CN208423907U - A kind of effective safe charging circuit for inhibiting peak voltage - Google Patents

A kind of effective safe charging circuit for inhibiting peak voltage Download PDF

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Publication number
CN208423907U
CN208423907U CN201820565581.7U CN201820565581U CN208423907U CN 208423907 U CN208423907 U CN 208423907U CN 201820565581 U CN201820565581 U CN 201820565581U CN 208423907 U CN208423907 U CN 208423907U
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China
Prior art keywords
resistance
chip
diode
pin
voltage
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CN201820565581.7U
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Chinese (zh)
Inventor
孙涛
刘华
张萍
熊莉
杨俊涛
曾麟钧
程丽
王丹
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State Grid Corp of China SGCC
Shiyan Power Supply Co of State Grid Hubei Electric Power Co Ltd
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State Grid Corp of China SGCC
Shiyan Power Supply Co of State Grid Hubei Electric Power Co Ltd
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Priority to CN201820565581.7U priority Critical patent/CN208423907U/en
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Abstract

The utility model discloses a kind of safe charging circuit for effectively inhibiting peak voltage, including capacitance-resistance voltage reduction circuit, rectifier bridge T, transient voltage suppressor diode DZ and chip IC 1;The capacitance-resistance voltage reduction circuit includes resistance R11 and capacitor C2, the resistance R11 is connected in parallel rear one end with capacitor C2 and connects 220V alternating current, the port 1 of other end connection rectifier bridge T, the utility model effectively inhibits the safe charging circuit of peak voltage to inhibit peak voltage using professional electronics element, effective protection circuit, and use three terminal regulator constant charge voltage, and tally control is carried out to charging process by programmable oscillation delay circuit, realize charging large current charge early period, the purpose of charging later period trickle charge, the case where effectively avoiding overcharge, electric energy can also be saved.

Description

A kind of effective safe charging circuit for inhibiting peak voltage
Technical field
The utility model relates to a kind of charger, specifically a kind of effective safe charging circuit for inhibiting peak voltage.
Background technique
Since lead-acid accumulator is invented 150 years, it occupies always absolute advantage in chemical energy battery.This is because Its is cheap, using it is reliable, be suitable for heavy-current discharge, adapt to the advantages that ambient temperature range is wide.Lead-acid accumulator is being handed over The fields such as logical, communication, military affairs, navigation, aviation, photovoltaic power generation suffer from important function.Especially non-maintaining sealed lead acid storage battery The research and development success in pond, the range for applying lead-acid accumulator are more extensive.Structure is complicated, function mostly for existing battery charger Can be single, it is be easy to cause the overshoot of battery, reduces its service life.
Summary of the invention
Effective safety for inhibiting peak voltage simple, easy to use that the purpose of this utility model is to provide a kind of structures Charging circuit, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions:
A kind of effective safe charging circuit for inhibiting peak voltage, including capacitance-resistance voltage reduction circuit, rectifier bridge T, transient voltage Inhibit diode DZ and chip IC 1;The capacitance-resistance voltage reduction circuit includes resistance R11 and capacitor C2, the resistance R11 and capacitor C2 It is connected in parallel rear one end connection 220V alternating current, the other end connects the port 1 of rectifier bridge T, and the port 2 of rectifier bridge T is separately connected electricity Hinder one end of R1, transient voltage suppressor diode DZ, the anode of diode D2 and chip IC 1 pin 3, the other end of resistance R1 The cathode and resistance R2 of diode D1 are connected, the other end of resistance R2 connects the pin 13 of the pin 12 of chip IC 2, chip IC 2 With the pin 14 of chip IC 2, anode connection resistance R3, the emitter of triode V1, the transient voltage of diode D1 inhibits two poles The other end of pipe DZ, the port 4 of rectifier bridge T, the cathode of battery E, the pin 5 of chip IC 2, chip IC 2 pin 6, chip The pin 10 of the pin 7 of IC2, the pin 9 of chip IC 2 and chip IC 2, the collector connection resistance R3's of triode V1 is another End, resistance R4, the anode of diode D5 and chip IC 1 pin 1, the base stage of triode V1 connects resistance R5, and resistance R5's is another One end connects the pin 8 of chip IC 2, and the pin 3 of chip IC 2 connects resistance R10, and the other end of resistance R10 connects potentiometer RP1 A fixing end, another fixing end of potentiometer RP1 connects resistance R9, and the other end connection chip IC 2 of resistance R9 is drawn Foot 1, the sliding end of another point connection potentiometer RP1 of capacitor C1, the pin 2 of chip IC 2 connect resistance R4, resistance R7 and resistance The anode of the other end connection diode D3 of R8, resistance R7, the cathode connection cathode of diode D4 of diode D3, resistance R6 and The anode of battery E, the anode of the other end connection diode D4 of resistance R7 and the cathode of diode D5.
As a preferred embodiment of the present invention: the model LM317 of the chip IC 1, the model of chip IC 2 CD4541BE。
As a preferred embodiment of the present invention: the diode D3 and diode D4 is light emitting diode.
As a preferred embodiment of the present invention: the model SMAJ5.0A of the transient voltage suppressor diode DZ.
Compared with prior art, the utility model has the beneficial effects that the utility model effectively inhibits the peace of peak voltage Full charging circuit inhibits peak voltage, effective protection circuit using professional electronics element, and fills using three terminal regulator is constant Piezoelectric voltage, and tally control is carried out to charging process by programmable oscillation delay circuit, realize charging high current early period Charging, the purpose for later period trickle charge of charging, the case where effectively avoiding overcharge, moreover it is possible to save electric energy.
Detailed description of the invention
Fig. 1 is the circuit diagram for effectively inhibiting the safe charging circuit of peak voltage.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, a kind of safe charging circuit for effectively inhibiting peak voltage, including capacitance-resistance voltage reduction circuit, rectifier bridge T, transient voltage suppressor diode DZ and chip IC 1;The capacitance-resistance voltage reduction circuit includes resistance R11 and capacitor C2, the resistance R11 is connected in parallel rear one end with capacitor C2 and connects 220V alternating current, and the other end connects the port 1 of rectifier bridge T, the port 2 of rectifier bridge T Be separately connected one end of resistance R1, transient voltage suppressor diode DZ, the anode of diode D2 and chip IC 1 pin 3, resistance The cathode and resistance R2 of the other end connection diode D1 of R1, pin 12, the chip of the other end connection chip IC 2 of resistance R2 The pin 13 of IC2 and the pin 14 of chip IC 2, anode connection resistance R3, the emitter of triode V1, the transient state electricity of diode D1 Constrain the other end of diode DZ processed, the port 4 of rectifier bridge T, the cathode of battery E, the pin 5 of chip IC 2, chip IC 2 Pin 6, the pin 7 of chip IC 2, the pin 9 of chip IC 2 and chip IC 2 pin 10, the collector of triode V1 connects resistance The other end of R3, resistance R4, the anode of diode D5 and chip IC 1 pin 1, the base stage of triode V1 connects resistance R5, electricity The pin 8 of the other end connection chip IC 2 of R5 is hindered, the pin 3 of chip IC 2 connects resistance R10, the other end connection of resistance R10 A fixing end of potentiometer RP1, another fixing end of potentiometer RP1 connect resistance R9, and the other end of resistance R9 connects core The pin 1 of piece IC2, the sliding end of another point connection potentiometer RP1 of capacitor C1, the pin 2 of chip IC 2 connect resistance R4, electricity Hinder R7 and resistance R8, the anode of the other end connection diode D3 of resistance R7, the yin of the cathode connection diode D4 of diode D3 Pole, resistance R6 and battery E anode, resistance R7 the other end connection diode D4 anode and diode D5 cathode.
The model LM317 of chip IC 1, the model CD4541BE of chip IC 2.Diode D3 and diode D4 is hair Optical diode.The model SMAJ5.0A of transient voltage suppressor diode DZ.
The working principle of the utility model is: capacitance-resistance voltage reduction circuit is sent into rectifier bridge T after being depressured 220V alternating current, rectification Bridge T rectifies the alternating voltage of input, exports DC voltage, and transient voltage suppressor diode DZ can eliminate city's electro-mechanical wave The peak voltage of generation increases the stability of circuit, and R1, D1 constitute flow-limiting voltage-stabilizing circuit in Fig. 1, provides one to chip IC 2 Constant DC power supply, chip IC 2 are programmable oscillation delay circuit, and frequency of oscillation is determined that chip IC 2 is logical by R9, RP1, C1 Just start timing after electricity.8th foot is output pin, and initial value is low level, when to the charging time, is jumped as high level, and one Directly maintain high level state, chip IC 1, R3, R4, R8, D5 constitute pressure-stabilizing constant flow circuit, chip IC 1 the 2nd, it is permanent between 1 foot It is set to 1.25V;After plus rechargeable battery, the end charging current limiter resistance R8 voltage is constant in 1.25V, in addition the forward voltage drop of D5 is about The resistance value of 1.9V, R8 are lO Ω, and the charging current for flowing through R8 in this way is constant in 190mA or so, along with the small electricity for flowing through R6, D3 Stream, makes total charging current 200mA or so to battery.When being charged to timing t, the 8th foot jump of chip IC 2 is height Level makes triode V1 saturation conduction, by 1 foot current potential clamper of chip IC 1 in several volts of zero point, makes the 2nd foot current potential lower than battery Positive terminal potential, D3, D4 cut-off, at this moment only D2, R6 reach trickle charge to the low current charge of battery offer 10mA or so Purpose.

Claims (4)

1. a kind of safe charging circuit for effectively inhibiting peak voltage, including the suppression of capacitance-resistance voltage reduction circuit, rectifier bridge T, transient voltage Diode DZ processed and chip IC 1;It is characterized in that, the capacitance-resistance voltage reduction circuit includes resistance R11 and capacitor C2, the resistance R11 is connected in parallel rear one end with capacitor C2 and connects 220V alternating current, and the other end connects the port 1 of rectifier bridge T, the port 2 of rectifier bridge T Be separately connected one end of resistance R1, transient voltage suppressor diode DZ, the anode of diode D2 and chip IC 1 pin 3, resistance The cathode and resistance R2 of the other end connection diode D1 of R1, pin 12, the chip of the other end connection chip IC 2 of resistance R2 The pin 13 of IC2 and the pin 14 of chip IC 2, anode connection resistance R3, the emitter of triode V1, the transient state electricity of diode D1 Constrain the other end of diode DZ processed, the port 4 of rectifier bridge T, the cathode of battery E, the pin 5 of chip IC 2, chip IC 2 Pin 6, the pin 7 of chip IC 2, the pin 9 of chip IC 2 and chip IC 2 pin 10, the collector of triode V1 connects resistance The other end of R3, resistance R4, the anode of diode D5 and chip IC 1 pin 1, the base stage of triode V1 connects resistance R5, electricity The pin 8 of the other end connection chip IC 2 of R5 is hindered, the pin 3 of chip IC 2 connects resistance R10, the other end connection of resistance R10 A fixing end of potentiometer RP1, another fixing end of potentiometer RP1 connect resistance R9, and the other end of resistance R9 connects core The pin 1 of piece IC2, the sliding end of another point connection potentiometer RP1 of capacitor C1, the pin 2 of chip IC 2 connect resistance R4, electricity Hinder R7 and resistance R8, the anode of the other end connection diode D3 of resistance R7, the yin of the cathode connection diode D4 of diode D3 Pole, resistance R6 and battery E anode, resistance R7 the other end connection diode D4 anode and diode D5 cathode.
2. a kind of safe charging circuit for effectively inhibiting peak voltage according to claim 1, which is characterized in that the core The model LM317 of piece IC1, the model CD4541BE of chip IC 2.
3. a kind of safe charging circuit for effectively inhibiting peak voltage according to claim 1, which is characterized in that described two Pole pipe D3 and diode D4 is light emitting diode.
4. a kind of safe charging circuit for effectively inhibiting peak voltage according to claim 1, which is characterized in that the wink The model SMAJ5.0A of state voltage suppression diode DZ.
CN201820565581.7U 2018-04-20 2018-04-20 A kind of effective safe charging circuit for inhibiting peak voltage Active CN208423907U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820565581.7U CN208423907U (en) 2018-04-20 2018-04-20 A kind of effective safe charging circuit for inhibiting peak voltage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820565581.7U CN208423907U (en) 2018-04-20 2018-04-20 A kind of effective safe charging circuit for inhibiting peak voltage

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CN208423907U true CN208423907U (en) 2019-01-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110429488A (en) * 2019-06-06 2019-11-08 国网山东省电力公司高青县供电公司 A kind of direct current cabinet replacement portable load switching power supply box

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110429488A (en) * 2019-06-06 2019-11-08 国网山东省电力公司高青县供电公司 A kind of direct current cabinet replacement portable load switching power supply box

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