CN108494078B - Storage battery charging circuit with capacity restoration function - Google Patents
Storage battery charging circuit with capacity restoration function Download PDFInfo
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- CN108494078B CN108494078B CN201810121671.1A CN201810121671A CN108494078B CN 108494078 B CN108494078 B CN 108494078B CN 201810121671 A CN201810121671 A CN 201810121671A CN 108494078 B CN108494078 B CN 108494078B
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- 238000007600 charging Methods 0.000 title claims abstract description 39
- 230000005284 excitation Effects 0.000 claims abstract description 23
- 239000003990 capacitor Substances 0.000 claims description 69
- 230000005669 field effect Effects 0.000 claims description 20
- 230000001419 dependent effect Effects 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 claims description 2
- 238000004073 vulcanization Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000010278 pulse charging Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- H02J7/085—
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4242—Regeneration of electrolyte or reactants
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/52—Removing gases inside the secondary cell, e.g. by absorption
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The storage battery charging circuit with the capacity restoration function comprises a rectification filter circuit, a PWM modulation excitation circuit, a storage battery, an output feedback protection circuit and a pulse generation circuit, wherein the rectification filter circuit is electrically connected with the PWM modulation excitation circuit, the PWM modulation excitation circuit is electrically connected with the storage battery, the storage battery is electrically connected with the output feedback protection circuit, the output feedback protection circuit is electrically connected with the pulse generation circuit, and the pulse generation circuit is electrically connected with the PWM modulation excitation circuit. The invention adopts rapid pulse charging, namely, the charging is stopped for a short time in the charging process, the air quantity in the storage battery is effectively controlled, air bubbles are eliminated, the high temperature in the storage battery during charging is reduced, and the loss of water is reduced, thereby eliminating the vulcanization phenomenon, playing a role in repairing the capacity of the storage battery, increasing the times of the storage battery capable of circularly charging, and prolonging the service life of the storage battery.
Description
Technical Field
The invention belongs to the technical field of storage battery charging, and particularly relates to a storage battery charging circuit with a capacity restoration function.
Background
The storage battery is widely applied to automobiles, motorcycles, household inverters and the like, but can be used only by being charged frequently. The conventional charging modes of the storage battery include a constant voltage mode, a constant current mode, a staged charging mode, namely constant current-constant voltage-floating charging, and the like. Although the staged charging has control on voltage and current, the lack of control measures on the gas quantity generated by charging in the storage battery easily causes the sulfuration phenomenon of the polar plate, namely, a large amount of sulfate crystals are generated on the surface of the negative electrode of the storage battery, and the crystals prevent active substances on the polar plate of the storage battery from participating in the energy conversion cycle of the storage battery, so that the internal resistance of the storage battery is increased, the capacity is reduced, the number of chargeable cycles is reduced, and the premature failure of the storage battery is finally caused.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the storage battery charging circuit with the capacity repairing function, which can eliminate the vulcanization phenomenon of the storage battery while finishing charging, repair the capacity of the storage battery and avoid the premature failure of the storage battery.
In order to achieve the above object, the present invention provides a storage battery charging circuit with a capacity restoration function, which includes a rectification filter circuit, a PWM modulation excitation circuit, a storage battery, an output feedback protection circuit and a pulse generation circuit, wherein the rectification filter circuit is electrically connected to the PWM modulation excitation circuit, the PWM modulation excitation circuit is electrically connected to the storage battery, the storage battery is electrically connected to the output feedback protection circuit, the output feedback protection circuit is electrically connected to the pulse generation circuit, and the pulse generation circuit is electrically connected to the PWM modulation excitation circuit;
the PWM modulation excitation circuit comprises resistors R2, R5 and R6, capacitors C3, C4, C5, C8, C11 and C12, diodes D3, D3 and D3, a zener diode D3, a field effect tube BG3, an inductor 3, a transformer B3 and an integrated circuit IC3, wherein the pulse generation circuit comprises resistors R3, R3 and R3, a potentiometer RP 3, a capacitor C3, a zener diode D3, triodes BG3, relays J3, J3 and normally closed contacts J3-1, J3-1 and J3-1 of the pulse generation circuit, the normally closed contacts J3-1, J3-IC 72 and feedback protection IC3 of the relay J3, and the normally closed contacts J3-1, J3 and the integrated circuit 3 and the feedback protection IC3 and the integrated circuit comprises the triodes BG 3;
the circuit comprises a resistor R2 connected between a pin 4 and a pin 8 of an integrated circuit IC1, a resistor R5 connected between a pin 6 of an integrated circuit IC1 and a gate of a field effect tube BG1, a resistor R6 connected between a pin 7 of the integrated circuit IC1 and a rectifying filter circuit, a capacitor C3 connected between a pin 4 of an integrated circuit IC1 and ground, a capacitor C4 connected between a pin 8 of an integrated circuit IC1 and ground, a capacitor C5 connected between a pin 2 and a pin 1 of the integrated circuit IC1, a capacitor C8 connected between a different name end of an input coil N2 of a transformer B2 and ground, a capacitor C11 and a capacitor C12 connected in parallel and then connected between an anode of a diode D12 and ground, a cathode of the diode D12 connected in parallel and then connected with an output coil N12 of a transformer B12, a cathode of the diode D12 connected with one end of the inductor 361 connected with the anode of the other diode D12, a cathode of the diode D12 connected with a cathode of the integrated circuit BG 12, a drain electrode of the integrated circuit BG 12 connected with a drain of the integrated circuit BG 12, a drain electrode BG 12 of the integrated circuit BG 12, a drain of the integrated circuit BG 12 connected with the integrated circuit, a drain of the integrated circuit 12 of the integrated circuit BG 12 of the integrated circuit, a drain of the integrated circuit BG 36;
resistors R27, R27 and R27 are connected in series and then connected between pins 7 and 6 of an integrated circuit IC 27, a potentiometer RP 27 is connected between a collector of a transistor BG 27 and a pin 7 of the integrated circuit IC 27, a capacitor C27 is connected between a pin 2 of the integrated circuit IC 27 and ground, the capacitor C27 is connected between a pin 1 and a pin 5 of the integrated circuit IC 27, an anode of a zener diode D27 is grounded, a cathode of the zener diode D27 is connected to a base of the transistor BG 27, an emitter of the transistor BG 27 is connected to the anode of the diode D27, a relay J27 is connected between the collector of the transistor BG 27 and the collector of the transistor BG 27, the relay J27 is connected between the collector of the transistor BG 27 and the collector of the transistor BG 27, and a contact point of a resistor BG 27-resistor J27, which is connected between the two sides of the normally-closed contacts 27, normally closed contact J2-1 of relay J2 is connected in parallel with two sides of resistor R29, normally closed contact J3-1 of relay J3 is connected in parallel with two sides of resistor R30, normally closed contact J4-1 of relay J4 is connected in parallel with two sides of resistor R31, normally closed contact J5-1 of relay J5 is connected between pin 8 of IC3 and collector of triode BG2, pins 4, 2, 6, 9 and 13 of IC2 are connected with collector of triode BG2, pins 3, 5, 10 and 12 of IC2 are connected with emitter of triode BG2, pin 11 of IC2 is grounded, pin 1 of IC3 is grounded, pin 3 of IC3 is connected with pin 2 of IC1, and pin 6 of IC3 is connected with capacitor C14;
the relay J5 is connected between the collector of the transistor BG7 and the collector of the transistor BG2, the base of the transistor BG7 is connected with the pin 1 of the integrated circuit IC4, the emitter is grounded, the pin 2 of the integrated circuit IC4 is connected with the reference voltage, and the pin 3 is connected with the anode of the diode D5.
Preferably, the type of the integrated circuit IC1 is UC3842, the type of the integrated circuit IC2 is L M324, the type of the integrated circuit IC3 is NE555, the type of the integrated circuit IC4 is L M358, the field-effect tube BG1 is an N-channel depletion type insulated gate field-effect tube, the type of the integrated circuit IC 357 is K1507, the types of the diodes D3, D4, and D5 are BY028E, the voltage regulation value of the voltage regulation diode D6 is 15V, the voltage regulation value of the voltage regulation diode D8 is 12V, the types of the transistors BG2 and BG7 are PNP tubes, the types of the transistors D880, the transistors BG3, BG4, BG5, and BG6 are NPN tubes, and the type of the transistors is 5551.
Preferably, the rectification filter circuit comprises a voltage dependent resistor R1, capacitors C1 and C2, a transformer B1, a rectifier stack UR and a fuse FU; the voltage-dependent resistor R1 and the capacitor C1 are connected in parallel at two ends of the input side of the transformer B1, the fuse FU is connected between a 220V power supply and the capacitor C1, the output end of the transformer B1 is connected with a pin 1 and a pin 2 of the rectifier stack UR, the anode of the capacitor C2 is connected with a pin 3 of the rectifier stack UR, the cathode of the capacitor C2 is connected with a pin 4 of the rectifier stack UR, the pin 4 of the rectifier stack UR is grounded, and the pin 3 is respectively connected with the resistor R6 in the PWM modulation excitation circuit and the same-name end of the input coil N1 of the transformer B2.
Further, the PWM modulation excitation circuit further comprises resistors R3, R4, R7, R8, R9, R10, R11 and R12, capacitors C6, C7, C9 and C10, diodes D1 and D2, a voltage stabilizing diode D7 and a thyristor V1; the model of the diodes D1 and D2 is FR157, the regulated voltage value of the voltage regulator diode D7 is 36V, and the model of the thyristor V1 is KGPS 408;
wherein, the resistor R3 is connected between the pin 2 of the integrated circuit IC1 and the pin 3 of the integrated circuit IC3, the resistor R4 is connected in parallel with both ends of the capacitor C5, the resistor R7 is connected between the pin 3 of the rectifier stack UR and the cathode of the diode D1, the resistor R1 is connected between the pin 3 of the integrated circuit IC1 and the source of the field effect tube BG1, the resistor R1 is connected between the source of the field effect tube BG1 and the ground, the resistor R1 is connected in series with the capacitor C1 and then connected to both ends of the output coil N1 of the transformer B1, the resistor R1 is connected between the anode of the diode D1 and the ground, the resistor R1 is connected between the gate of the thyristor V1 and the ground, the capacitor C1 is connected between the pin 3 and the pin 5 of the integrated circuit IC1, the capacitor C1 is connected between the pin 3 of the rectifier stack UR and the cathode of the diode D1, the cathode of the diode D1 is connected to the input terminal BG1 of the diode B1, the unlike the input terminal 1 of the diode BG1, the negative pole connects 7 feet of the integrated circuit IC1 and the electric capacity C8 separately, the positive pole of the diode D7 of the voltage stabilizer connects the gate pole of the thyristor V1, the negative pole connects the positive pole of the diode D5, the positive pole of the thyristor V1 connects the positive pole of the diode D5, the negative pole is grounded.
Furthermore, the pulse generating circuit also comprises resistors R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25 and R26, capacitors C13 and C14, diodes D9, D10, D11, D12, D13, D14, D15 and D16, wherein the types of the diodes D9, D10, D11, D12, D13, D14, D15 and D16 are IN 4148;
wherein, the resistor R13 is connected between the cathode of the diode D5 and the cathode of the zener diode D8, the resistor R14 is connected between the collector of the transistor BG 14 and the 2-pin of the integrated circuit IC 14, the resistor R14 is connected between the 2-pin and the 6-pin of the integrated circuit IC 14, the resistor R14 is connected between the 6-pin and the 9-pin of the integrated circuit IC 14, the resistor R14 is connected between the 9-pin and the 13-pin of the integrated circuit IC 14, the resistor R14 is connected between the 13-pin of the integrated circuit IC 14 and the ground, the resistor R14 is connected between the cathode of the diode D14 and the base of the transistor BG 14, the emitter of the resistor R14 is connected between the emitter of the transistor BG 14 and the ground, the emitter of the resistor R14 is connected between the emitter of the transistor BG 14 and the emitter of the transistor BG 14, a resistor R26 is connected between the emitter of the transistor BG6 and the ground, a capacitor C13 is connected in parallel to two sides of a zener diode D8, a capacitor C14 is connected between the pin 2 of the integrated circuit IC3 and the ground, the anode of the diode D9 is connected to the pin 1 of the integrated circuit IC 9, the anode of the diode D9 is connected to the pin 7 of the integrated circuit IC 9, the anode of the diode D9 is connected to the pin 8 of the integrated circuit IC 9, the anode of the diode D9 is connected to the pin 14 of the integrated circuit IC 9, the diode D9 is connected in parallel to two sides of the relay J9, the anode of the diode D9 is connected to the collector of the transistor BG 9, the cathode of the diode D9 is connected in parallel to the collector of the transistor BG 9, the anode of the diode D9 is connected in parallel to two sides of the transistor BG 9, the cathode of the collector of the diode D9 is connected to two sides of the transistor BG 9, the collector of the transistor BG 9 is connected in parallel to the two sides of the transistor BG 9, the anode of the diode D16 is connected with the collector of the triode BG6, the cathode is connected with the collector of the triode BG2, and the pin 6 of the integrated circuit IC3 is connected with the capacitor C14.
Further, the output feedback protection circuit further comprises resistors R32 and R33, diodes D17 and D18, wherein the models of the diodes D17 and D18 are IN 4148;
the resistor R32 is connected between the base of the triode BG7 and the negative electrode of the diode D17, the resistor R33 is connected between the emitter of the triode BG7 and the ground, the positive electrode of the diode D17 is connected with the pin 1 of the integrated circuit IC4, the diode D18 is connected with the two sides of the relay J5 in parallel, the positive electrode of the diode D18 is connected with the collector of the triode BG7, and the negative electrode of the diode D2 is connected with the collector of the triode BG 2.
Compared with the prior art, the invention adopts rapid pulse charging, namely, the short stop of charging is carried out in the charging process, the air quantity in the storage battery is effectively controlled, air bubbles are eliminated, the high temperature in the storage battery during charging is reduced, and the loss of water is reduced, so that the vulcanization phenomenon is eliminated, the capacity of the storage battery is repaired, the number of times of the storage battery for circularly charging is increased, in addition, the invention can also automatically adjust the stop time along with the charging of the storage battery, and the service life of the storage battery is prolonged. The invention has simple structure, easy manufacture and low manufacture cost.
Drawings
FIG. 1 is a schematic block diagram of the present invention;
fig. 2 is a schematic diagram of the circuit of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, a battery charging circuit with a capacity restoration function includes a rectifying and filtering circuit, a PWM modulation excitation circuit, a battery, an output feedback protection circuit, and a pulse generation circuit, where the rectifying and filtering circuit is electrically connected to the PWM modulation excitation circuit, the PWM modulation excitation circuit is electrically connected to the battery, the battery is electrically connected to the output feedback protection circuit, the output feedback protection circuit is electrically connected to the pulse generation circuit, and the pulse generation circuit is electrically connected to the PWM modulation excitation circuit;
as shown in FIG. 2, the rectifying and filtering circuit comprises a piezoresistor R1, capacitors C1 and C2, a transformer B2, a rectifier stack UR and a fuse FU, the piezoresistor R2 forms an overvoltage protection circuit, an input end of the transformer B2 and a shunt capacitor C2 form a conjugate anti-interference circuit, the PWM modulation excitation circuit comprises resistors R2, capacitors C2, diodes D2, voltage stabilizing diodes D2, field effect tubes BG2, V2, inductance 2, transformer B2, IC2, BG-BG 72, BG-BG 2, BG-2, a constant-D2, a constant-voltage-2, BG-2, a constant-D-2, a transistor, a BG-2, a constant-D-2, a transistor, a BG-D, a2, a constant-D, a transistor, a2, a transistor, a constant-D, a transistor, a2, a transistor R2, a BG-D, a2, a transistor, a BG-2, a BG, a transistor, a2, a transistor, a2, a BG-D, a2, a BG-2, a BG, a transistor, a2, a transistor, a2, a transistor, a2, a transistor.
The model of the integrated circuit IC1 is UC3842, the model of the integrated circuit IC2 is L M324, the model of the integrated circuit IC3 is NE555, and the model of the integrated circuit IC4 is L M358.
The field effect tube BG1 is an N-channel depletion type insulated gate field effect tube with the model number of K1507; the model of the thyristor V1 is KGPS408, the transistors BG2 and BG7 are PNP tube type and D880, and the transistors BG3, BG4, BG5 and BG6 are NPN tube type and 5551.
The types of the diodes D1 and D2 are FR157, the types of the diodes D3, D4 and D5 are BY028E, the types of the diodes D9, D10, D11, D12, D13, D14, D15, D16, D17 and D18 are IN4148, the voltage regulation value of the voltage regulation diode D6 is 15V, the voltage regulation value of the voltage regulation diode D6D7 is 36V, and the voltage regulation value of the voltage regulation diode D8 is 12V.
The voltage dependent resistor R1 and the capacitor C1 are connected in parallel at two ends of the input side of the transformer B1, the fuse FU is connected between a 220V power supply and the capacitor C1, the output end of the transformer B1 is connected with pins 1 and 2 of the rectifier stack UR, the anode of the capacitor C2 is connected with pin 3 of the rectifier stack UR, the cathode of the capacitor C2 is connected with pin 4 of the rectifier stack UR, and pin 4 of the rectifier stack UR is grounded;
the resistor R is connected between the 4 pins and 8 pins of the integrated circuit IC, the resistor R is connected between the 2 pins of the integrated circuit IC and the 3 pins of the integrated circuit IC, the resistor R and the capacitor C are connected between the 2 pins and 1 pins of the integrated circuit IC after being connected in parallel, the resistor R is connected between the 6 pins of the integrated circuit IC and the grid electrode of the field-effect tube BG, the resistor R is connected between the 7 pins of the integrated circuit IC and the 3 pins of the rectifier stack UR, the resistor R is connected between the 3 pins of the rectifier stack UR and the negative electrode of the diode D, the resistor R is connected between the 3 pins of the integrated circuit IC and the source electrode of the field-effect tube BG, the resistor R is connected between the source electrode of the field-effect tube BG and the ground, the resistor R and the capacitor C are connected between the output coil N ends of the transformer B after being connected in series, the resistor R is connected between the positive electrode of the diode D and the ground, the resistor R is connected between the gate electrode of the thyristor V and the ground, the capacitor C is connected between the 4 pins of the integrated circuit IC and the ground, the capacitor C is connected between the positive electrode of the rectifier stack BG, the drain electrode of the rectifier stack BG, the capacitor C is connected between the positive electrode of the rectifier stack BG, the rectifier stack, the drain electrode of the rectifier stack, the diode D and the diode D of the rectifier stack, the diode D of the diode C is connected between the rectifier stack, the diode BG, the diode C and the diode C of the diode BG, the diode C is connected between the diode C, the diode D, the drain electrode of the diode D, the diode D of the diode D, the diode D of the diode D, the diode D is connected between the diode D, the.
A resistor R13 is connected between the cathode of the diode D5 and the cathode of the zener diode D8, a resistor R14 is connected between the collector of the transistor BG 14 and the 2-pin of the integrated circuit IC 14, a resistor R14 is connected between the 2-pin and the 6-pin of the integrated circuit IC 14, a resistor R14 is connected between the 6-pin and the 9-pin of the integrated circuit IC 14, a resistor R14 is connected between the 9-pin and the 13-pin of the integrated circuit IC 14, a resistor R14 is connected between the 13-pin of the integrated circuit IC 14 and ground, a resistor R14 is connected between the cathode of the diode D14 and the base of the transistor BG 14, a resistor R14 is connected between the emitter of the transistor BG 14 and the ground, and an emitter of the transistor BG 14 are connected between the transistor BG 14 and the emitter of the transistor BG 14, a resistor R26 is connected between the emitter of a transistor BG6 and the ground, resistors R27, R28, and R28 are connected in series and then connected between the 7 pin and the 6 pin of an integrated circuit IC 28, a potentiometer RP 28 is connected between the collector of the transistor BG 28 and the 7 pin of the integrated circuit IC 28, a capacitor C28 is connected in parallel to both sides of a zener diode D28, the capacitor C28 is connected between the 2 pin of the integrated circuit IC 28 and the ground, the capacitor C28 is connected between the 1 pin and the 5 pin of the integrated circuit IC 28, the anode of the zener diode D28 is connected to the ground, the cathode of the zener diode D28 is connected to the base of the transistor BG 28, the anode of the diode D28 is connected to the 1 pin of the integrated circuit IC 28, the anode of the diode D28 is connected to the 7 pin of the integrated circuit IC 28, the anode of the diode D28 is connected to the 8 pin of the integrated circuit IC 28, the anode of the diode D28 is connected to the collector of the transistor BG 28, and the collector of the diode BG 28 is connected to the anode of, the anode of the diode D is connected with the collector of the triode BG, the cathode of the diode D is connected with the collector of the triode BG, the emitter of the triode BG is connected with the anode of the diode D, the relay J is connected with the two sides of the diode D in parallel, the normally closed contact J-1 of the relay J is connected with the two sides of the resistor R, a normally closed contact J5-1 of the relay J5 is connected between an 8 pin of the integrated circuit IC3 and a collector of the triode BG2, 3 pins, 5 pins, 10 pins and 12 pins of the integrated circuit IC2 are connected with an emitter of the triode BG2, 4 pins of the integrated circuit IC2 are connected with a collector of the triode BG2, 11 pins of the integrated circuit IC2 are grounded, 1 pin of the integrated circuit IC3 is grounded, 2 pins and 6 pins of the integrated circuit IC3 are connected with a capacitor C14, 3 pins of the integrated circuit IC3 are connected with a resistor R3, and 4 pins of the integrated circuit IC3 are connected with a collector of the triode BG 2;
the resistor R32 is connected between the base of the transistor BG7 and the cathode of the diode D17, the resistor R33 is connected between the emitter of the transistor BG7 and the ground, the anode of the diode D17 is connected with the pin 1 of the integrated circuit IC4, the anode of the diode D18 is connected with the collector of the transistor BG7, the cathode of the diode D18 is connected with the collector of the transistor BG2, the relay J5 is connected with the two sides of the diode D18 in parallel, the pin 2 of the integrated circuit IC4 is connected with the reference voltage, and the pin 3 of the integrated circuit IC4 is connected with the anode of the diode D5.
The method comprises the steps that the input commercial power obtains about 300V direct-current high voltage after bridge rectification and filtering, one path of the voltage is subjected to current limiting through a resistor R6 and flows to a capacitor C8 for charging, when the charging voltage is larger than 16V, an integrated circuit IC1 starts to work, a positive trigger pulse is output by a pin 6 of the integrated circuit IC1 to enable a field-effect tube BG1 to be conducted, an input coil N1 in a transformer B2 converts electric energy into magnetic energy, then a negative pulse is output by a pin 6 of the integrated circuit IC1 to enable the field-effect tube BG1 to be turned off, the input coil N1 releases the electric energy through an output coil N3. Meanwhile, the input coil N2 in the transformer B2 generates a feedback voltage, which is rectified, filtered and supplied to pin 7 of the IC 1.
The pulse generating circuit takes an integrated circuit IC3 as a core, a pin 3 of an integrated circuit IC3 is connected with a pin 2 of an integrated circuit IC1 through a resistor R3, and when the pulse generating circuit outputs a charging stop signal, the charging stop time is 0.7R27C14The signal directly controls the pulse width inside the integrated circuit IC1 to quickly reduce the output voltage, and the voltage of the storage battery cannot be reversely poured due to the existence of the reverse connection prevention diode D5 in the circuit, namely the storage battery is in a charging stop state at a certain moment.
When the storage battery is charged at the beginning, the voltage of the storage battery is not very high, the voltage of the storage battery is continuously increased along with the continuous charging, when the sampling voltage reaches a certain threshold value, the voltage comparator A1 in the integrated circuit IC2 is turned over, the pin 1 of the integrated circuit IC2 outputs high level, the triode BG3 is switched on, the relay J1 is attracted, the normally closed contact J1-1 is switched off, and the pulse signal charging stopping time is 0.7R27C14Increased to 0.7 (R)27+R28)C14If the output voltage of the integrated circuit IC2 is further increased, when the second threshold value is reached, the voltage comparator A2 in the integrated circuit IC2 is also overturned, the pin 7 of the integrated circuit IC2 also outputs high level, the triode BG4 is switched on, the relay J2 is closed, the normally closed contact J2-1 is switched off, and the pulse signal charging stopping time is increased to 0.7(R is increased to be equal to the first threshold value)27+R28+R29)C14Similarly, when the output voltage of the integrated circuit IC2 increases again, the voltage comparators A3 and a4 in the integrated circuit IC2 both turn over, the pins 8 and 14 of the integrated circuit IC2 both output high levels, the triodes BG5 and BG6 are both turned on, the relays J3 and J4 attract each other, the normally closed contacts J3-1 and J4-1 are turned off, the charging stop time of the pulse signal is further increased, and the longer the charging stop time of the pulse signal is, the stronger the battery vulcanization eliminating capability is.
When the output voltage of the storage battery rises to a certain degree, the integrated circuit IC4 outputs high level, the triode BG7 is conducted, the relay J5 is attracted, the normally closed contact J5-1 is disconnected, the pulse generating circuit does not work, the positive pulse is ended, the charger is in a trickle state, the storage battery is ensured to be really saturated, and the service life of the storage battery is prolonged.
Claims (6)
1. The storage battery charging circuit with the capacity restoration function is characterized by comprising a rectification filter circuit, a PWM (pulse-width modulation) excitation circuit, a storage battery, an output feedback protection circuit and a pulse generation circuit, wherein the rectification filter circuit is electrically connected with the PWM excitation circuit, the PWM excitation circuit is electrically connected with the storage battery, the storage battery is electrically connected with the output feedback protection circuit, the output feedback protection circuit is electrically connected with the pulse generation circuit, and the pulse generation circuit is electrically connected with the PWM excitation circuit;
the PWM modulation excitation circuit comprises resistors R2, R5 and R6, capacitors C3, C4, C5, C8, C11 and C11, diodes D11, D11 and D11, a zener diode D11, a field effect tube BG 11, an inductor 11, a transformer B11 and an integrated circuit IC 11, wherein the pulse generation circuit comprises resistors R11, R11 and R11, a potentiometer RP 11, capacitors C11 and C11, a zener diode D11, a triode BG 11, a BG 11, relays J11, J11 and J11, normally closed contacts J11-1, J11-1 and J11-1, normally closed contacts J11-1 and J11 of the relay J11, the integrated circuit IC 72 and a feedback protection circuit IC 11, and the integrated circuit 11 comprises a triode BG 11, a feedback protection IC 11 and a feedback protection IC 11;
the integrated circuit comprises a resistor R, a capacitor C, a capacitor D, a diode D and a diode D, wherein the resistor R is connected between a pin 4 and a pin 8 of the integrated circuit IC, the resistor R is connected between a pin 6 of the integrated circuit IC and a grid electrode of a field effect tube BG, the resistor R is connected between a pin 7 of the integrated circuit IC and a rectifying filter circuit, the capacitor C is connected between a pin 4 of the integrated circuit IC and the ground, the capacitor C is connected between a pin 8 of the integrated circuit IC and the ground, the capacitor C is connected between a pin 2 and a pin 1 of the integrated circuit IC, the capacitor C is connected between a different name end of an input coil N of the transformer B and the ground, the capacitor C and the capacitor C are connected in parallel and then connected between an anode of the diode D and the ground;
resistors R27, R27 and R27 are connected in series and then connected between pins 7 and 6 of an integrated circuit IC 27, a potentiometer RP 27 is connected between a collector of a transistor BG 27 and a pin 7 of the integrated circuit IC 27, a capacitor C27 is connected between a pin 2 of the integrated circuit IC 27 and ground, the capacitor C27 is connected between a pin 1 and a pin 5 of the integrated circuit IC 27, an anode of a zener diode D27 is grounded, a cathode of the zener diode D27 is connected to a base of the transistor BG 27, an emitter of the transistor BG 27 is connected to the anode of the diode D27, a relay J27 is connected between the collector of the transistor BG 27 and the collector of the transistor BG 27, the relay J27 is connected between the collector of the transistor BG 27 and the collector of the transistor BG 27, and a contact point of a resistor BG 27-resistor J27, which is connected between the two sides of the normally-closed contacts 27, normally closed contact J2-1 of relay J2 is connected in parallel with two sides of resistor R29, normally closed contact J3-1 of relay J3 is connected in parallel with two sides of resistor R30, normally closed contact J4-1 of relay J4 is connected in parallel with two sides of resistor R31, normally closed contact J5-1 of relay J5 is connected between pin 8 of IC3 and collector of triode BG2, pins 4, 2, 6, 9 and 13 of IC2 are connected with collector of triode BG2, pins 3, 5, 10 and 12 of IC2 are connected with emitter of triode BG2, pin 11 of IC2 is grounded, pin 1 of IC3 is grounded, pin 3 of IC3 is connected with pin 2 of IC1, and pin 6 of IC3 is connected with capacitor C14;
the relay J5 is connected between the collector of the transistor BG7 and the collector of the transistor BG2, the base of the transistor BG7 is connected with the pin 1 of the integrated circuit IC4, the emitter is grounded, the pin 2 of the integrated circuit IC4 is connected with the reference voltage, and the pin 3 is connected with the anode of the diode D5.
2. The storage battery charging circuit with the capacity restoration function according to claim 1, wherein the integrated circuit IC1 is UC3842, the integrated circuit IC2 is L M324, the integrated circuit IC3 is NE555, the integrated circuit IC4 is L M358, the field effect tube BG1 is an N-channel depletion type insulated gate field effect tube K1507, the diodes D3, D4 and D5 are BY028E, the voltage regulation value of the voltage regulation diode D6 is 15V, the voltage regulation value of the voltage regulation diode D8 is 12V, the triodes BG2 and BG7 are PNP tube type and D880, the triodes BG3, BG4, BG5 and BG6 are NPN tube type and BG 5551.
3. The battery charging circuit with capacity restoration function according to claim 1 or 2, wherein the rectifier filter circuit comprises a voltage dependent resistor R1, capacitors C1 and C2, a transformer B1, a rectifier stack UR, a fuse FU; the voltage-dependent resistor R1 and the capacitor C1 are connected in parallel at two ends of the input side of the transformer B1, the fuse FU is connected between a 220V power supply and the capacitor C1, the output end of the transformer B1 is connected with a pin 1 and a pin 2 of the rectifier stack UR, the anode of the capacitor C2 is connected with a pin 3 of the rectifier stack UR, the cathode of the capacitor C2 is connected with a pin 4 of the rectifier stack UR, the pin 4 of the rectifier stack UR is grounded, and the pin 3 is respectively connected with the resistor R6 in the PWM modulation excitation circuit and the same-name end of the input coil N1 of the transformer B2.
4. The battery charging circuit with the capacity restoration function according to claim 3, wherein the PWM modulation excitation circuit further comprises resistors R3, R4, R7, R8, R9, R10, R11, R12, capacitors C6, C7, C9, C10, diodes D1, D2, a zener diode D7 and a thyristor V1; the model of the diodes D1 and D2 is FR157, the regulated voltage value of the voltage regulator diode D7 is 36V, and the model of the thyristor V1 is KGPS 408;
wherein, the resistor R3 is connected between the pin 2 of the integrated circuit IC1 and the pin 3 of the integrated circuit IC3, the resistor R4 is connected in parallel with both ends of the capacitor C5, the resistor R7 is connected between the pin 3 of the rectifier stack UR and the cathode of the diode D1, the resistor R1 is connected between the pin 3 of the integrated circuit IC1 and the source of the field effect tube BG1, the resistor R1 is connected between the source of the field effect tube BG1 and the ground, the resistor R1 is connected in series with the capacitor C1 and then connected to both ends of the output coil N1 of the transformer B1, the resistor R1 is connected between the anode of the diode D1 and the ground, the resistor R1 is connected between the gate of the thyristor V1 and the ground, the capacitor C1 is connected between the pin 3 and the pin 5 of the integrated circuit IC1, the capacitor C1 is connected between the pin 3 of the rectifier stack UR and the cathode of the diode D1, the cathode of the diode D1 is connected to the input terminal BG1 of the diode B1, the unlike the input terminal 1 of the diode BG1, the negative pole connects 7 feet of the integrated circuit IC1 and the electric capacity C8 separately, the positive pole of the diode D7 of the voltage stabilizer connects the gate pole of the thyristor V1, the negative pole connects the positive pole of the diode D5, the positive pole of the thyristor V1 connects the positive pole of the diode D5, the negative pole is grounded.
5. The battery charging circuit with the capacity repairing function according to claim 4, wherein the pulse generating circuit further comprises resistors R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, capacitors C13, C14, diodes D9, D10, D11, D12, D13, D14, D15, D16, the diodes D9, D10, D11, D12, D13, D14, D15, D16 with model number IN 4148;
wherein, the resistor R13 is connected between the cathode of the diode D5 and the cathode of the zener diode D8, the resistor R14 is connected between the collector of the transistor BG 14 and the 2-pin of the integrated circuit IC 14, the resistor R14 is connected between the 2-pin and the 6-pin of the integrated circuit IC 14, the resistor R14 is connected between the 6-pin and the 9-pin of the integrated circuit IC 14, the resistor R14 is connected between the 9-pin and the 13-pin of the integrated circuit IC 14, the resistor R14 is connected between the 13-pin of the integrated circuit IC 14 and the ground, the resistor R14 is connected between the cathode of the diode D14 and the base of the transistor BG 14, the emitter of the resistor R14 is connected between the emitter of the transistor BG 14 and the ground, the emitter of the resistor R14 is connected between the emitter of the transistor BG 14 and the emitter of the transistor BG 14, a resistor R26 is connected between the emitter of the transistor BG6 and the ground, a capacitor C13 is connected in parallel to two sides of a zener diode D8, a capacitor C14 is connected between the pin 2 of the integrated circuit IC3 and the ground, the anode of the diode D9 is connected to the pin 1 of the integrated circuit IC 9, the anode of the diode D9 is connected to the pin 7 of the integrated circuit IC 9, the anode of the diode D9 is connected to the pin 8 of the integrated circuit IC 9, the anode of the diode D9 is connected to the pin 14 of the integrated circuit IC 9, the diode D9 is connected in parallel to two sides of the relay J9, the anode of the diode D9 is connected to the collector of the transistor BG 9, the cathode of the diode D9 is connected in parallel to the collector of the transistor BG 9, the anode of the diode D9 is connected in parallel to two sides of the transistor BG 9, the cathode of the collector of the diode D9 is connected to two sides of the transistor BG 9, the collector of the transistor BG 9 is connected in parallel to the two sides of the transistor BG 9, the anode of the diode D16 is connected with the collector of the triode BG6, the cathode is connected with the collector of the triode BG2, and the pin 6 of the integrated circuit IC3 is connected with the capacitor C14.
6. The battery charging circuit with the capacity repairing function as claimed IN claim 5, wherein the output feedback protection circuit further comprises resistors R32, R33 and diodes D17, D18, the types of the diodes D17, D18 are IN 4148;
the resistor R32 is connected between the base of the triode BG7 and the negative electrode of the diode D17, the resistor R33 is connected between the emitter of the triode BG7 and the ground, the positive electrode of the diode D17 is connected with the pin 1 of the integrated circuit IC4, the diode D18 is connected with the two sides of the relay J5 in parallel, the positive electrode of the diode D18 is connected with the collector of the triode BG7, and the negative electrode of the diode D2 is connected with the collector of the triode BG 2.
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| CN201810121671.1A CN108494078B (en) | 2018-02-07 | 2018-02-07 | Storage battery charging circuit with capacity restoration function |
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