CN104092263B - Multifunctional charger circuit - Google Patents
Multifunctional charger circuit Download PDFInfo
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- CN104092263B CN104092263B CN201410355193.2A CN201410355193A CN104092263B CN 104092263 B CN104092263 B CN 104092263B CN 201410355193 A CN201410355193 A CN 201410355193A CN 104092263 B CN104092263 B CN 104092263B
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Abstract
A kind of multifunctional charger circuit, relate to a kind of charger circuit, formed by power supply input circuit, high-frequency switch circuit, output circuit, level pressure control circuit and current regulating circuit, wherein, input control circuit is made up of power input interface, full-bridge integrated package, filter condenser a, dropping resistor, filter condenser b and Zener diode; High-frequency switch circuit is made up of oscillation resistance, oscillating capacitor, not gate a, isolating diode, not gate b, driving resistance, FET and high frequency transformer; Output circuit is made up of change-over switch, charging output interface, sample resistance and commutation diode; Level pressure control circuit is made up of level pressure diode a-level pressure diode e, current-limiting resistance b, biasing resistor, triode, optical coupler a and band switch; Current regulating circuit is made up of current-limiting resistance c, optical coupler b and discharge resistance. The present invention is compatible uses the power supply such as alternating current, direct current, solar photocell of different voltages to charge to various battery.
Description
Technical field
The present invention relates to electronic circuit, specially refer to a kind of charger circuit.
Background technology
Charger is of many uses in every field, is particularly widely used in the common electrical equipment of mobile phone, camera, electric motor car etc. at sphere of life. Taking battery as working power or the electricity consumption occasion of stand-by power supply, charger is with a wide range of applications.
In field of solar thermal power generation, charger is converted to electric energy by solar energy and is stored in battery the inside later, and battery can be any type of electrical storage device, and the load of battery is multifarious, as illuminating lamp, water pump, fan, air-conditioning, electronic cook ware etc.
Existing charger function is more single, and much equipment need be equipped with special charger, and the battery of different voltages also needs to be equipped with different chargers.
Summary of the invention
The object of the invention is to provide a kind of multifunctional charger circuit, make charger can compatible use the power supply such as alternating current, direct current, solar photocell of different voltages, and can charge to the battery of various different voltages, use to meet various device and various occasion, reduce outfit kind or the quantity of charger, saving resource.
A kind of multifunctional charger circuit of the present invention, it is characterized in that charger circuit is made up of power supply input circuit, high-frequency switch circuit, output circuit, level pressure control circuit and current regulating circuit, wherein, input control circuit is by power input interface (X1), full-bridge integrated package (IC1), filter condenser a(C2), dropping resistor (R4), filter condenser b(C3) and Zener diode (V1) form, high-frequency switch circuit is by oscillation resistance (R2), oscillating capacitor (C1), not gate a(IC2), isolating diode (V2), not gate b(IC3), drive resistance (R6), FET (VT2) and high frequency transformer (T) formation, high frequency transformer (T) comprises primary coil and secondary coil, primary coil has line end a and line end b to pick out, secondary coil has line end c, line end d and line end e to pick out, line end c is boost terminal, line end d is step-down end, and line end e is loop end, output circuit is made up of change-over switch (K), charging output interface (X2), sample resistance (R10) and commutation diode (V7), has two stationary contacts and a movable contact on change-over switch (K), and charging output interface (X2) comprises anode and negative terminal, level pressure control circuit is by level pressure diode a(V8), level pressure diode b(V9), level pressure diode c(V10), level pressure diode d(V11), level pressure diode e(V12), current-limiting resistance b(R9), biasing resistor (R12), triode (VT2), optical coupler a(IC4) and band switch (Q) form, on band switch (Q), have a movable contact and five stationary contacts, current regulating circuit is by current-limiting resistance c(R11), optical coupler b(IC5) and discharge resistance (R3) form, in power supply input circuit, power input interface (X1) is connected to the input of full-bridge integrated package (IC1), the positive pole of full-bridge integrated package (IC1) is connected to filter condenser a(C2) positive pole, the line end a of the first pin of dropping resistor (R4) and high frequency transformer (T), the negative pole of full-bridge integrated package (IC1) and filter condenser a(C2) negative pole be connected to ground wire, the crus secunda of dropping resistor (R4) and filter condenser b(C3) positive pole and the negative electrode of Zener diode (V1) form working power (V+) after being connected, filter condenser b(C3) negative pole and the anodic bonding of Zener diode (V1) to ground wire, in high-frequency switch circuit, the first pin of oscillation resistance (R2) is connected to the first pin and the not gate a(IC2 of oscillating capacitor (C1)) input, the crus secunda of oscillating capacitor (C1) is connected to ground wire, not gate a(IC2) output be connected to the crus secunda of oscillation resistance (R5) and the anode of isolating diode (V2), the negative electrode of isolating diode (V2) is connected to not gate b(IC3) input, not gate b(IC3) output by driving resistance (R6) to be connected to the grid of FET (VT1), the source electrode of FET (VT1) is connected to ground wire, the drain electrode of FET (VT1) is connected to the line end b of high frequency transformer (T), in output circuit, two stationary contacts of change-over switch (K) are connected respectively to the line end c of high frequency transformer (T), on line end b, change-over switch (K) stationary contact being connected with line end c forms the gear that boosts, change-over switch (K) stationary contact being connected with line end b forms step-down gear, the movable contact of change-over switch (K) is connected to the anode of charging output interface (X2), the negative terminal of charging output interface (X2) is connected to the crus secunda of sample resistance (R10), the first pin of sample resistance (R10) is connected to the anode of commutation diode (V7), the negative electrode of commutation diode (V7) is connected on the line end e of high frequency transformer (T), in level pressure control circuit, level pressure diode a(V8) negative electrode, level pressure diode b(V9) negative electrode, level pressure diode c(V10) negative electrode, level pressure diode d(V11) negative electrode and level pressure diode e(V12) negative electrode be connected to charging output interface (X2) anode, level pressure diode a(V8) anode, level pressure diode b(V9) anode, level pressure diode c(V10) anode, level pressure diode d(V11) anode and level pressure diode e(V12) anode be connected to successively on five stationary contacts of band switch (Q), the movable contact of band switch (Q) is connected to the base stage of triode (VT2) by biasing resistor (R12), the colelctor electrode of triode (VT2) is by current-limiting resistance b(R9) be connected to charging output interface (X2) anode, the emitter stage of triode (VT2) is connected to optical coupler a(IC4) the first pin, optical coupler a(IC4) crus secunda be connected to charging output interface (X2) negative terminal, optical coupler a(IC4) tripod be connected to working power (V+), optical coupler a(IC4) the 4th pin be connected to not gate b(IC3) input, in current regulating circuit, current-limiting resistance c(R11) crus secunda be connected to the crus secunda of sample resistance (R10), current-limiting resistance c(R11) the first pin be connected to optical coupler b(IC5) the first pin, optical coupler b(IC5) crus secunda be connected to the first pin of sample resistance (R10), optical coupler b(IC5) tripod be connected to not gate a(IC2 by discharge resistance (R3)) input, optical coupler b(IC5) the 4th pin be connected to not gate a(IC2) output.
In the present invention, at not gate b(IC3) input and ground wire between You Bang road resistance (R1); Between the line end a of high frequency transformer (T) and line end b, have absorption resistance a(R5), absorption capacitor a(C4) and absorption diode a(V3), absorption resistance a(R5) the first pin and absorption capacitor a(C4) the first pin be connected to the line end a of high frequency transformer (T), absorption resistance a(R5) crus secunda and absorption capacitor a(C4) crus secunda be connected to absorption diode a(V3) negative electrode, absorption diode a(V3) anodic bonding to the line end b of high frequency transformer (T); Between the drain electrode of being on the scene effect pipe (VT1) and source electrode, have absorption capacitor b(C5), absorption diode b(V4) and absorption resistance b(R7), absorption capacitor b(C5) the first pin be connected to the drain electrode of FET (VT1), absorption capacitor b(C5) crus secunda be connected to absorption diode b(V4) negative electrode and absorption resistance b(R7) the first pin, absorption diode b(V4) anode and absorption resistance b(R7) crus secunda be connected to the source electrode of FET (VT1); Current limiting resistance a(R8 between the line end d of high frequency transformer (T) and line end e), protection diode (V5) and indicator lamp diode (V6), current-limiting resistance a(R8) the first pin be connected to the line end d of high frequency transformer (T), current-limiting resistance a(R8) crus secunda be connected to protection diode (V5) anode, the negative electrode of protection diode (V5) is connected to the anode of indicator lamp diode (V6), and the negative electrode of indicator lamp diode (V6) is connected to the line end e of high frequency transformer (T); Not gate a(IC2) and not gate b(IC3) share a digital integrated electronic circuit with six not gates, four unnecessary not gates are parallel to not gate b(IC3) on, the earth terminal of digital integrated electronic circuit is connected to ground wire, and the power end of digital integrated electronic circuit is connected to working power (V+); In level pressure control circuit, have buzzer (Y), in the time having buzzer (Y) in level pressure control circuit, optical coupler a(IC4) crus secunda be connected to the negative terminal of charging output interface (X2) by buzzer (Y).
The present invention can compatible use battery or the standby batteries of power supply to equipment such as the alternating current, direct current, solar photocell of different voltages to charge. in the time using the AC power of 220V to charge to battery, change-over switch (K) is switched on step-down gear, the alternating current of 220V is by after full-bridge integrated package (IC1) rectification, again by filter condenser a(C2) carry out filtering, become the primary coil that galvanic current source is input to high frequency transformer (T), undertaken after step-down by dropping resistor (R4) simultaneously, again by filter condenser b(C3) and Zener diode (V1) carry out filtering and voltage stabilizing, as working power (V+) offer digital integrated electronic circuit use, by oscillation resistance (R2), oscillating capacitor (C1) and not gate a(IC2) high-frequency oscillation signal that produces is by not gate b(IC3) amplify, promote FET (VT1) and carry out HF switch action, the electric energy of high frequency transformer (T) primary coil is sensed on secondary coil, because change-over switch (K) switches on step-down gear, voltage on secondary coil is by the voltage lower than input power, and the electric energy on secondary coil charges to battery by commutation diode (V7), in the time that charging current increases, voltage on the crus secunda of sample resistance (R10) just increases, optical coupler b(IC5) brightness of internal illumination pipe is with regard to blast, optical coupler b(IC5) internal resistance of inner receiving tube just reduces, oscillating capacitor (C1) is by discharge resistance (R3), optical coupler b(IC5) inner receiving tube and not gate a(IC2) the output speed of discharging just speed, the dutycycle of high-frequency oscillation signal is reduced, the ON time of FET (VT1) shortens, the electric energy sensing on high frequency transformer (T) secondary coil is reduced, thereby reduce charging current, otherwise, in the time that charging current reduces, optical coupler b(IC5) internal resistance of inner receiving tube just increases, the dutycycle of high-frequency oscillation signal is increased, and the ON time of FET (VT1) increases, and the electric energy sensing on high frequency transformer (T) secondary coil is increased, thereby increase charging current, by the automatic adjusting of current regulating circuit, charging current is controlled in suitable scope, and makes charging current constant. in the time using dc source to charge to battery, the positive pole of dc source and negative pole can be connected to arbitrarily on power input interface (X1), and do not need to distinguish polarity, when the voltage of dc source is when accepting the battery tension of charging, still change-over switch (K) is switched on step-down gear and is charged, the voltage of solar photocell is often lower than the voltage of battery, when the voltage of charge power supply is when by the voltage of rechargeable battery, change-over switch (K) is switched to and is boosted on gear, the voltage raising by high frequency transformer (T) boost terminal charges to battery, at this moment, current regulating circuit can be controlled at charging current in suitable scope and make charging current constant equally.
When concrete enforcement: level pressure diode a(V8) use the voltage-stabiliser tube of 6V, level pressure diode a(V8) the stationary contact gear of anodic bonding is the charging gear of 6 overhead accumulators, level pressure diode b(V9) select the voltage-stabiliser tube of 12V, level pressure diode b(V9) the stationary contact gear of anodic bonding is the charging gear of 12 overhead accumulators, remaining the like, there are respectively 24 volts, 36 volts, the charging gear of 48 overhead accumulators. when the battery of different voltages is charged, band switch (Q) is switched on corresponding charging gear, in the time of battery full charge, just there is electric current to be input to the base stage of triode (VT2) by corresponding level pressure diode, make triode (VT2) conducting, light optical coupler a(IC4) inner luminous tube, make optical coupler a(IC4) inner receiving tube conducting, the voltage of working power (V+) is by optical coupler a(IC4) inner receiving tube is input to not gate b(IC3) input, make not gate b(IC3) block, not gate b(IC3) output there is no signal output, FET (VT1) cut-off, thereby make the secondary electric energy that loses induction of high frequency transformer (T), charger stops charging automatically, simultaneously, buzzer (Y) sends voice prompt, inform operating personnel, charging completes, operating personnel remove charged battery, change the other battery that needs charging and proceed charging.
The invention has the beneficial effects as follows: a kind of multifunctional charger circuit providing, make charger can compatible use the power supply such as alternating current, direct current, solar photocell of different voltages, and can charge to the battery of various different voltages, use to meet various device and various occasion, reduce outfit kind or the quantity of charger, saving resource.
Brief description of the drawings
Fig. 1 is the block diagram of a kind of multifunctional charger circuit of the present invention.
Fig. 2 is a kind of multifunctional charger circuit diagram of the present invention.
In figure: the resistance of R1.Bang road, R2. oscillation resistance, R3. discharge resistance, R4. dropping resistor, R5. absorption resistance a, R6. drive resistance, R7. absorption resistance b, R8. current-limiting resistance a, R9. current-limiting resistance b, R10. sample resistance, R11. current-limiting resistance c, R12. biasing resistor, C1. oscillating capacitor, C2. filter condenser a, C3. filter condenser b, C4. absorption capacitor a, C5. absorption capacitor b, V1. Zener diode, V2. isolating diode, V3. absorption diode a, V4. absorption diode b, V5. protect diode, V6. indicator lamp diode, V7. commutation diode, V8. level pressure diode a, V9. level pressure diode b, V10. level pressure diode c, V11. level pressure diode d, V12. level pressure diode e, VT1. FET, VT2. triode, V+. working power, IC1. full-bridge integrated package, IC2. not gate a, IC3. not gate b, IC4. optical coupler a, IC5. optical coupler b, T. high frequency transformer, Y. buzzer, X1. power input interface, X2. output interface charges, K. change-over switch, Q. band switch, E. accept the battery of charging.
Detailed description of the invention
EmbodimentIn embodiment shown in Fig. 1 and Fig. 2, multifunctional charger circuit is made up of power supply input circuit, high-frequency switch circuit, output circuit, level pressure control circuit and current regulating circuit, wherein, input control circuit is by power input interface (X1), full-bridge integrated package (IC1), filter condenser a(C2), dropping resistor (R4), filter condenser b(C3) and Zener diode (V1) form, high-frequency switch circuit is by oscillation resistance (R2), oscillating capacitor (C1), not gate a(IC2), isolating diode (V2), be close to road resistance (R1), not gate b(IC3), drive resistance (R6), FET (VT2), absorption resistance a(R5), absorption capacitor a(C4), absorption diode a(V3), absorption capacitor b(C5), absorption diode b(V4), absorption resistance b(R7) and high frequency transformer (T) formation, high frequency transformer (T) comprises primary coil and secondary coil, primary coil has line end a and line end b to pick out, secondary coil has line end c, line end d and line end e pick out, line end c is boost terminal, line end d is step-down end, line end e is loop end, output circuit is made up of change-over switch (K), charging output interface (X2), sample resistance (R10) and commutation diode (V7), has two stationary contacts and a movable contact on change-over switch (K), and charging output interface (X2) comprises anode and negative terminal, level pressure control circuit is by level pressure diode a(V8), level pressure diode b(V9), level pressure diode c(V10), level pressure diode d(V11), level pressure diode e(V12), current-limiting resistance b(R9), biasing resistor (R12), triode (VT2), optical coupler a(IC4), band switch (Q) and buzzer (Y) form, and has a movable contact and five stationary contacts on band switch (Q), current regulating circuit is by current-limiting resistance c(R11), optical coupler b(IC5) and discharge resistance (R3) form, in power supply input circuit, power input interface (X1) is connected to the input of full-bridge integrated package (IC1), the positive pole of full-bridge integrated package (IC1) is connected to filter condenser a(C2) positive pole, the line end a of the first pin of dropping resistor (R4) and high frequency transformer (T), the negative pole of full-bridge integrated package (IC1) and filter condenser a(C2) negative pole be connected to ground wire, the crus secunda of dropping resistor (R4) and filter condenser b(C3) positive pole and the negative electrode of Zener diode (V1) form working power (V+) after being connected, filter condenser b(C3) negative pole and the anodic bonding of Zener diode (V1) to ground wire, in high-frequency switch circuit, the first pin of oscillation resistance (R2) is connected to the first pin and the not gate a(IC2 of oscillating capacitor (C1)) input, the crus secunda of oscillating capacitor (C1) is connected to ground wire, not gate a(IC2) output be connected to the crus secunda of oscillation resistance (R5) and the anode of isolating diode (V2), the negative electrode of isolating diode (V2) is connected to not gate b(IC3) the first pin of input He Bang road resistance (R1), the crus secunda that is close to road resistance (R1) is connected to ground wire, not gate b(IC3) output by driving resistance (R6) to be connected to the grid of FET (VT1), the source electrode of FET (VT1) is connected to ground wire, the drain electrode of FET (VT1) is connected to absorption capacitor b(C5) the first pin, absorption diode a(V3) anode and the line end b of high frequency transformer (T), absorption capacitor b(C5) crus secunda be connected to absorption diode b(V4) negative electrode and absorption resistance b(R7) the first pin, absorption diode b(V4) anode and absorption resistance b(R7) crus secunda be connected to the source electrode of FET (VT1), absorption diode a(V3) negative electrode be connected to absorption resistance a(R5) crus secunda and absorption capacitor a(C4) crus secunda, absorption resistance a(R5) the first pin and absorption capacitor a(C4) the first pin be connected to the line end a of high frequency transformer (T), in output circuit, two stationary contacts of change-over switch (K) are connected respectively to the line end c of high frequency transformer (T), on line end b, change-over switch (K) stationary contact being connected with line end c forms the gear that boosts, change-over switch (K) stationary contact being connected with line end b forms step-down gear, the movable contact of change-over switch (K) is connected to the anode of charging output interface (X2), the negative terminal of charging output interface (X2) is connected to the crus secunda of sample resistance (R10), the first pin of sample resistance (R10) is connected to the anode of commutation diode (V7), the negative electrode of commutation diode (V7) is connected on the line end e of high frequency transformer (T), in level pressure control circuit, level pressure diode a(V8) negative electrode, level pressure diode b(V9) negative electrode, level pressure diode c(V10) negative electrode, level pressure diode d(V11) negative electrode and level pressure diode e(V12) negative electrode be connected to charging output interface (X2) anode, level pressure diode a(V8) anode, level pressure diode b(V9) anode, level pressure diode c(V10) anode, level pressure diode d(V11) anode and level pressure diode e(V12) anode be connected to successively on five stationary contacts of band switch (Q), the movable contact of band switch (Q) is connected to the base stage of triode (VT2) by biasing resistor (R12), the colelctor electrode of triode (VT2) is by current-limiting resistance b(R9) be connected to charging output interface (X2) anode, the emitter stage of triode (VT2) is connected to optical coupler a(IC4) the first pin, optical coupler a(IC4) crus secunda by buzzer (Y) be connected to charging output interface (X2) negative terminal, optical coupler a(IC4) tripod be connected to working power (V+), optical coupler a(IC4) the 4th pin be connected to not gate b(IC3) input, in current regulating circuit, current-limiting resistance c(R11) crus secunda be connected to the crus secunda of sample resistance (R10), current-limiting resistance c(R11) the first pin be connected to optical coupler b(IC5) the first pin, optical coupler b(IC5) crus secunda be connected to the first pin of sample resistance (R10), optical coupler b(IC5) tripod be connected to not gate a(IC2 by discharge resistance (R3)) input, optical coupler b(IC5) the 4th pin be connected to not gate a(IC2) output. in the present embodiment, current limiting resistance a(R8 between the line end d of high frequency transformer (T) and line end e), protection diode (V5) and indicator lamp diode (V6), current-limiting resistance a(R8) the first pin be connected to the line end c of high frequency transformer (T), current-limiting resistance a(R8) crus secunda be connected to protection diode (V5) anode, the negative electrode of protection diode (V5) is connected to the anode of indicator lamp diode (V6), the negative electrode of indicator lamp diode (V6) is connected to the line end d of high frequency transformer (T), in the time that high frequency transformer (T) secondary has induced voltage, indicator lamp diode (V6) is lit, not gate a(IC2) and not gate b(IC3) share a digital integrated electronic circuit with six not gates, four unnecessary not gates are parallel to not gate b(IC3) on, the earth terminal of digital integrated electronic circuit is connected to ground wire, and the power end of digital integrated electronic circuit is connected to working power (V+).
The present embodiment can compatible use battery or the standby batteries of power supply to equipment such as the alternating current, direct current, solar photocell of different voltages to charge. in the time using the AC power of 220V to charge to battery, change-over switch (K) is switched on step-down gear, the alternating current of 220V is by after full-bridge integrated package (IC1) rectification, again by filter condenser a(C2) carry out filtering, become the primary coil that galvanic current source is input to high frequency transformer (T), undertaken after step-down by dropping resistor (R4) simultaneously, again by filter condenser b(C3) and Zener diode (V1) carry out filtering and voltage stabilizing, as working power (V+) offer digital integrated electronic circuit use, by oscillation resistance (R2), oscillating capacitor (C1) and not gate a(IC2) high-frequency oscillation signal that produces is by not gate b(IC3) amplify, promote FET (VT1) and carry out HF switch action, the electric energy of high frequency transformer (T) primary coil is sensed on secondary coil, because change-over switch (K) switches on step-down gear, voltage on secondary coil is by the voltage lower than input power, and the electric energy on secondary coil charges to battery by commutation diode (V7), in the time that charging current increases, voltage on the crus secunda of sample resistance (R10) just increases, optical coupler b(IC5) brightness of internal illumination pipe is with regard to blast, optical coupler b(IC5) internal resistance of inner receiving tube just reduces, oscillating capacitor (C1) is by discharge resistance (R3), optical coupler b(IC5) inner receiving tube and not gate a(IC2) the output speed of discharging just speed, the dutycycle of high-frequency oscillation signal is reduced, the ON time of FET (VT1) shortens, the electric energy sensing on high frequency transformer (T) secondary coil is reduced, thereby reduce charging current, otherwise, in the time that charging current reduces, optical coupler b(IC5) internal resistance of inner receiving tube just increases, the dutycycle of high-frequency oscillation signal is increased, and the ON time of FET (VT1) increases, and the electric energy sensing on high frequency transformer (T) secondary coil is increased, thereby increase charging current, by the automatic adjusting of current regulating circuit, charging current is controlled in suitable scope, and makes charging current constant. in the time using dc source to charge to battery, the positive pole of dc source and negative pole can be connected to arbitrarily on power input interface (X1), and do not need to distinguish polarity, when the voltage of dc source is when accepting the battery tension of charging, still change-over switch (K) is switched on step-down gear and is charged, the voltage of solar photocell is often lower than the voltage of battery, when the voltage of charge power supply is when by the voltage of rechargeable battery, change-over switch (K) is switched to and is boosted on gear, the voltage raising by high frequency transformer (T) boost terminal charges to battery, at this moment, current regulating circuit can be controlled at charging current in suitable scope and make charging current constant equally.
In the above embodiments: level pressure diode a(V8) use the voltage-stabiliser tube of 6V, level pressure diode a(V8) the stationary contact gear of anodic bonding is the charging gear of 6 overhead accumulators, level pressure diode b(V9) select the voltage-stabiliser tube of 12V, level pressure diode b(V9) the stationary contact gear of anodic bonding is the charging gear of 12 overhead accumulators, remaining the like, there are respectively 24 volts, 36 volts, the charging gear of 48 overhead accumulators. when the battery of different voltages is charged, band switch (Q) is switched on corresponding charging gear, in the time of battery full charge, there is electric current to be input to the base stage of triode (VT2) by corresponding level pressure diode, make triode (VT2) conducting, light optical coupler a(IC4) inner luminous tube, make optical coupler a(IC4) inner receiving tube conducting, the voltage of working power (V+) is by optical coupler a(IC4) inner receiving tube is input to not gate b(IC3) input, make not gate b(IC3) block, not gate b(IC3) output there is no signal output, FET (VT1) cut-off, thereby make the secondary electric energy that loses induction of high frequency transformer (T), charger stops charging automatically, simultaneously, buzzer (Y) sends voice prompt, inform operating personnel, charging completes, operating personnel remove charged battery, change the other battery that needs charging and proceed charging.
Claims (7)
1. a multifunctional charger circuit, it is characterized in that charger circuit is made up of power supply input circuit, high-frequency switch circuit, output circuit, level pressure control circuit and current regulating circuit, wherein, input control circuit is by power input interface (X1), full-bridge integrated package (IC1), filter condenser a(C2), dropping resistor (R4), filter condenser b(C3) and Zener diode (V1) form; High-frequency switch circuit is by oscillation resistance (R2), oscillating capacitor (C1), not gate a(IC2), isolating diode (V2), not gate b(IC3), drive resistance (R6), FET (VT2) and high frequency transformer (T) formation, high frequency transformer (T) comprises primary coil and secondary coil, primary coil has line end a and line end b to pick out, secondary coil has line end c, line end d and line end e to pick out, line end c is boost terminal, line end d is step-down end, and line end e is loop end; Output circuit is made up of change-over switch (K), charging output interface (X2), sample resistance (R10) and commutation diode (V7), has two stationary contacts and a movable contact on change-over switch (K), and charging output interface (X2) comprises anode and negative terminal; Level pressure control circuit is by level pressure diode a(V8), level pressure diode b(V9), level pressure diode c(V10), level pressure diode d(V11), level pressure diode e(V12), current-limiting resistance b(R9), biasing resistor (R12), triode (VT2), optical coupler a(IC4) and band switch (Q) form, on band switch (Q), have a movable contact and five stationary contacts; Current regulating circuit is by current-limiting resistance c(R11), optical coupler b(IC5) and discharge resistance (R3) form;
In power supply input circuit, power input interface (X1) is connected to the input of full-bridge integrated package (IC1), the positive pole of full-bridge integrated package (IC1) is connected to filter condenser a(C2) positive pole, the line end a of the first pin of dropping resistor (R4) and high frequency transformer (T), the negative pole of full-bridge integrated package (IC1) and filter condenser a(C2) negative pole be connected to ground wire, the crus secunda of dropping resistor (R4) and filter condenser b(C3) positive pole and the negative electrode of Zener diode (V1) form working power (V+) after being connected, filter condenser b(C3) negative pole and the anodic bonding of Zener diode (V1) to ground wire,
In high-frequency switch circuit, the first pin of oscillation resistance (R2) is connected to the first pin and the not gate a(IC2 of oscillating capacitor (C1)) input, the crus secunda of oscillating capacitor (C1) is connected to ground wire, not gate a(IC2) output be connected to the crus secunda of oscillation resistance (R5) and the anode of isolating diode (V2), the negative electrode of isolating diode (V2) is connected to not gate b(IC3) input, not gate b(IC3) output by driving resistance (R6) to be connected to the grid of FET (VT1), the source electrode of FET (VT1) is connected to ground wire, the drain electrode of FET (VT1) is connected to the line end b of high frequency transformer (T),
In output circuit, two stationary contacts of change-over switch (K) are connected respectively to the line end c of high frequency transformer (T), on line end b, change-over switch (K) stationary contact being connected with line end c forms the gear that boosts, change-over switch (K) stationary contact being connected with line end b forms step-down gear, the movable contact of change-over switch (K) is connected to the anode of charging output interface (X2), the negative terminal of charging output interface (X2) is connected to the crus secunda of sample resistance (R10), the first pin of sample resistance (R10) is connected to the anode of commutation diode (V7), the negative electrode of commutation diode (V7) is connected on the line end e of high frequency transformer (T),
In level pressure control circuit, level pressure diode a(V8) negative electrode, level pressure diode b(V9) negative electrode, level pressure diode c(V10) negative electrode, level pressure diode d(V11) negative electrode and level pressure diode e(V12) negative electrode be connected to charging output interface (X2) anode, level pressure diode a(V8) anode, level pressure diode b(V9) anode, level pressure diode c(V10) anode, level pressure diode d(V11) anode and level pressure diode e(V12) anode be connected to successively on five stationary contacts of band switch (Q), the movable contact of band switch (Q) is connected to the base stage of triode (VT2) by biasing resistor (R12), the colelctor electrode of triode (VT2) is by current-limiting resistance b(R9) be connected to charging output interface (X2) anode, the emitter stage of triode (VT2) is connected to optical coupler a(IC4) the first pin, optical coupler a(IC4) crus secunda be connected to charging output interface (X2) negative terminal, optical coupler a(IC4) tripod be connected to working power (V+), optical coupler a(IC4) the 4th pin be connected to not gate b(IC3) input,
In current regulating circuit, current-limiting resistance c(R11) crus secunda be connected to the crus secunda of sample resistance (R10), current-limiting resistance c(R11) the first pin be connected to optical coupler b(IC5) the first pin, optical coupler b(IC5) crus secunda be connected to the first pin of sample resistance (R10), optical coupler b(IC5) tripod be connected to not gate a(IC2 by discharge resistance (R3)) input, optical coupler b(IC5) the 4th pin be connected to not gate a(IC2) output.
2. a kind of multifunctional charger circuit according to claim 1, is characterized in that at not gate b(IC3) input and ground wire between You Bang road resistance (R1).
3. a kind of multifunctional charger circuit according to claim 1, it is characterized in that there is absorption resistance a(R5 between the line end a of high frequency transformer (T) and line end b), absorption capacitor a(C4) and absorption diode a(V3), absorption resistance a(R5) the first pin and absorption capacitor a(C4) the first pin be connected to the line end a of high frequency transformer (T), absorption resistance a(R5) crus secunda and absorption capacitor a(C4) crus secunda be connected to absorption diode a(V3) negative electrode, absorption diode a(V3) anodic bonding to the line end b of high frequency transformer (T).
4. a kind of multifunctional charger circuit according to claim 1, it is characterized in that there is absorption capacitor b(C5 between the drain electrode of being on the scene effect pipe (VT1) and source electrode), absorption diode b(V4) and absorption resistance b(R7), absorption capacitor b(C5) the first pin be connected to the drain electrode of FET (VT1), absorption capacitor b(C5) crus secunda be connected to absorption diode b(V4) negative electrode and absorption resistance b(R7) the first pin, absorption diode b(V4) anode and absorption resistance b(R7) crus secunda be connected to the source electrode of FET (VT1).
5. a kind of multifunctional charger circuit according to claim 1, it is characterized in that current limiting resistance a(R8 between the line end d of high frequency transformer (T) and line end e), protection diode (V5) and indicator lamp diode (V6), current-limiting resistance a(R8) the first pin be connected to the line end d of high frequency transformer (T), current-limiting resistance a(R8) crus secunda be connected to protection diode (V5) anode, the negative electrode of protection diode (V5) is connected to the anode of indicator lamp diode (V6), the negative electrode of indicator lamp diode (V6) is connected to the line end e of high frequency transformer (T).
6. a kind of multifunctional charger circuit according to claim 1, it is characterized in that not gate a(IC2) and not gate b(IC3) share a digital integrated electronic circuit with six not gates, four unnecessary not gates are parallel to not gate b(IC3) on, the earth terminal of digital integrated electronic circuit is connected to ground wire, and the power end of digital integrated electronic circuit is connected to working power (V+).
7. a kind of multifunctional charger circuit according to claim 1, it is characterized in that in level pressure control circuit, there is buzzer (Y), in the time having buzzer (Y) in level pressure control circuit, optical coupler a(IC4) crus secunda be connected to the negative terminal of charging output interface (X2) by buzzer (Y).
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| CN203967802U (en) * | 2014-07-25 | 2014-11-26 | 衢州迪升工业设计有限公司 | Multifunctional charger circuit |
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