CN203967802U - Multifunctional charger circuit - Google Patents
Multifunctional charger circuit Download PDFInfo
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- CN203967802U CN203967802U CN201420411543.8U CN201420411543U CN203967802U CN 203967802 U CN203967802 U CN 203967802U CN 201420411543 U CN201420411543 U CN 201420411543U CN 203967802 U CN203967802 U CN 203967802U
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Abstract
A kind of multifunctional charger circuit, relate to a kind of charger circuit, by power supply input circuit, high-frequency switch circuit, output circuit, level pressure control circuit and current regulating circuit, formed, wherein, input control circuit consists of power input interface, full-bridge integrated package, filtering capacitor a, dropping resistor, filtering capacitor b and voltage stabilizing didoe; High-frequency switch circuit consists of oscillation resistance, oscillating capacitor, not gate a, isolating diode, not gate b, driving resistance, field effect transistor and high frequency transformer; Output circuit consists of change over switch, charging output interface, sample resistance and rectifier diode; Level pressure control circuit consists 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 consists of current-limiting resistance c, optical coupler b and discharge resistance.The power supplys such as the alternating current of the different voltages of the compatible use of the utility model, direct current, solar photocell charge to various storage battery.
Description
Technical field
The utility model relates to electronic circuit, specially refers to a kind of charger circuit.
Background technology
Charger is of many uses in every field, particularly at sphere of life, is widely used in the common electrical equipment of mobile phone, camera, electric motor car etc.Take the electricity consumption occasion that storage battery is working power or 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 storage battery the inside later, and storage battery can be any type of electrical storage device, and the load of storage 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 storage battery of different voltages also needs to be equipped with different chargers.
Utility model content
The purpose of this utility model is that a kind of multifunctional charger circuit will be provided, make charger energy compatibility use the power supplys such as the alternating current of different voltages, direct current, solar photocell, and can charge to the storage battery of various different voltages, to meet various device and various occasion, use, reduce outfit kind or the quantity of charger, saving resource.
A kind of multifunctional charger circuit of the present utility model, it is characterized in that charger circuit is comprised 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), filtering capacitor a(C2), dropping resistor (R4), filtering capacitor b(C3) and voltage stabilizing didoe (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), field effect transistor (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 consists of change over switch (K), charging output interface (X2), sample resistance (R10) and rectifier diode (V7), has two fixed contacts and a moving 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 moving contact and five fixed 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 filtering capacitor 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 filtering capacitor a(C2) negative pole be connected to ground wire, the crus secunda of dropping resistor (R4) and filtering capacitor b(C3) positive pole and the negative electrode of voltage stabilizing didoe (V1) form working power (V+) after being connected, the anodic bonding of negative pole filtering capacitor b(C3) and voltage stabilizing didoe (V1) is 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 is 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 is by driving resistance (R6) to be connected to the grid of field effect transistor (VT1), the source electrode of field effect transistor (VT1) is connected to ground wire, the drain electrode of field effect transistor (VT1) is connected to the line end b of high frequency transformer (T), in output circuit, two fixed 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) fixed contact being connected with line end c forms the gear that boosts, change over switch (K) fixed contact being connected with line end b forms step-down gear, the moving 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 rectifier diode (V7), the negative electrode of rectifier 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 fixed contacts of band switch (Q), the moving contact of band switch (Q) is connected to the base stage of triode (VT2) by biasing resistor (R12), the collector electrode of triode (VT2) is by current-limiting resistance b(R9) be connected to charging output interface (X2) anode, the emitter of triode (VT2) is connected to optical coupler a(IC4) the first pin, optical coupler a(IC4) crus secunda is connected to the negative terminal of charging output interface (X2), optical coupler a(IC4) tripod is connected to working power (V+), optical coupler a(IC4) the 4th pin is connected to not gate b(IC3) input, in current regulating circuit, current-limiting resistance c(R11) crus secunda is connected to the crus secunda of sample resistance (R10), current-limiting resistance c(R11) the first pin is connected to optical coupler b(IC5) the first pin, optical coupler b(IC5) crus secunda is connected to the first pin of sample resistance (R10), optical coupler b(IC5) tripod is 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 utility model, 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 is connected to the drain electrode of field effect transistor (VT1), absorption capacitor b(C5) crus secunda is 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 field effect transistor (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 light diode (V6), current-limiting resistance a(R8) the first pin is connected to the line end d of high frequency transformer (T), current-limiting resistance a(R8) crus secunda is connected to the anode of protection diode (V5), the negative electrode of protection diode (V5) is connected to the anode of indicator light diode (V6), and the negative electrode of indicator light 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 circuit with six not gates, four unnecessary not gates are parallel to not gate b(IC3) on, the earth terminal of digital integrated circuit is connected to ground wire, and the power end of digital integrated circuit is connected to working power (V+); In level pressure control circuit, have buzzer (Y), while having buzzer (Y) in level pressure control circuit, optical coupler a(IC4) crus secunda by buzzer (Y), be connected to the negative terminal of charging output interface (X2).
The power supplys such as the alternating current of the different voltages of the compatible use of the utility model energy, direct current, solar photocell charge to the storage battery of equipment or standby battery.When using the AC power of 220V to charge to storage 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 filtering capacitor a(C2) carry out filtering, become the primary coil that galvanic current source is input to high frequency transformer (T), by dropping resistor (R4), undertaken after step-down simultaneously, again by filtering capacitor b(C3) and voltage stabilizing didoe (V1) carry out filtering and voltage stabilizing, as working power (V+), offer digital integrated circuit and 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 field effect transistor (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 storage battery by rectifier diode (V7), when 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) speed that output inner receiving tube and not gate a(IC2) discharges just speeds, the duty ratio of high-frequency oscillation signal is reduced, the ON time of field effect transistor (VT1) shortens, the electric energy sensing on high frequency transformer (T) secondary coil is reduced, thereby reduce charging current, otherwise, when charging current reduces, optical coupler b(IC5) internal resistance of inner receiving tube just increases, the duty ratio of high-frequency oscillation signal is increased, and the ON time of field effect transistor (VT1) increases, and the electric energy sensing on high frequency transformer (T) secondary coil is increased, thereby increase charging current, automatic adjusting by current regulating circuit, is controlled at charging current in suitable scope, and makes charging current constant.When using DC power supply to charge to storage battery, the positive pole of DC power supply 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 power supply 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 storage battery, when the voltage of charge power supply is when being recharged the voltage of 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 storage battery, at this moment, current regulating circuit can be controlled at charging current in suitable scope and make charging current constant equally.
During concrete enforcement: level pressure diode a(V8) use the voltage-stabiliser tube of 6V, level pressure diode a(V8) the fixed 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 fixed 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 storage battery of different voltages is charged, band switch (Q) is switched on corresponding charging gear, when storage battery full charge, just there is electric current by corresponding level pressure diode, to be input to the base stage of triode (VT2), 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 does not have signal output, field effect transistor (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 storage battery, change the other storage battery of charging that needs and proceed charging.
The beneficial effects of the utility model are: a kind of multifunctional charger circuit providing, make charger energy compatibility use the power supplys such as the alternating current of different voltages, direct current, solar photocell, and can charge to the storage battery of various different voltages, to meet various device and various occasion, use, reduce outfit kind or the quantity of charger, saving resource.
Embodiment
embodimentin execution mode shown in Fig. 1 and Fig. 2, multifunctional charger circuit is comprised 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), filtering capacitor a(C2), dropping resistor (R4), filtering capacitor b(C3) and voltage stabilizing didoe (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), field effect transistor (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) form, 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 consists of change over switch (K), charging output interface (X2), sample resistance (R10) and rectifier diode (V7), has two fixed contacts and a moving 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 moving contact and five fixed 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 filtering capacitor 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 filtering capacitor a(C2) negative pole be connected to ground wire, the crus secunda of dropping resistor (R4) and filtering capacitor b(C3) positive pole and the negative electrode of voltage stabilizing didoe (V1) form working power (V+) after being connected, the anodic bonding of negative pole filtering capacitor b(C3) and voltage stabilizing didoe (V1) is 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 is 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 is by driving resistance (R6) to be connected to the grid of field effect transistor (VT1), the source electrode of field effect transistor (VT1) is connected to ground wire, the drain electrode of field effect transistor (VT1) is connected to absorption capacitor b(C5) the first pin, the line end b of anode absorption diode a(V3) and high frequency transformer (T), absorption capacitor b(C5) crus secunda is 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 field effect transistor (VT1), absorption diode a(V3) negative electrode is 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 fixed 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) fixed contact being connected with line end c forms the gear that boosts, change over switch (K) fixed contact being connected with line end b forms step-down gear, the moving 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 rectifier diode (V7), the negative electrode of rectifier 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 fixed contacts of band switch (Q), the moving contact of band switch (Q) is connected to the base stage of triode (VT2) by biasing resistor (R12), the collector electrode of triode (VT2) is by current-limiting resistance b(R9) be connected to charging output interface (X2) anode, the emitter of triode (VT2) is connected to optical coupler a(IC4) the first pin, optical coupler a(IC4) crus secunda is connected to the negative terminal of charging output interface (X2) by buzzer (Y), optical coupler a(IC4) tripod is connected to working power (V+), optical coupler a(IC4) the 4th pin is connected to not gate b(IC3) input, in current regulating circuit, current-limiting resistance c(R11) crus secunda is connected to the crus secunda of sample resistance (R10), current-limiting resistance c(R11) the first pin is connected to optical coupler b(IC5) the first pin, optical coupler b(IC5) crus secunda is connected to the first pin of sample resistance (R10), optical coupler b(IC5) tripod is 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 light diode (V6), current-limiting resistance a(R8) the first pin is connected to the line end c of high frequency transformer (T), current-limiting resistance a(R8) crus secunda is connected to the anode of protection diode (V5), the negative electrode of protection diode (V5) is connected to the anode of indicator light diode (V6), the negative electrode of indicator light diode (V6) is connected to the line end d of high frequency transformer (T), when high frequency transformer (T) secondary has induced voltage, indicator light diode (V6) is lit, not gate a(IC2) and not gate b(IC3) share a digital integrated circuit with six not gates, four unnecessary not gates are parallel to not gate b(IC3) on, the earth terminal of digital integrated circuit is connected to ground wire, and the power end of digital integrated circuit is connected to working power (V+).
The power supplys such as the alternating current of the different voltages of the compatible use of the present embodiment energy, direct current, solar photocell charge to the storage battery of equipment or standby battery.When using the AC power of 220V to charge to storage 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 filtering capacitor a(C2) carry out filtering, become the primary coil that galvanic current source is input to high frequency transformer (T), by dropping resistor (R4), undertaken after step-down simultaneously, again by filtering capacitor b(C3) and voltage stabilizing didoe (V1) carry out filtering and voltage stabilizing, as working power (V+), offer digital integrated circuit and 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 field effect transistor (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 storage battery by rectifier diode (V7), when 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) speed that output inner receiving tube and not gate a(IC2) discharges just speeds, the duty ratio of high-frequency oscillation signal is reduced, the ON time of field effect transistor (VT1) shortens, the electric energy sensing on high frequency transformer (T) secondary coil is reduced, thereby reduce charging current, otherwise, when charging current reduces, optical coupler b(IC5) internal resistance of inner receiving tube just increases, the duty ratio of high-frequency oscillation signal is increased, and the ON time of field effect transistor (VT1) increases, and the electric energy sensing on high frequency transformer (T) secondary coil is increased, thereby increase charging current, automatic adjusting by current regulating circuit, is controlled at charging current in suitable scope, and makes charging current constant.When using DC power supply to charge to storage battery, the positive pole of DC power supply 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 power supply 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 storage battery, when the voltage of charge power supply is when being recharged the voltage of 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 storage 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 fixed 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 fixed 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 storage battery of different voltages is charged, band switch (Q) is switched on corresponding charging gear, when storage battery full charge, there is electric current by corresponding level pressure diode, to be input to the base stage of triode (VT2), 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 does not have signal output, field effect transistor (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 storage battery, change the other storage battery of charging that needs and proceed charging.
Accompanying drawing explanation
Fig. 1 is the block diagram of a kind of multifunctional charger circuit of the present utility model.
Fig. 2 is a kind of multifunctional charger circuit diagram of the present utility model.
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. filtering capacitor a, C3. filtering capacitor b, C4. absorption capacitor a, C5. absorption capacitor b, V1. voltage stabilizing didoe, V2. isolating diode, V3. absorption diode a, V4. absorption diode b, V5. protect diode, V6. indicator light diode, V7. rectifier 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. field effect transistor, 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.
Claims (7)
1. a multifunctional charger circuit, it is characterized in that charger circuit is comprised 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), filtering capacitor a(C2), dropping resistor (R4), filtering capacitor b(C3) and voltage stabilizing didoe (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), field effect transistor (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 consists of change over switch (K), charging output interface (X2), sample resistance (R10) and rectifier diode (V7), has two fixed contacts and a moving 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 moving contact and five fixed 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 filtering capacitor 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 filtering capacitor a(C2) negative pole be connected to ground wire, the crus secunda of dropping resistor (R4) and filtering capacitor b(C3) positive pole and the negative electrode of voltage stabilizing didoe (V1) form working power (V+) after being connected, the anodic bonding of negative pole filtering capacitor b(C3) and voltage stabilizing didoe (V1) is 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 is 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 is by driving resistance (R6) to be connected to the grid of field effect transistor (VT1), the source electrode of field effect transistor (VT1) is connected to ground wire, the drain electrode of field effect transistor (VT1) is connected to the line end b of high frequency transformer (T),
In output circuit, two fixed 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) fixed contact being connected with line end c forms the gear that boosts, change over switch (K) fixed contact being connected with line end b forms step-down gear, the moving 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 rectifier diode (V7), the negative electrode of rectifier 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 fixed contacts of band switch (Q), the moving contact of band switch (Q) is connected to the base stage of triode (VT2) by biasing resistor (R12), the collector electrode of triode (VT2) is by current-limiting resistance b(R9) be connected to charging output interface (X2) anode, the emitter of triode (VT2) is connected to optical coupler a(IC4) the first pin, optical coupler a(IC4) crus secunda is connected to the negative terminal of charging output interface (X2), optical coupler a(IC4) tripod is connected to working power (V+), optical coupler a(IC4) the 4th pin is connected to not gate b(IC3) input,
In current regulating circuit, current-limiting resistance c(R11) crus secunda is connected to the crus secunda of sample resistance (R10), current-limiting resistance c(R11) the first pin is connected to optical coupler b(IC5) the first pin, optical coupler b(IC5) crus secunda is connected to the first pin of sample resistance (R10), optical coupler b(IC5) tripod is 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 is 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 is connected to the drain electrode of field effect transistor (VT1), absorption capacitor b(C5) crus secunda is 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 field effect transistor (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 light diode (V6), current-limiting resistance a(R8) the first pin is connected to the line end d of high frequency transformer (T), current-limiting resistance a(R8) crus secunda is connected to the anode of protection diode (V5), the negative electrode of protection diode (V5) is connected to the anode of indicator light diode (V6), the negative electrode of indicator light 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) a shared digital integrated circuit with six not gates, four unnecessary not gates are parallel to not gate b(IC3) on, the earth terminal of digital integrated circuit is connected to ground wire, and the power end of digital integrated 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), while having buzzer (Y) in level pressure control circuit, optical coupler a(IC4) crus secunda is connected to the negative terminal of charging output interface (X2) by buzzer (Y).
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| CN201420411543.8U CN203967802U (en) | 2014-07-25 | 2014-07-25 | Multifunctional charger circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104092263A (en) * | 2014-07-25 | 2014-10-08 | 衢州迪升工业设计有限公司 | Multifunctional charger circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104092263A (en) * | 2014-07-25 | 2014-10-08 | 衢州迪升工业设计有限公司 | Multifunctional charger circuit |
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