3 output pin OUT connection microprocessors, grounding pin GND connection ground wires, the C10's of electric capacity ten
Positive terminal connection three terminal regulator U3 output pin OUT, negative pole end connection ground wire, the C11 of electric capacity 11 one end connects three ends
Voltage-stablizer U3 output pin OUT, other end connection ground wire.
When embodiment circuit works, switch transformer controls the effect of circuit by power supply chip, by high-tension side direct current
Electricity is converted into the direct current of low-voltage；Primary side absorbing circuit absorbs the peak voltage in the primary side winding course of work, to reduce EMI
Interference；Energy rectifying and wave-filtering after transformer transformation is exported 12V direct currents by main output feedback circuit, normal work need to
It is outer that larger load current is provided, in order to export stabilization, it regard 12V outputs as feedback reference；Auxiliary output circuit becomes transformer
Energy rectifying and wave-filtering after pressure, exports 7.5V direct currents, and export defeated to low differential voltage linear voltage stabilizer circuit progress secondary pressure
Go out 5V to power to systematic microprocessor；Microprocessor controlling switch circuit can control it to turn on and off by systematic microprocessor
The passage that main output 12V outwards powers.
When the systems are operating normally, main output feedback circuit output 12V voltages, the circuit to some heavier loads is powered,
Auxiliary output circuit exports 7.5V voltages, and 7.5V, which export, to be exported 5V by low differential voltage linear voltage stabilizer circuit and give microprocessor portion confession
Electricity；When system is in holding state, can by microprocessor control cut-out, 12V is main exports the passage powered to heavy duty, bear
The circuit part power consumption of load-carrying is reduced to 0, and the 7.5V output voltages of auxiliary output circuit pass through low differential voltage linear voltage stabilizer circuit in addition
5V voltages are exported still to microprocessor power supply.Because the power consumption of microprocessor portion is relatively low, the circuit power of load weight is cut off,
Whole system only has microprocessor also in stand-by operation state, and system standby power will be substantially reduced.Through actual measurement, in standby mould
Under formula, in the case of total input 0.1W, the 5V voltages exported by low differential voltage linear voltage stabilizer circuit can the load with 10mA；Electricity
Power attenuation when source is definitely unloaded only has 30mW.
Claims (7)
1. low standby power circuit, including switch transformer, primary side absorbing circuit, power supply chip control circuit and main output feedback
Circuit, it is characterised in that also steady including auxiliary output circuit, microprocessor, microprocessor controlling switch circuit and low pressure difference linearity
Transformer circuits, the switch transformer primary side connects primary side absorbing circuit and power supply chip control circuit, secondary side point respectively
Main output feedback circuit and auxiliary output circuit are not connected, and microprocessor controlling switch circuit connects main output feedback circuit, low pressure
Difference linear constant voltage regulator circuit connects auxiliary output circuit, and microprocessor connects microprocessor controlling switch circuit and low voltage difference line respectively
Property voltage regulator circuit.
2. low standby power circuit according to claim 1, it is characterised in that the switch transformer is flyback transformation
Device, wherein, primary side port five, secondary end port six, secondary end port one and the secondary end port two of transformer are Same Name of Ends.
3. low standby power circuit according to claim 2, it is characterised in that the switch transformer is model STR-
A6059H transformer.
4. low standby power circuit according to claim 1, it is characterised in that the auxiliary output circuit includes diode
4th, electric capacity eight and ground wire, the anode connecting valve transformer secondary output end port two of the diode four, negative electrode connection low voltage difference line
Property voltage regulator circuit, the positive terminal of electric capacity eight connects the negative electrode of diode four, negative pole end connection ground wire.
5. low standby power circuit according to claim 1, it is characterised in that the microprocessor controlling switch circuit bag
Include electric capacity six, resistance 11, triode two, triode three and ground wire, the main output feedback electricity of emitter stage connection of the triode
Road, base stage connects one end of resistance 11, the colelctor electrode of the other end connecting triode three of resistance 11, the transmitting of triode three
Pole connects ground wire, base stage connection microprocessor, the colelctor electrode of the positive terminal connecting triode two of electric capacity six, negative pole end connection ground
Line.
6. low standby power circuit according to claim 5, it is characterised in that the triode two is PNP triode, three
Pole pipe three is NPN triode.
7. low standby power circuit according to claim 1, it is characterised in that the low differential voltage linear voltage stabilizer circuit bag
Include three terminal regulator, electric capacity ten, electric capacity 11 and ground wire, the output pin connection microprocessor of the three terminal regulator, ground connection
Pin connects ground wire, and the positive terminal of electric capacity ten connects the output pin of three terminal regulator, and negative pole end connects ground wire, electric capacity 11
One end connects the output end of three terminal regulator, other end connection ground wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621376449.9U CN206341144U (en) | 2016-12-15 | 2016-12-15 | Low standby power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621376449.9U CN206341144U (en) | 2016-12-15 | 2016-12-15 | Low standby power circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206341144U true CN206341144U (en) | 2017-07-18 |
Family
ID=59301921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621376449.9U Active CN206341144U (en) | 2016-12-15 | 2016-12-15 | Low standby power circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206341144U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108170192A (en) * | 2017-12-28 | 2018-06-15 | 上海传英信息技术有限公司 | A kind of low pressure difference linear voltage regulator, control method and intelligent terminal |
| CN111342652A (en) * | 2020-03-02 | 2020-06-26 | 启攀微电子（上海）有限公司 | Charge pump circuit structure with low standby power consumption |
-
2016
- 2016-12-15 CN CN201621376449.9U patent/CN206341144U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108170192A (en) * | 2017-12-28 | 2018-06-15 | 上海传英信息技术有限公司 | A kind of low pressure difference linear voltage regulator, control method and intelligent terminal |
| CN111342652A (en) * | 2020-03-02 | 2020-06-26 | 启攀微电子（上海）有限公司 | Charge pump circuit structure with low standby power consumption |
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