CN102437627B - Charger without standby power consumption - Google Patents
Charger without standby power consumption Download PDFInfo
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- CN102437627B CN102437627B CN201210004574.7A CN201210004574A CN102437627B CN 102437627 B CN102437627 B CN 102437627B CN 201210004574 A CN201210004574 A CN 201210004574A CN 102437627 B CN102437627 B CN 102437627B
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Abstract
The invention discloses a charger without standby power consumption, comprising a rectifying and filtering unit, a power conversion control unit, an output rectifying and filtering unit, a current sampling unit, a signal amplification unit, a central control unit and a switching control unit, wherein the switching control unit comprises an optical coupler, a thyristor and a light touch press key. The work of the charger is realized by pressing the light touch press key and charging conditions of equipment to be charged can be monitored in real time by the central control unit in the process of charging, so that an alternative current power supply can be automatically cut off after the equipment to be charged is completely charged. With the adoption of the charger, the charger does not have the standby power consumption, the electric energy is effectively saved, the service life of the charger is prolonged, and the use safety of the charger is improved; meanwhile, the battery of the equipment to be charged is prevented form being frequently charged for a plurality of times and the service life of the battery is prolonged.
Description
Technical field
The present invention relates to a kind of USB interface charger, particularly a kind of charger of zero stand-by power consumption.
Background technology
The portable product of at present extensive use such as: mobile phone, notebook computer, portable power tool etc. all dispose charger, a lot of people take off charger once being full of electricity from supply socket, wait when remembering and just take off often, will cause following problem like this:
1, waste electric energy, is unfavorable for energy-saving and emission-reduction.
2, power supply does not cut off, and charger inside is charged for a long time, makes electronic equipment for a long time in fatigue, shortens its useful life, even reduces the class of insulation.
3, cause product by frequent charge repeatedly, shorten the useful life of product battery.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of zero stand-by power consumption charger, realization Real-Time Monitoring in charging process is recharged the charge condition of equipment, after making charging device be full of electric energy, automatically cut off charger AC power, effective saves energy, extend the useful life of charger and avoid being recharged device battery by frequent charge repeatedly, extended useful life of battery.
For addressing the above problem, the invention provides a kind of charger of zero stand-by power consumption, comprising:
AC power;
Rectification filtering unit 1 is connected with described AC power, comprise: two resistance R 1A, R1B, two differential mode inductance L1, L2, capacitor C 1, rectifier bridge BG1 and pi type filter, described pi type filter is comprised of two capacitor C in parallel 4, C5 and common mode inductance L3, described capacitor C 1 is in parallel with described resistance R 1A, R1B, and one end of capacitor C 1 connects rectifier bridge BG1, and pi type filter is connected on rectifier bridge BG1;
Power conversion control unit 2 is connected with described rectification filtering unit 1, comprise: resistance R 4, R5, R6, R7, R8A, R8B, R9, R10, R11A, R11B, capacitor C 6, C7, C8, diode D1, D2, D3 and power supply chip IC1, 1 end of described IC1 and three resistance R of connecting 4, R5, R6 connects, diode D2 one end is connected between resistance R 5 and resistance R 6, the other end and resistance R 9, ground connection after R10 series connection, ground connection after resistance R 6 one end are connected with capacitor C 6, ground connection after 2 ends of described IC1 are connected with capacitor C 7, 3 ends of described IC1 are connected to resistance R 9, between R10, and by diode D2 ground connection, two resistance R 11A in parallel, ground connection after R11B is connected with 4 ends of described IC1, 7 ends of described IC1 and 8 end ground connection, after 5 ends of described IC1 and 6 end parallel connections, be connected to one end of diode D1, two parallel resistance R8A, R8B and resistance R 7, capacitor C 8 parallel connections,
Output rectification filter unit 3 is connected by switch transformer T1 with described power conversion control unit 2, described output rectification filter unit 3 comprises: resistance R 12, R13, R14, R15, R16, R17, capacitor C 9, C10, C11, C12, diode D4 and USB interface, three capacitor C 10, C11, C12 is in parallel with resistance R 13, resistance R 12 and capacitor C 9 are connected afterwards and diode D4 is connected in parallel, described diode D4 is connected to capacitor C 10, described USB interface and four resistance (R14, R15, R16, R17) parallel connection, two resistance (R14, R16) series connection after with two resistance (R15, R17) parallel connection,
Current sampling unit 4 is connected with described output rectification filter unit 3, comprises four resistance R in parallel 18, R19, R20, R21;
Signal amplification unit 5 is connected by resistance R 22 with described current sampling unit 4, comprise two-stage calculation amplifier IC2A, IC2B, resistance R 23, R24, R25, R26 and capacitor C 13, C14, C15, C18, resistance R 23, R25 and capacitor C 13, C18 be ground connection respectively, resistance R 24 with after capacitor C 14 parallel connections, be connected with 2 ends of described operational amplifier IC2A, resistance R 26 with after capacitor C 15 parallel connections, be connected with 6 ends of described operational amplifier IC2B, 1 end of operational amplifier IC2A is connected with 5 ends of operational amplifier IC2B;
Central control unit 6 is connected with described signal amplification unit 5, comprises high speed microprocessor IC3, capacitor C 17, resistance R 28 and LED, and described resistance R 28 is connected to high speed microprocessor IC3 after connecting with LED, capacitor C 17 ground connection;
Described central control unit 6 is connected by switch control unit 7 with rectification filtering unit 1, described switch control unit 7 comprises optical coupler IC4, controllable silicon Q1, touch key SW, resistance R 2, R3, R29 and capacitor C 2, C3,1 pin of described optical coupler IC4 is connected with resistance R 29, and 2 pin are connected with central control unit 6; 1 pin of described touch key SW is connected with 4 pin of optical coupler IC4 and resistance R 3, and 2 pin of touch key SW are connected with the G utmost point and the capacitor C 3 of 6 pin of optical coupler IC4, controllable silicon Q1; The T2 utmost point of described controllable silicon Q1 is connected with resistance R 2, resistance R 3 and differential mode inductance L1, and the T1 utmost point is with 2 pin of capacitor C 2,1 pin of capacitor C 3 and rectifier bridge BG13 pin are connected, and resistance R 2 and capacitor C 2 are connected.
In technique scheme, the work of charger realizes by pressing touch key, central control unit realization Real-Time Monitoring in charging process is recharged the charge condition of equipment, after making charging device be full of electric energy, automatically cut off charger AC power, make charger zero stand-by power consumption, effectively saves energy, extend the useful life of charger and improved the fail safe that charger is used, avoid being recharged simultaneously device battery by frequent charge repeatedly, extended useful life of battery.
Further improvement for technique scheme, central control unit 6 of the present invention also comprises floating charge school checkpoint K switch 1, cuts out checkpoint K switch 2, resistance 27 and capacitor C 16, and resistance 27 is connected to the RESET end of closing checkpoint K switch 2 and high speed microprocessor IC3.Adopt this technical scheme can conveniently realize setting and the verification of floating current and close current.
For the further improvement of technique scheme, the resistance R 18 of current sampling of the present invention unit 4, R19, R20, R21 are the resistance of high accuracy, low resistance.Guarantee when being recharged equipment charge, charging current is the same with the electric current flowing through on current sampling unit, produces a weak voltage signals being directly proportional to electric current and be transferred to signal amplification unit 5 on current sampling unit.
For the further improvement of technique scheme, operational amplifier IC2A of the present invention, IC2B are high-gain, the operational amplifier of low noise.Adopt this operational amplifier can be so that weak voltage signals is amplified to through signal amplification circuit the magnitude of voltage that central control unit can be identified.
For the further improvement of technique scheme, high speed microprocessor IC3 of the present invention is highly integrated, to have mould/number conversion microprocessor.Adopt this microprocessor to guarantee the voltage analog signal after signal amplification unit amplification to be converted to digital signal, and carry out real-time analytical calculation, according to analysis result, send corresponding control command to the verification that arranges of switch control unit 7 and floating current and close current.
For the further improvement of technique scheme, central control unit monitoring charging current of the present invention and charging interval.Adopt this technical scheme can guarantee that charger can adapt to most charge prepd in the market.
Accompanying drawing explanation
Accompanying drawing 1 is the circuit theory diagrams of the charger of zero stand-by power consumption.
Wherein, resistance: R1A, R1B, R2, R3, R4, R5, R6, R7, R8A, R8B, R9, R10, R11A, R11B, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27, R28;
Electric capacity (nonpolarity): C1, C2, C3, C7, C8, C9, C12, C13, C14, C15, C16, C17;
Electric capacity (having polarity): C4, C5, C6, C10, C11;
Diode: D1, D2, D3, D4;
Differential mode inductance: L1, L2;
Common mode inductance: L3;
Switch transformer: T1;
Rectifier bridge: BG1
Power supply chip: IC1;
Operational amplifier: IC2A, IC2B;
High speed microprocessor: IC3;
Optical coupler: IC4;
Controllable silicon: Q1;
Touch key: SW;
Switch: K1, K2;
Light-emitting diode: LED.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
From accompanying drawing 1, the present invention includes:
AC power;
Rectification filtering unit 1 is connected with described AC power, comprise: two resistance R 1A, R1B, two differential mode inductance L1, L2, capacitor C 1, rectifier bridge BG1 and pi type filter, described pi type filter is comprised of two capacitor C in parallel 4, C5 and induction coil L3, and described capacitor C 1 is in parallel with described resistance R 1A, R1B, one end of capacitor C 1 connects rectifier bridge BG1, and pi type filter is connected on rectifier bridge BG1;
Power conversion control unit 2 is connected with described rectification filtering unit 1, comprise: resistance R 4, R5, R6, R7, R8A, R8B, R9, R10, R11A, R11B, capacitor C 6, C7, C8, diode D1, D2, D3 and power supply chip IC1, 1 end of described IC1 and three resistance R of connecting 4, R5, R6 connects, diode D2 one end is connected between resistance R 5 and resistance R 6, the other end and resistance R 9, ground connection after R10 series connection, ground connection after resistance R 6 one end are connected with capacitor C 6, ground connection after 2 ends of described IC1 are connected with capacitor C 7, 3 ends of described IC1 are connected to resistance R 9, between R10, and by diode D2 ground connection, two resistance R 11A in parallel, ground connection after R11B is connected with 4 ends of described IC1, 7 ends of described IC1 and 8 end ground connection, after 5 ends of described IC1 and 6 end parallel connections, be connected to one end of diode D1, two parallel resistance R8A, R8B and resistance R 7, capacitor C 8 parallel connections,
Output rectification filter unit 3 is connected by switch transformer T1 with described power conversion control unit 2, described output rectification filter unit 3 comprises: resistance R 12, R13, R14, R15, R16, R17, capacitor C 9, C10, C11, C12, diode D4 and USB interface, three capacitor C 10, C11, C12 is in parallel with resistance R 13, resistance R 12 and capacitor C 9 are connected afterwards and diode D4 is connected in parallel, described diode D4 is connected to capacitor C 10, described USB interface and four resistance (R14, R15, R16, R17) parallel connection, two resistance (R14, R16) series connection after with two resistance (R15, R17) parallel connection,
Current sampling unit 4 is connected with described output rectification filter unit 3, comprises four resistance R in parallel 18, R19, R20, R21;
Signal amplification unit 5 is connected by resistance R 22 with described current sampling unit 4, comprise two-stage calculation amplifier IC2A, IC2B, resistance R 23, R24, R25, R26 and capacitor C 13, C14, C15, C18, resistance R 23, R25 and capacitor C 13, C18 be ground connection respectively, resistance R 24 with after capacitor C 14 parallel connections, be connected with 2 ends of described operational amplifier IC2A, resistance R 26 with after capacitor C 15 parallel connections, be connected with 6 ends of described operational amplifier IC2B, 1 end of operational amplifier IC2A is connected with 5 ends of operational amplifier IC2B;
Central control unit 6 is connected with described signal amplification unit 5, comprises high speed microprocessor IC3, capacitor C 17, resistance R 28 and LED, and described resistance R 28 is connected to high speed microprocessor IC3 after connecting with LED, capacitor C 17 ground connection;
Described central control unit 6 is connected by switch control unit 7 with rectification filtering unit 1, described switch control unit 7 comprises optical coupler IC4, controllable silicon Q1, touch key SW, resistance R 2, R3, R29 and capacitor C 2, C3,1 pin of described optical coupler IC4 is connected with resistance R 29, and 2 pin are connected with central control unit 6; 1 pin of described touch key SW is connected with 4 pin of optical coupler IC4 and resistance R 3, and 2 pin of touch key SW are connected with the G utmost point and the capacitor C 3 of 6 pin of optical coupler IC4, controllable silicon Q1; The T2 utmost point of described controllable silicon Q1 is connected with resistance R 2, resistance R 3 and differential mode inductance L1, and the T1 utmost point is with 2 pin of capacitor C 2,1 pin of capacitor C 3 and rectifier bridge BG13 pin are connected, and resistance R 2 and capacitor C 2 are connected.Central control unit 6 also comprises floating charge school checkpoint K switch 1, cuts out checkpoint K switch 2, resistance 27 and capacitor C 16, and resistance 27 is connected to the RESET end of closing checkpoint K switch 2 and high speed microprocessor IC3.
The present embodiment is with close current 40mA, and floating current 100mA is example, realizes setting and the verification of floating current and close current, specific as follows:
1, close current setting: in USB socket, connect a tunable load, adjust load current and make it as 40mA, K2 is closed to checkpoint short circuit 2S, LED flicker, setting completes.
2, floating current setting: in USB socket, connect a tunable load, adjust load current and make it as 100mA, by K1 floating charge checkpoint short circuit 2S, LED flicker, setting completes.
The present embodiment is with close current 40mA, and floating current 100mA is the charging control mode combining in example explanation monitoring charging current and charging interval, specific as follows:
1, at first 10 minutes of the charging stage, if central control unit 6 monitors charging current < 40mA, with regard to the instruction of sending powered-down, switch control unit 7 cut off AC power at once, and charger quits work; If monitor charging current >=40mA, send the instruction of power-on, switch control unit 7 continues to maintain AC power conducting, and charger works on.
2, after charging 10 minutes, if CPU 6 monitors charging current > 100mA, the instruction of sending power-on, switch control unit 7 cuts off AC power, and charger quits work; If CPU continuous monitoring in 30S is arrived charging current between 40-100mA, CPU proceeds to the countdown of closing that the floating charge stage starts 10 minutes, after countdown in 10 minutes finishes, central control unit 6 sends powered-down instruction, switch control unit 7 cuts off AC power, and charger quits work.
3, no matter after still the charging 10 minutes for first 10 minutes of charging and close the countdown stage in charging, as long as charging current < 40mA (close current of setting namely), just send immediately powered-down instruction, switch control unit 7 cuts off AC power, and charger quits work.
When implementing this device; rectification filtering unit 1 is level and smooth, pure direct current by electrical network 50/60Hz AC rectification; electromagnetic noise and noise signal are suppressed simultaneously; the interference of minimizing to power conversion control unit 2 and electrical network; also there is in addition overcurrent protection and current-limiting function, guarantee the safety that product is used.Power conversion control unit 2 becomes high-frequency alternating current by the direct current after rectification, and by switch transformer T1, voltage drop is transported to output rectification filter unit 3 to design load.Output rectification filter unit 3 is level and smooth, pure direct current by high-frequency ac electric rectification.Current sampling unit 4 is connected 5 with output rectification filter unit 3 with signal amplification unit, and monitoring charging current is also converted to corresponding with it voltage signal by current signal.The weak voltage signals that signal amplification unit 5 is sent current sampling unit 4 here is amplified to the magnitude of voltage that central control unit 6 can read.Voltage analog signal after central control unit 6 amplifies signal amplification unit 5 is converted to digital signal, and carry out real-time analytical calculation, according to analysis result, send corresponding control command to the verification that arranges of switch control unit 7 and floating current and close current.Thereby the control command that switch control unit 7 sends according to central control unit 6 is opened or is closed controllable silicon Q1 and controls the work of charger or close and by manually making controllable silicon Q1 conducting that charger is worked by touch key SW.USB interface connects charging equipment, the long touch key SW 1S that presses, AC power is added to the G utmost point of controllable silicon Q1 by touch key SW, controllable silicon Q1 conducting, product obtains electric starting working, central control unit 6 sends power-on instruction, LED lights, the command signal of power-on is added to the G utmost point of controllable silicon Q1 by optical coupler IC4, (this whole process required time is extremely short to make controllable silicon Q1 can maintain conducting, before staff unclamps touch key SW, this process completes, the power-on instruction that controllable silicon Q1 is sent by central control unit 6 is controlled and is maintained conducting, controllable silicon Q1 makes product be maintained work, central control unit 6 is continued to send the instruction of power-on, and then controllable silicon Q1 is continued to maintain conducting, controllable silicon Q1 and central control unit 6 are realized interlocking conducting).At first 10 minutes of the charging stage, if central control unit 6 monitors charging current < 40mA, with regard to the instruction of sending powered-down, switch control unit 7 cut off AC power at once, and charger quits work, and LED extinguishes; If monitor charging current >=40mA, send the instruction of power-on, switch control unit 7 continues to maintain AC power conducting, and charger works on, and LED continues to light.After charging 10 minutes, if CPU 6 monitors charging current > 100mA, the instruction of sending power-on, switch control unit 7 cuts off AC power, and charger quits work, and LED extinguishes; If CPU 6 continuous monitoring in 30S is arrived charging current between 40-100mA, CPU 6 proceeds to the countdown of closing that the floating charge stage starts 10 minutes, after countdown in 10 minutes finishes, central control unit 6 sends powered-down instruction, switch control unit 7 cuts off AC power, charger quits work, and LED extinguishes.No matter after still the charging 10 minutes for first 10 minutes of charging and close the countdown stage in charging, as long as charging current < 40mA (close current of setting namely), central control unit 6 just sends powered-down instruction immediately, switch control unit 7 cuts off AC power, charger quits work, and LED extinguishes.
Be more than the explanation of preferred embodiments of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (4)
1. a charger for zero stand-by power consumption, comprising:
AC power;
In rectification filtering unit 1, a resistance R 1B is connected with described AC power L end by fuse resistance R J, in rectification filtering unit 1, another first resistance R 1A is connected with described AC power N end, comprise: resistance R 1A and resistance R 1B, differential mode inductance L1 and differential mode inductance L2, capacitor C 1, rectifier bridge BG1 and pi type filter, described pi type filter is by two electric capacity in parallel, capacitor C 4 and capacitor C 5, and common mode inductance L3 forms, in parallel with capacitor C 1 after described resistance R 1A and resistance R 1B series connection, one end of capacitor C 1 connects interchange one end of rectifier bridge BG1 by differential mode inductance L2, the other end of capacitor C 1 connects one end of differential mode inductance L1, pi type filter is connected on the DC output end of rectifier bridge BG1,
Power conversion control unit 2 is connected with described rectification filtering unit 1, comprise: resistance R 4, resistance R 5, resistance R 6, resistance R 7, resistance R 8A and resistance R 8B, resistance R 9, resistance R 10, resistance R 11A and resistance R 11B, and capacitor C 6, capacitor C 7, capacitor C 8, three diodes are diode D1, diode D2, diode D3 and power supply chip IC1, the resistance that the vdd terminal mouth of described IC1 connects series connection is successively resistance R 6, resistance R 5, resistance R 4, resistance R 4 one end contact resistance R5, the other end connects pi type filter; The negative electrode of diode D2 is connected between resistance R 5 and resistance R 6, the anode of diode D2 connect with resistance R 9, resistance R 10 after ground connection; Resistance R 6 one end contact resistance R5, the other end connects the positive pole of capacitor C 6, the minus earth of capacitor C 6; Ground connection after the Comp port of described IC1 is connected with capacitor C 7, the INV port of described IC1 is connected between resistance R 9, resistance R 10, and by diode D3 ground connection, one end ground connection after resistance R 11A and resistance R 11B parallel connection, the other end is connected with the CS port of described IC1; Two equal ground connection of GND port of described IC1, two Drain ports of described IC1 are all connected to the anode of diode D1; Resistance R 7 is in parallel with resistance R 8A and R8B in parallel after connecting with capacitor C 8, and rear one end in parallel is connected to the pi type filter in rectification filtering unit 1, and the other end connects the negative electrode of diode D1;
Output rectification filter unit 3 is connected by switch transformer T1 with described power conversion control unit 2, power conversion control unit 2 resistance R 8B and resistance R 7 end and two ends, the diode D1 anode tap connecting valve former limit of transformer T1 altogether wherein, diode D2 anode tap and end first group of secondary two ends of connecting valve transformer T1, ground, the diode D4 anode tap of output rectification filter unit 3 and capacitor C 10 second group of secondary two ends of negative pole end connecting valve transformer T1, diode D1, diode D2, diode D3 anode tap is the Same Name of Ends of the former limit of switch transformer T1 and secondary, described output rectification filter unit 3 comprises: six resistance, i.e. resistance R 12, resistance R 13, resistance R 14, resistance R 15, resistance R 16, resistance R 17, four electric capacity, i.e. capacitor C 9, capacitor C 10, capacitor C 11, capacitor C 12, diode D4 and a USB interface, it is in parallel with resistance R 13 after capacitor C 10, capacitor C 11 and capacitor C 12 are in parallel, resistance R 12 and capacitor C 9 are connected afterwards and diode D4 is connected in parallel, and the negative electrode of diode D4 is connected to the positive pole of capacitor C 10, the minus earth of capacitor C 10, resistance R 14, the resistance R 16 of series connection and the resistance R 15 of connecting, resistance R 17 parallel connections, described USB interface is connected between resistance R 14, resistance R 16, and between resistance R 15, resistance R 17, be connected to the two ends of the parallel circuits of resistance R 14, the resistance R 16 of series connection and the resistance R 15 of connecting, resistance R 17 simultaneously, one end of this parallel circuits is contact resistance R13 also, and the other end connects current sampling unit 4,
Current sampling unit 4 comprises four resistance parallel with one another, i.e. resistance R 18, resistance R 19, resistance R 20, resistance R 21, in parallel after one end connect the resistance R 17 of output rectification filter unit 3, other end ground connection;
Signal amplification unit 5 is connected by resistance R 22 with described current sampling unit 4, comprises two-stage calculation amplifier, operational amplifier IC2A and operational amplifier IC2B; Four resistance, i.e. resistance R 23, resistance R 24, resistance R 25, resistance R 26; Four electric capacity, i.e. capacitor C 13, capacitor C 14, capacitor C 15, capacitor C 18; After resistance R 24 is in parallel with capacitor C 14, one end is connected with the negative input end of operational amplifier IC2A, the output of other end concatenation operation amplifier IC2A; After resistance R 26 is in parallel with capacitor C 15, one end is connected with the negative input end of operational amplifier IC2B, the output of other end concatenation operation amplifier IC2B; The output of operational amplifier IC2A is connected with the positive input terminal of operational amplifier IC2B; The negative input end of resistance R 23 one end concatenation operation amplifier IC2A, other end ground connection; The negative input end of resistance R 25 one end concatenation operation amplifier IC2B, other end ground connection; One end of capacitor C 13 one end contact resistance R22, other end ground connection; The output of capacitor C 18 one end concatenation operation amplifier IC2B, other end ground connection; The positive input terminal of the other end concatenation operation amplifier IC2A of resistance R 22;
Central control unit 6 is connected with described signal amplification unit 5, comprises high speed microprocessor IC3, capacitor C 17, resistance R 28 and LED, and described resistance R 28 one end are connected to the port P21 of high speed microprocessor IC3, resistance R 28 another termination powers after connecting with LED; The vdd terminal mouth of capacitor C 17 1 termination high speed microprocessor IC3, other end ground connection; The P20 port of high speed microprocessor IC3 connects the output of the operational amplifier IC2B of signal amplification unit 5; The P40 port of high speed microprocessor IC3 and the equal ground connection of VSS port;
It is characterized in that: described central control unit 6 is connected by switch control unit 7 with rectification filtering unit 1, described switch control unit 7 comprises optical coupler IC4, controllable silicon Q1, touch key SW, resistance R 2, resistance R 3, resistance R 29 and capacitor C 2, capacitor C 3; The optocoupler input anode of described optical coupler IC4 is connected with one end of resistance R 29, and the other end of resistance R 29 connects power supply; Optocoupler input negative electrode is connected with the P23 port of central control unit 6; 1 pin of described touch key SW respectively with one end of resistance R 3, and an optocoupler output of optical coupler IC4 is connected, 2 pin of touch key SW are connected with another optocoupler output, the G utmost point of controllable silicon Q1 and one end of capacitor C 3 of optical coupler IC4 respectively; The second main pole of described controllable silicon Q1 is connected with the other end of one end of resistance R 2, resistance R 3 and the other end of differential mode inductance L1, the first main pole is connected with the end that exchanges of one end of capacitor C 2, the other end of capacitor C 3 and rectifier bridge BG1, and the other end of resistance R 2 is connected with the other end of capacitor C 2.
2. the charger of zero stand-by power consumption according to claim 1, it is characterized in that: described central control unit 6 also comprises floating charge checkpoint K switch 1, cuts out checkpoint K switch 2, resistance R 27 and capacitor C 16, one end of resistance R 27 is connected respectively to closes the RESET end of checkpoint K switch 2, high speed microprocessor IC3 and one end of capacitor C 16, and the other end connects power supply; The other end ground connection of capacitor C 16; Floating charge checkpoint K switch 1 one end connects the P22 port of high speed microprocessor IC3, other end ground connection.
3. the charger of zero stand-by power consumption according to claim 1, is characterized in that: described high speed microprocessor IC3 is highly integrated, to have mould/number conversion microprocessor.
4. the charger of zero stand-by power consumption according to claim 1, is characterized in that: described 6 monitoring charging current and the charging intervals of central control unit.
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| CN201210004574.7A CN102437627B (en) | 2012-01-04 | 2012-01-04 | Charger without standby power consumption |
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| CN201210004574.7A CN102437627B (en) | 2012-01-04 | 2012-01-04 | Charger without standby power consumption |
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| CN102437627B true CN102437627B (en) | 2014-03-05 |
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| WO2020240070A1 (en) * | 2019-05-24 | 2020-12-03 | Brightcharger Europe Oy Ltd | Automatic charger switch off |
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| CN103490484B (en) * | 2013-10-24 | 2015-10-14 | 肖国选 | Fuzzy controller for charger for electric vehicle |
| CN105244980B (en) * | 2015-11-20 | 2017-10-17 | 深圳市祝你快乐科技有限公司 | A kind of energy-saving charger controlled based on mobile phone A PP |
| CN105244981B (en) | 2015-11-20 | 2017-12-26 | 深圳市祝你快乐科技有限公司 | A kind of energy-saving charger that can be automatically powered off |
| CN107306468A (en) * | 2016-04-21 | 2017-10-31 | 厦门网拓科技有限公司 | Single live wire OFF state power-supply circuit |
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| Silvestro Fimiani,Power Integrations公司.设计待机功耗仅为30mW的手机充电器.《电子设计技术》.2009,第66页. |
| 设计待机功耗仅为30mW的手机充电器;Silvestro Fimiani,Power Integrations公司;《电子设计技术》;20091231;第66页 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020240070A1 (en) * | 2019-05-24 | 2020-12-03 | Brightcharger Europe Oy Ltd | Automatic charger switch off |
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