CN109995222A - A kind of power circuit of impermanence available electricity - Google Patents
- ️Tue Jul 09 2019
CN109995222A - A kind of power circuit of impermanence available electricity - Google Patents
A kind of power circuit of impermanence available electricity Download PDFInfo
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Publication number
- CN109995222A CN109995222A CN201910198542.7A CN201910198542A CN109995222A CN 109995222 A CN109995222 A CN 109995222A CN 201910198542 A CN201910198542 A CN 201910198542A CN 109995222 A CN109995222 A CN 109995222A Authority
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- power
- switch
- power supply
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- 2019-03-15 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000005611 electricity Effects 0.000 title claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- 230000008878 coupling Effects 0.000 claims abstract description 17
- 238000010168 coupling process Methods 0.000 claims abstract description 17
- 238000005859 coupling reaction Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 12
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 239000003381 stabilizer Substances 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 6
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from DC input or output
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
- H02M1/0054—Transistor switching losses
- H02M1/0058—Transistor switching losses by employing soft switching techniques, i.e. commutation of transistors when applied voltage is zero or when current flow is zero
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention discloses a kind of power circuit of variable available electricity, main process task channel and supply power soft switch control circuit including equipment power supply；The main process task channel of equipment power supply includes input power filtering, power switch and power conversion processing module；Power switch is as equipment power switch component；Power conversion processing module is then the in-line power processing component of equipment；Supply power soft switch control circuit includes coupling unit, microswitch unit, instant power supply unit, power supply switch unit, actuation of keys generation unit and switch state generation unit.The present invention advantageously reduces equipment power dissipation, related circuit only has a little power consumption under device power-on working condition, does not generate power consumption then under the powered-down state of equipment, therefore advantageously reduce the power consumption of equipment, especially suitable for the equipment to sensitive power consumption, such as battery power supply class equipment.Under powered-down state, control circuit is in electroless state, is conducive to the service life for improving control circuit, and then improve the reliability of equipment.
Description
Technical field
The present invention relates to a kind of power circuits of variable available electricity.
Background technique
Conventional power switches are located in supply access, and equipment operating current all flows through power switch.When equipment work electricity When flowing larger, it is often necessary to can the biggish power switch of galvanization, and can the biggish power switch of galvanization its volume also will more Greatly.When equipment shape smaller (such as in portable device), the application of bulky power switch is frequently subjected to limit.
In the portable devices such as hand-held, backpack, since overall volume is smaller, supply power soft switch is often used to substitute Conventional power switch.In existing implementation, supply power soft switch requires one group of standing power supply, provides for interlock circuit Power supply needed for work.Its circuit operation principle block diagram is illustrated in fig. 1 shown below.
In Fig. 1, power supply needed for standing power supply provides work for control processing circuit, input derives from equipment power supply Or battery will carry out pressure stabilizing in standing power supply when power supply or cell voltage are not able to satisfy the work requirements of control processing circuit Design guarantees output within the scope of the voltage adaptation of control processing circuit.Processing circuit is controlled generally by logic chip or monolithic Machine composition, realizes the logical process function of input signal.Power switch is made of the transistor of low on-resistance or relay etc., It is controlled by control processing circuit.
The control flow of common supply power soft switch is as follows: microswitch forms control input signal, through controlling processing circuit After processing, output control logic level, the control logic level after driving for controlling power switch, control power input with Power source loads are connected or disconnect.
Maximum feature in this scheme is that control processing circuit needs standing power supply.As long as power input or battery exist, Then standing power supply and control processing circuit are in full-time state, will cause power supply or battery long-term disposal energy loss shape State.In battery power supply class equipment, which can reduce the cruising ability of equipment, not be low-power consumption optimization design scheme.
Summary of the invention
The technical problem to be solved by the present invention is not needing standing confession in, limited space equipment sensitive to power supply power consumption Electricity realizes the switch control to equipment high-current supply using a fine motion key.By using variable available electricity singly-bound power supply Soft switch circuit is reducing the equipment loss of power, while simplifying supply power soft switch circuit complexity, is improving the reliable of equipment Property.
The purpose of the present invention is achieved through the following technical solutions:
A kind of power circuit of impermanence available electricity, including the main process task channel of equipment power supply and supply power soft switch control electricity Road；
The main process task channel of equipment power supply includes input power filtering, power switch and power conversion processing module；
Input power filtering is main to realize insulator functionality, plays bidirectional filtering effect, has both prevented external power supply interference pair Equipment internal electric source and circuit impact, and are also prevented from various interfere inside equipment and scurry into external common power supply by power circuit On signal, meet the requirement to equipment Electro Magnetic Compatibility related to power supply；
Power switch is realized to input under the control of switch control signal cg for telecommunications as equipment power switch component Number be opened or closed；
Power conversion processing module is then the in-line power processing component of equipment, the primary power cource that output equipment needs, such as+ 5V ,+3.3V etc.；
Supply power soft switch control circuit includes coupling unit, microswitch unit, instant power supply unit, power supply switching list Member, actuation of keys generation unit and switch state generation unit；
For coupling unit by carrying out decaying isolation processing to the power supply input signal V_inf after being filtered, output is full The low pressure low current signal V_k that sufficient subsequent conditioning circuit needs is used for subsequent interlock circuit unit；When microswitch is in release shape When state, coupling unit does not consume electric energy；
Microswitch is the switch operating element of equipment power supply, has and presses connection, and release disconnects two states；
Instant power supply unit provides temporary power for entire control circuit；After microswitch is pressed in closed state, The power supply V_k of coupling is switched to instant power supply unit, it is straight that instant power supply unit quickly generates and output control circuit needs Galvanic electricity source Vc；After discharging microswitch and being in an off state, the output of instant power supply unit will close pair after setting time Outer power supply；In the setting time, it is ensured that equipment power conversion processing module can complete conversion process, normally supply to equipment Electricity；
Power supply switch unit realizes power supply out-put supply Vc certain power supply all the way into the output of power conversion processing module immediately The seamless switching of V_s0 provides stable power supply for switch state generation unit, so that switch control signal can be effectively controlled in it State, keep power switch stablize it is controlled；
Actuation of keys generation unit generates a pulse signal ps under the triggering of instant power supply unit out-put supply Vc, with The pressing and release movement of reaction microswitch in time；
Switch state generation unit is using Vcc as working power, under the triggering of pulse ps, generates and exports switch control letter Number cg, controls the movement of power switch: being switched on or switched off switch, realization opens or closes function to what equipment was powered.
It is preferred that microswitch K need to stablize one timing of pressing for the stability for preventing from malfunctioning and keeping control Between after, which can just export corresponding pulse signal；Microswitch K discharges after a certain period of time, and pulse signal disappears.
It is preferred that the primary power cource that output equipment needs includes+5V and/or+3.3V.
It is preferred that power switch is MOS switch；Supply power soft switch control circuit includes resistance R1, R2 and R3, micro- Dynamic switch K, capacitor C1, voltage-stabiliser tube V1, diode V2 and V3, counter D1；
Resistance R1 is separately connected power filter output and microswitch K, microswitch K are separately connected voltage-stabiliser tube V1 and resistance R2, voltage-stabiliser tube V1 plus earth；Capacitor C1 and resistance R3 constitutes parallel circuit, which connects resistance R2 and counting The end cp of device D1, parallel circuit other end ground connection；
The cathode of diode V2 and V3 are connected to together and are connected to the end Vcc of counter D1, and the anode of diode V2 connects surely The cathode of pressure pipe V1, the anode of diode V3 connect power conversion processing module, and counter Q0 terminates MOS switch.
Resistance R1 is as power supply coupling unit or power supply coupling unit, and after pressing microswitch K, voltage-stabiliser tube V1 is to supply immediately Electric unit forms temporary power immediately；
Temporary power is powered through V2 to switch state generation unit D1 again, and the end Q0 of D1 exports 0 level, is made at MOS switch In closed state；
V2 and V3 forms power supply switch unit, and when equipment power conversion processing module normal power supply, the power supply of D1 is immediately Switch to+5V；
R2, C1 and R3 form pulse former or actuation of keys generation unit, and temporary power signal is after the circuit The rise saltus step of short formation 0 to 1 is inputted in the cp of D1, edge triggering D1, makes the end the Q0 output signal Vc of D1 by 0 level in the jump Jump is 1 level, and control metal-oxide-semiconductor is in the conductive state, connects equipment power supply, works normally power conversion processing module, real Existing power on function；
Discharge microswitch K after a certain period of time, temporary power disappears, then through certain time, the end the cp pulse signal of D1 is by 1 The end the Q0 output for becoming 0, D1 keeps 1 level constant, and equipment power supply is made to be continually maintained in unlatching working condition；
Microswitch K is pressed again, and the end cp of D1 will generate again jumps pulse on one, make the end the Q0 output signal Vc of D1 By 1 jump to 0, control MOS switch is in close state, and realizes the powered-down operation to equipment.
Under the powered-down state of equipment, the power consumption of circuit is 0；Under device power-on working condition, circuit power consumption is mainly on D1, electricity Road operating current is in milliampere rank.
It is preferred that V1 is changed to ac rectifier, the anode of V2 is connected to rectification circuit output, realizes to friendship The switch control in galvanic electricity source.By the adjustment to instant power supply unit circuit, which can also be used for alternating-current switch control.
The beneficial effects of the present invention are:
(1) it is not necessarily to standing power supply in control circuit, advantageously reduces equipment power dissipation.As long as power input is not in custom circuit It disconnects, the standing power supply in conventional soft switch circuit is at working condition, and correspondingly, control circuit is also at power-up work State.Standing power supply and control circuit under work can all introduce certain power consumption, increase the power consumption of equipment.It is of the invention variable Stand-by power source, related circuit only have a little power consumption under device power-on working condition, do not generate power consumption then under the powered-down state of equipment, because This advantageously reduces the power consumption of equipment, especially suitable for the equipment to sensitive power consumption, such as battery power supply class equipment.
(2) under powered-down state, control circuit is in electroless state, is conducive to the service life for improving control circuit, and then improve The reliability of equipment.As long as input power does not turn off, standing power supply and control circuit in conventional soft switch circuit are all in adding Electric working condition greatly increases the working time of the partial circuit, increases the failure risk of the partial circuit.The present invention In soft switch control circuit working time and equipment task time it is almost the same, equipment it is powered-down i.e. be in off working state.Phase Than conventional soft switch circuit, the power-up working time is shortened, electric stress action time is reduced, is conducive to improve the partial circuit Reliability, and then improve the reliability of equipment.
Detailed description of the invention
Fig. 1 is currently to commonly use Sofe Switch working principle diagram；
Fig. 2 is supply power soft switch control circuit composition of the present invention；
Fig. 3 is example of the present invention, DC power supply soft switch circuit schematic diagram.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawing, but protection scope of the present invention is not limited to It is as described below.
As shown in Fig. 2, a kind of power circuit of impermanence available electricity, open including the main process task channel of equipment power supply and power supply are soft Close control circuit；
The main process task channel of equipment power supply includes input power filter module, power switch and power conversion processing mould Block；
Input power filter module mainly realizes insulator functionality, plays bidirectional filtering effect, has both prevented external power supply dry It disturbs and equipment internal electric source and circuit is impacted, be also prevented from various interfere inside equipment and external common is scurried by power circuit On power supply signal, meet the requirement to equipment Electro Magnetic Compatibility related to power supply；
Power switch is realized to input under the control of switch control signal cg for telecommunications as equipment power switch component Number be opened or closed；
Power conversion processing module is then the in-line power processing component of equipment, the primary power cource that output equipment needs, such as+ 5V ,+3.3V etc.；
Supply power soft switch control circuit includes coupling unit, microswitch unit, instant power supply unit, power supply switching list Member, actuation of keys generation unit and switch state generation unit；
For coupling unit by carrying out decaying isolation processing to the power supply input signal V_inf after being filtered, output is full The low pressure low current signal V_k that sufficient subsequent conditioning circuit needs is used for subsequent interlock circuit unit；When microswitch is in release shape When state, coupling unit does not consume electric energy；
Microswitch is the switch operating element of equipment power supply, has and presses connection, and release disconnects two states；
Instant power supply unit provides temporary power for entire control circuit；After microswitch is pressed in closed state, The power supply V_k of coupling is switched to instant power supply unit, it is straight that instant power supply unit quickly generates and output control circuit needs Galvanic electricity source Vc；After discharging microswitch and being in an off state, the output of instant power supply unit will close pair after setting time Outer power supply；In the setting time, it is ensured that equipment power conversion processing module can complete conversion process, normally supply to equipment Electricity；
Power supply switch unit realizes power supply out-put supply Vc certain power supply all the way into the output of power conversion processing module immediately The seamless switching of V_s0 provides stable power supply for switch state generation unit, so that switch control signal can be effectively controlled in it State, keep power switch stablize it is controlled；
Actuation of keys generation unit generates a pulse signal ps under the triggering of instant power supply unit out-put supply Vc, with The pressing and release movement of reaction microswitch in time；To prevent from malfunctioning and keeping the stability of control, microswitch needs steady After a certain period of time, which can just export corresponding pulse signal for fixed pressing.Microswitch discharges after a certain period of time, pulse signal It disappears.
Switch state generation unit is using Vcc as working power, under the triggering of pulse ps, generates and exports switch control letter Number cg, controls the movement of power switch: being switched on or switched off switch, realization opens or closes function to what equipment was powered.
It in a preferred embodiment, is the stability for preventing from malfunctioning and keeping control, microswitch K need to stablize pressing After a certain period of time, which can just export corresponding pulse signal；Microswitch K discharges after a certain period of time, and pulse signal disappears.
In a preferred embodiment, the primary power cource that output equipment needs includes+5V and/or+3.3V.
In a preferred embodiment, as shown in figure 3, carrying out switch control to DC power supply, structure is as follows: power switch For MOS switch；Supply power soft switch control circuit includes resistance R1, R2 and R3, microswitch K, capacitor C1, voltage-stabiliser tube V1, two poles Pipe V2 and V3, counter D1；
Resistance R1 is separately connected power filter output and microswitch K, microswitch K are separately connected voltage-stabiliser tube V1 and resistance R2, voltage-stabiliser tube V1 plus earth；Capacitor C1 and resistance R3 constitutes parallel circuit, which connects resistance R2 and counting The end cp of device D1, parallel circuit other end ground connection；
The cathode of diode V2 and V3 are connected to together and are connected to the end Vcc of counter D1, and the anode of diode V2 connects surely The cathode of pressure pipe V1, the anode of diode V3 connect power conversion processing module, and counter Q0 terminates MOS switch.
Resistance R1 is as power supply coupling unit or power supply coupling unit, and after pressing microswitch K, voltage-stabiliser tube V1 is to supply immediately Electric unit forms temporary power immediately；
Temporary power is powered through V2 to switch state generation unit D1 again, and the end Q0 of D1 exports 0 level, is made at MOS switch In closed state；
V2 and V3 forms power supply switch unit, and when equipment power conversion processing module normal power supply, the power supply of D1 is immediately Switch to+5V；
R2, C1 and R3 form pulse former or actuation of keys generation unit, and temporary power signal is after the circuit The rise saltus step of short formation 0 to 1 is inputted in the cp of D1, edge triggering D1, makes the end the Q0 output signal Vc of D1 by 0 level in the jump Jump is 1 level, and control metal-oxide-semiconductor is in the conductive state, connects equipment power supply, works normally power conversion processing module, real Existing power on function；
Discharge microswitch K after a certain period of time, temporary power disappears, then through certain time, the end the cp pulse signal of D1 is by 1 The end the Q0 output for becoming 0, D1 keeps 1 level constant, and equipment power supply is made to be continually maintained in unlatching working condition；
Microswitch K is pressed again, and the end cp of D1 will generate again jumps pulse on one, make the end the Q0 output signal Vc of D1 By 1 jump to 0, control MOS switch is in close state, and realizes the powered-down operation to equipment.
Under the powered-down state of equipment, the power consumption of circuit is 0；Under device power-on working condition, circuit power consumption is mainly on D1, electricity Road operating current is in milliampere rank.
In a preferred embodiment, by the adjustment to instant power supply unit circuit, which can also be used for exchange and opens Close control.Switch control is carried out to AC power source, the V1 of DC power control circuit is changed to ac rectifier, the anode of V2 It is connected to rectification circuit output, realizes the switch control to AC power source.The V1 in Fig. 3 is changed to ac rectifier, The anode of V2 is connected to rectification circuit output, and the switch control to AC power source can be realized.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, it is noted that all Made any modifications, equivalent replacements, and improvements etc. within the spirit and principles in the present invention should be included in guarantor of the invention Within the scope of shield.
Claims (5)
1. a kind of power circuit of impermanence available electricity, it is characterised in that: open including the main process task channel of equipment power supply and power supply are soft Close control circuit；
The main process task channel of equipment power supply includes input power filtering, power switch and power conversion processing module；
Input power filtering is main to realize insulator functionality, plays bidirectional filtering effect；
Power switch is realized under the control of switch control signal cg as equipment power switch component to input power supply signal It is opened or closed；
Power conversion processing module is then the in-line power processing component of equipment, the primary power cource that output equipment needs；
Supply power soft switch control circuit include coupling unit, microswitch unit, instant power supply unit, power supply switch unit, by Key acts generation unit and switch state generation unit；
Coupling unit is by carrying out decaying isolation processing to the power supply input signal V_inf after being filtered, after output meets The low pressure low current signal V_k that continuous circuit needs, uses for subsequent interlock circuit unit；When microswitch is in release conditions When, coupling unit does not consume electric energy；
Microswitch is the switch operating element of equipment power supply, has and presses connection, and release disconnects two states；
Instant power supply unit provides temporary power for entire control circuit；After microswitch is pressed in closed state, coupling The power supply V_k of conjunction is switched to instant power supply unit, the direct current that instant power supply unit quickly generates and output control circuit needs Source Vc；After release microswitch is in an off state, the output of instant power supply unit will close external confession after setting time Electricity；In the setting time, it is ensured that equipment power conversion processing module can complete conversion process, to equipment normal power supply；
Power supply switch unit realizes power supply out-put supply Vc certain power supply V_s0 all the way into the output of power conversion processing module immediately Seamless switching, stable power supply is provided for switch state generation unit, so that its shape that switch control signal can be effectively controlled State keeps power switch to stablize controlled；
Actuation of keys generation unit generates a pulse signal ps, under the triggering of instant power supply unit out-put supply Vc with timely React the pressing and release movement of microswitch；
Switch state generation unit is using Vcc as working power, under the triggering of pulse ps, generates simultaneously output switch control signal Cg controls the movement of power switch: being switched on or switched off switch, realization opens or closes function to what equipment was powered.
2. a kind of power circuit of variable available electricity according to claim 1, it is characterised in that: to prevent from malfunctioning and protect The stability of control is held, microswitch K need to stablize pressing after a certain period of time, which can just export corresponding pulse signal；It is micro- After a certain period of time, pulse signal disappears for dynamic switch K release.
3. a kind of power circuit of variable available electricity according to claim 1, it is characterised in that: the master that output equipment needs It include+5V and/or+3.3V with power supply.
4. a kind of power circuit of variable available electricity according to claim 1, it is characterised in that: power switch is opened for MOS It closes；Supply power soft switch control circuit includes resistance R1, R2 and R3, microswitch K, capacitor C1, voltage-stabiliser tube V1, diode V2 and V3, counter D1；
Resistance R1 is separately connected power filter output and microswitch K, microswitch K are separately connected voltage-stabiliser tube V1 and resistance R2, Voltage-stabiliser tube V1 plus earth；Capacitor C1 and resistance R3 constitutes parallel circuit, which connects resistance R2 and counter The end cp of D1, parallel circuit other end ground connection；
The cathode of diode V2 and V3 are connected to together and are connected to the end Vcc of counter D1, and the anode of diode V2 connects voltage-stabiliser tube The cathode of V1, the anode of diode V3 connect power conversion processing module, and counter Q0 terminates MOS switch.
5. a kind of power circuit of variable available electricity according to claim 4, it is characterised in that: V1 is changed to AC rectification Circuit, the anode of V2 are connected to rectification circuit output, realize the switch control to AC power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910198542.7A CN109995222B (en) | 2019-03-15 | 2019-03-15 | Power supply circuit with abnormal standby power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910198542.7A CN109995222B (en) | 2019-03-15 | 2019-03-15 | Power supply circuit with abnormal standby power supply |
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| Publication Number | Publication Date |
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| CN109995222A true CN109995222A (en) | 2019-07-09 |
| CN109995222B CN109995222B (en) | 2020-12-11 |
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| CN201910198542.7A Active CN109995222B (en) | 2019-03-15 | 2019-03-15 | Power supply circuit with abnormal standby power supply |
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| JP2011125132A (en) * | 2009-12-10 | 2011-06-23 | Yokogawa Electric Corp | Switching power supply |
| US20120014145A1 (en) * | 2010-07-13 | 2012-01-19 | Sanken Electric Co., Ltd. | Startup circuit |
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2019
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|---|---|---|---|---|
| US20060146584A1 (en) * | 2005-01-06 | 2006-07-06 | Sanken Electric Co., Ltd. | DC converter |
| CN101071978A (en) * | 2006-05-09 | 2007-11-14 | 罗姆股份有限公司 | Start-up circuit and start-up method |
| CN101136593A (en) * | 2006-08-28 | 2008-03-05 | 三垦电气株式会社 | Switching power source device |
| JP2008072830A (en) * | 2006-09-14 | 2008-03-27 | Yokogawa Electric Corp | Switching power unit |
| CN101873755A (en) * | 2009-04-24 | 2010-10-27 | 松下电工株式会社 | Discharge lamp ignition device, supply unit and ligthing paraphernalia |
| JP2011125132A (en) * | 2009-12-10 | 2011-06-23 | Yokogawa Electric Corp | Switching power supply |
| US20120014145A1 (en) * | 2010-07-13 | 2012-01-19 | Sanken Electric Co., Ltd. | Startup circuit |
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| CN109995222B (en) | 2020-12-11 |
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