CN205725095U - Super-charge super-discharge is full of the circuit of the double battery capacity indication of instruction - Google Patents

Super-charge super-discharge is full of the circuit of the double battery capacity indication of instruction Download PDF

Info

Publication number
CN205725095U
CN205725095U CN201620315025.5U CN201620315025U CN205725095U CN 205725095 U CN205725095 U CN 205725095U CN 201620315025 U CN201620315025 U CN 201620315025U CN 205725095 U CN205725095 U CN 205725095U
Authority
CN
China
Prior art keywords
audion
resistance
circuit
colelctor electrode
base stage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201620315025.5U
Other languages
Chinese (zh)
Inventor
蒋小荣
胡沃康
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Kennede Electronics Manufacturing Co Ltd
Original Assignee
Guangdong Kennede Electronics Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Kennede Electronics Manufacturing Co Ltd filed Critical Guangdong Kennede Electronics Manufacturing Co Ltd
Priority to CN201620315025.5U priority Critical patent/CN205725095U/en
Application granted granted Critical
Publication of CN205725095U publication Critical patent/CN205725095U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

This utility model discloses a kind of super-charge super-discharge and is full of the circuit of the double battery capacity indication of instruction, including power circuit, the rechargeable battery that is connected with described power circuit and being connected with described rechargeable battery and the load display lamp group of belt switch, described power circuit includes power input, the reduction voltage circuit being connected with described power input, the rectification circuit being connected with described reduction voltage circuit, it is characterized in that: between described power circuit and described rechargeable battery, be additionally provided with overcharge protection circuit, it is provided with over-discharge protection circuit between described rechargeable battery and described load display lamp group, it is additionally provided with the charging and discharging state indicating circuit being connected with described rechargeable battery.Simple in construction of the present utility model, simple operation, can realize overcharging protection, Cross prevention, being full of the functions such as instruction and battery capacity indication, and stability in use is good, multiple functional, and the suitability is strong and practicality good.

Description

Super-charge super-discharge is full of the circuit of the double battery capacity indication of instruction
Technical field
This utility model relates to circuit engineering field, is full of the circuit of the double battery capacity indication of instruction particularly to super-charge super-discharge.
Background technology
Conventional emergence lighting lamp is all with battery and need to be charged battery; overcharge or discharge and all battery can be caused damage; overcharge and over-discharge protection circuit it is thus desirable to increase; the state of electricity during in order to show battery charging and discharging more intuitively; thus add and be full of instruction and battery capacity indication circuit; how to realize being full of instruction and electric quantity indication function in same set of circuit, this just proposes a great challenge to design.
Utility model content
Main purpose of the present utility model is to provide a kind of super-charge super-discharge and is full of instruction and holds concurrently the circuit of battery capacity indication, it is intended to solve conventional art is full of instruction and battery capacity indication can not in same circuit the deficiency such as complete fusion.
The utility model proposes a kind of super-charge super-discharge and be full of the circuit of the double battery capacity indication of instruction, including power circuit, the rechargeable battery that is connected with described power circuit and being connected with described rechargeable battery and the load display lamp group of belt switch, described power circuit includes power input, the reduction voltage circuit being connected with described power input, the rectification circuit being connected with described reduction voltage circuit, it is additionally provided with overcharge protection circuit between described power circuit and described rechargeable battery, it is provided with over-discharge protection circuit between described rechargeable battery and described load display lamp group, it is additionally provided with the charging and discharging state indicating circuit being connected with described rechargeable battery.
Described overcharge protection circuit includes the first audion, the second resistance, the 3rd resistance, the 4th uniguide and the second stabilivolt; the colelctor electrode of described first audion is connected by the outfan of the second resistance with described rectification circuit; the emitter stage of described first audion is connected with the positive pole of rechargeable battery by the 4th uniguide; the base stage of described first audion passes through the second stabilivolt ground connection, and described 3rd resistance is connected between base stage and the colelctor electrode of described first audion.
nullDescribed over-discharge protection circuit includes the 8th unilateral diode、9th unilateral diode、7th unilateral diode、5th audion、3rd electric capacity、22nd resistance、6th audion、7th audion、3rd Zener diode、4th electric capacity、3rd electric capacity、23rd resistance、24th resistance、15th resistance、16th resistance、17th resistance、18th resistance、19th resistance、25th resistance、20th resistance and the 21st resistance,The outfan of described rectification circuit is followed by the base stage of the 6th audion by the 8th unilateral diode and the 16th resistance series circuit,The outfan of described rectification circuit is connected on the positive pole of the 7th unilateral diode,The described negative pole of the 7th unilateral diode and the negative pole of the 9th unilateral diode is connected and the described positive pole of the 9th unilateral diode and the base stage of the 5th audion are connected,The emitter stage of described 5th audion is connected on the negative pole of the 7th unilateral diode by the 23rd resistance,The base stage of described 5th audion is connected on the emitter stage of the 5th audion by the 24th resistance,The colelctor electrode of described 5th audion is connect by the 3rd Zener diode and the 19th resistance,Described 18th resistance is in parallel with described 19th resistance,The colelctor electrode of described 6th audion is connected on the negative pole of described 7th unilateral diode by the 15th resistance,And the grounded emitter of described 6th audion,Described 4th electric capacity is connected between colelctor electrode and the emitter stage of the 6th audion,The base stage of described 6th audion is connected on the junction point of the 3rd Zener diode and the 19th resistance by the 17th resistance,The colelctor electrode of described 5th audion is connected with switch and described 3rd electric capacity is connected between emitter stage and the colelctor electrode of described 5th audion,The colelctor electrode of described 7th audion is connected to load the negative pole of display lamp group by the 22nd resistance,The grounded emitter of described 7th audion,The base stage of described 7th audion is connected to described 21st resistance on the colelctor electrode of the 5th audion by the 20th resistance and is connected between base stage and the ground of the 7th audion,25th resistance is connected between emitter stage and the ground of the 5th audion.
nullDescribed charging and discharging state indicating circuit includes the 3rd unilateral diode、4th resistance、Tenth unilateral diode、3rd audion、First Zener diode、5th resistance、14th resistance、Second audion、6th resistance、7th resistance、8th resistance、9th resistance、First display lamp、Tenth resistance、First electric capacity、4th audion、11st resistance、12nd resistance and the second display lamp,The negative pole of described 3rd unilateral diode is connected through the emitter stage of the 4th resistance and the 3rd audion,The positive pole of described 3rd unilateral diode is connected on the emitter stage of the first audion,The colelctor electrode of described 3rd audion is connected by the base stage of the tenth resistance and the 4th audion,The base stage of described second audion is connected on the emitter stage of the 3rd audion after the series circuit by the 5th resistance and the first Zener diode,Described 14th resistance is connected between base stage and the ground wire of the second audion,The colelctor electrode of described second audion passes through the 6th resistance、The base stage of the 3rd audion it is connected to after 7th resistor coupled in parallel circuit,It is connected to after described 8th resistance and the series connection of the first display lamp between colelctor electrode and the ground wire of the 3rd audion,Described 9th resistance and described 8th resistance、First display lamp series circuit is in parallel,Described first electric capacity is connected between base stage and the ground wire of the 4th audion,The grounded emitter of described 4th audion,The colelctor electrode of described 4th audion is connected by the positive pole of the 12nd resistance and the second display lamp,Described 11st resistance is connected between emitter stage and the positive pole of the second display lamp of described 3rd audion,The positive pole of described tenth unilateral diode is connected on the colelctor electrode of the 5th audion and the negative pole of described tenth unilateral diode is connected on the emitter stage of the 3rd audion.
Outfan at described rectification circuit is parallel with filter capacitor, and the outfan at described rectification circuit is also parallel with the first resistance, the 3rd display lamp series circuit.
Described first audion, the second audion, the 4th audion, the 6th audion and the 7th audion are NPN type triode, and described 3rd audion and the 5th audion are PNP type triode.
Simple in construction of the present utility model, simple operation, can realize overcharging protection, Cross prevention, being full of the functions such as instruction and battery capacity indication, and stability in use is good, multiple functional, and the suitability is strong and practicality good.
Accompanying drawing explanation
Fig. 1 is embodiment schematic diagram of the present utility model.
The realization of this utility model purpose, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.
Detailed description of the invention
Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
With reference to Fig. 1, an embodiment of the present utility model is proposed, a kind of super-charge super-discharge is full of the circuit of the double battery capacity indication of instruction, including power circuit 1, the rechargeable battery 2 that is connected with described power circuit 1 and being connected with described rechargeable battery 2 and load display lamp group 3 LED4 as shown in the figure of belt switch SW1, LED5 and LED6 parallel circuit, described power circuit 1 includes power input, the reduction voltage circuit 11 being connected with described power input, the rectification circuit 12 being connected with described reduction voltage circuit 11, it is additionally provided with overcharge protection circuit 4 between described power circuit 1 and described rechargeable battery 2, it is provided with over-discharge protection circuit 5 between described rechargeable battery 2 and described load display lamp group 3, it is additionally provided with the charging and discharging state indicating circuit 6 being connected with described rechargeable battery 2.
Described overcharge protection circuit 4 includes the first audion Q3, the second resistance R2, the 3rd resistance R3, the 4th uniguide D4 and the second stabilivolt Z2; the colelctor electrode of described first audion Q3 is connected by the outfan of the second resistance R2 with described rectification circuit 12; the emitter stage of described first audion Q3 is connected with the positive pole of rechargeable battery 2 by the 4th uniguide D4; the base stage of described first audion Q3 passes through the second stabilivolt Z2 ground connection, and described 3rd resistance R3 is connected between base stage and the colelctor electrode of described first audion Q3.
nullDescribed over-discharge protection circuit 5 includes the 8th unilateral diode D8、9th unilateral diode D9、7th unilateral diode D7、5th audion Q5、3rd electric capacity C3、22nd resistance R22、6th audion Q6、7th audion Q7、3rd Zener diode Z3、4th electric capacity C4、3rd electric capacity C3、23rd resistance R23、24th resistance R24、15th resistance R15、16th resistance R16、17th resistance R17、18th resistance R18、19th resistance R19、25th resistance R25、20th resistance R20 and the 21st resistance R21,The outfan of described rectification circuit is followed by the base stage of the 6th audion Q6 by the 8th unilateral diode D8 and the 16th resistance R16 series circuit,The outfan of described rectification circuit is connected on the positive pole of the 7th unilateral diode D7,The described negative pole of the 7th unilateral diode D7 and the negative pole of the 9th unilateral diode D9 is connected and the described positive pole of the 9th unilateral diode D9 and the base stage of the 5th audion Q5 are connected,The emitter stage of described 5th audion Q5 is connected on the negative pole of the 7th unilateral diode D7 by the 23rd resistance R23,The base stage of described 5th audion Q5 is connected on the emitter stage of the 5th audion Q5 by the 24th resistance R24,The colelctor electrode of described 5th audion Q5 is connect by the 3rd Zener diode Z3 and the 19th resistance R19,Described 18th resistance R18 is in parallel with described 19th resistance R19,The colelctor electrode of described 6th audion Q6 is connected on the negative pole of described 7th unilateral diode D7 by the 15th resistance R15,And the grounded emitter of described 6th audion Q6,Described 4th electric capacity C4 is connected between colelctor electrode and the emitter stage of the 6th audion Q6,The base stage of described 6th audion Q6 is connected on the junction point of the 3rd Zener diode Z3 and the 19th resistance R19 by the 17th resistance R17,The colelctor electrode of described 5th audion Q5 is connected with switch and described 3rd electric capacity C3 is connected between emitter stage and the colelctor electrode of described 5th audion Q5,The colelctor electrode of described 7th audion Q7 is connected to load the negative pole of display lamp group by the 22nd resistance R22,The grounded emitter of described 7th audion Q7,The base stage of described 7th audion Q7 is connected on the colelctor electrode of the 5th audion Q5 by the 20th resistance R20,Described 21st resistance R21 is connected between base stage and the ground of the 7th audion Q7,25th resistance R25 is connected between emitter stage and the ground of the 5th audion Q5.
nullDescribed charging and discharging state indicating circuit 6 includes the 3rd unilateral diode D3、4th resistance R4、Tenth unilateral diode D10、3rd audion Q3、First Zener diode Z1、5th resistance R5、14th resistance R14、Second audion Q2、6th resistance R6、7th resistance R7、8th resistance R8、9th resistance R9、First display lamp LED1、Tenth resistance R10、First electric capacity C1、4th audion Q4、11st resistance R11、12nd resistance R12 and the second display lamp LED2,The negative pole of described 3rd unilateral diode D3 is connected through the emitter stage of the 4th resistance R4 and the 3rd audion Q3,The positive pole of described 3rd unilateral diode D3 is connected on the emitter stage of the first audion Q3,The colelctor electrode of described 3rd audion Q3 is connected by the base stage of the tenth resistance R10 and the 4th audion Q4,The base stage of described second audion Q2 is by being connected on the emitter stage of the 3rd audion Q3 after the series circuit of the 5th resistance R5 and the first Zener diode Z1,Described 14th resistance R14 is connected between base stage and the ground wire of the second audion Q2,The colelctor electrode of described second audion Q2 passes through the 6th resistance R6、The base stage of the 3rd audion Q3 it is connected to after 7th resistance R7 parallel circuit,It is connected to after described 8th resistance R8 and the first display lamp LED1 series connection between colelctor electrode and the ground wire of the 3rd audion,Described 9th resistance R9 and described 8th resistance R8、First display lamp LED1 series circuit is in parallel,Described first electric capacity C1 is connected between base stage and the ground wire of the 4th audion Q4,The grounded emitter of described 4th audion Q4,The colelctor electrode of described 4th audion Q4 is connected by the positive pole of the 12nd resistance R12 and the second display lamp LED2,Described 11st resistance R11 is connected between emitter stage and the positive pole of the second display lamp LED2 of described 3rd audion Q3,The positive pole of described tenth unilateral diode D10 is connected on the colelctor electrode of the 5th audion Q5 and the negative pole of described tenth unilateral diode D10 is connected on the emitter stage of the 3rd audion Q3.
Outfan at described rectification circuit is parallel with filter capacitor C2, and the outfan at described rectification circuit is also parallel with the first resistance R1, the 3rd display lamp LED3 series circuit.
Described first audion Q3, the second audion Q2, the 4th audion Q4, the 6th audion Q6 and the 7th audion Q7 are NPN type triode, and described 3rd audion Q3 and the 5th audion Q5 is PNP type triode.
Its operation principle is summarized as follows: battery is charged after transformator and diode D1, D2, D4, D6 rectification by AC alternating current; Q1, R2, R3, Z2, D4 constitute overcharge protection circuit; when cell voltage reaches setting value; Z2 turns on; Q1 base stage gradually lose bias current and by, reached charging protection function;After switch SW1 Guan Bi, cell voltage is added to Q7 base stage, Q7 saturation conduction through Q5, and load LED4-LED5 normally works;Along with battery electric quantity gradually decreases, cell voltage is gradually lowered the most accordingly, and stabilivolt Z3 cathode voltage reduces the most accordingly, when voltage is less than setting value; Z3 ends, and Q6 base stage does not has bias voltage to end, and Q5 is also switched off; and then Q7 is also switched off, load quits work, thus reaches Cross prevention function;
When battery is in charged state, owing to D7 anode voltage is higher than Q5 base voltage, therefore D9 is in cut-off state, and Q5 is also at cut-off state, and load quits work;Now charge power supply is in addition to charging to battery, also by D3, R4, R11, being powered red led LED2, when in charging process, cell voltage does not reaches to set, stabilivolt Z1 is in cut-off state, Q2, Q3 are in cut-off state, and green indicating lamp LED1 is in OFF state;When cell voltage reaches setting value, stabilivolt Z1 reverse breakdown and turn on, Q2, Q3 are gradually turned on to saturation, and green indicating lamp LED1 gradually lights, and audion Q4 is also gradually turned on, and red led LED2 gradually extinguishes;
When battery is in discharge condition, battery passes through audion Q5 and diode D10, is powered LED indicating circuit;In like manner, when cell voltage is higher than setting value, green indicating lamp LED1 lights, and red led LED2 extinguishes;Cell voltage extinguishes less than green indicating lamp LED1 during setting value, and red led LED2 lights;When red represents that battery electric quantity is relatively low, and green light represents that battery electric quantity is higher.
Simple in construction of the present utility model, simple operation, can realize overcharging protection, Cross prevention, being full of the functions such as instruction and battery capacity indication, and stability in use is good, multiple functional, and the suitability is strong and practicality good.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure transformation utilizing this utility model description and accompanying drawing content to be made; or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in scope of patent protection of the present utility model.

Claims (6)

1. a super-charge super-discharge is full of the circuit indicating battery capacity indication of holding concurrently, including power circuit, the rechargeable battery that is connected with described power circuit and being connected with described rechargeable battery and the load display lamp group of belt switch, described power circuit includes power input, the reduction voltage circuit being connected with described power input, the rectification circuit being connected with described reduction voltage circuit, it is characterized in that: between described power circuit and described rechargeable battery, be additionally provided with overcharge protection circuit, it is provided with over-discharge protection circuit between described rechargeable battery and described load display lamp group, it is additionally provided with the charging and discharging state indicating circuit being connected with described rechargeable battery.
Super-charge super-discharge the most according to claim 1 is full of the circuit of the double battery capacity indication of instruction, it is characterized in that: described overcharge protection circuit includes the first audion, second resistance, 3rd resistance, 4th uniguide and the second stabilivolt, the colelctor electrode of described first audion is connected by the outfan of the second resistance with described rectification circuit, the emitter stage of described first audion is connected with the positive pole of rechargeable battery by the 4th uniguide, the base stage of described first audion passes through the second stabilivolt ground connection, described 3rd resistance is connected between base stage and the colelctor electrode of described first audion.
nullSuper-charge super-discharge the most according to claim 2 is full of the circuit of the double battery capacity indication of instruction,It is characterized in that: described over-discharge protection circuit includes the 8th unilateral diode、9th unilateral diode、7th unilateral diode、5th audion、3rd electric capacity、22nd resistance、6th audion、7th audion、3rd Zener diode、4th electric capacity、3rd electric capacity、23rd resistance、24th resistance、15th resistance、16th resistance、17th resistance、18th resistance、19th resistance、25th resistance、20th resistance and the 21st resistance,The outfan of described rectification circuit is followed by the base stage of the 6th audion by the 8th unilateral diode and the 16th resistance series circuit,The outfan of described rectification circuit is connected on the positive pole of the 7th unilateral diode,The described negative pole of the 7th unilateral diode and the negative pole of the 9th unilateral diode is connected and the described positive pole of the 9th unilateral diode and the base stage of the 5th audion are connected,The emitter stage of described 5th audion is connected on the negative pole of the 7th unilateral diode by the 23rd resistance,The base stage of described 5th audion is connected on the emitter stage of the 5th audion by the 24th resistance,The colelctor electrode of described 5th audion is connect by the 3rd Zener diode and the 19th resistance,Described 18th resistance is in parallel with described 19th resistance,The colelctor electrode of described 6th audion is connected on the negative pole of described 7th unilateral diode by the 15th resistance,And the grounded emitter of described 6th audion,Described 4th electric capacity is connected between colelctor electrode and the emitter stage of the 6th audion,The base stage of described 6th audion is connected on the junction point of the 3rd Zener diode and the 19th resistance by the 17th resistance,The colelctor electrode of described 5th audion is connected with switch and described 3rd electric capacity is connected between emitter stage and the colelctor electrode of described 5th audion,The colelctor electrode of described 7th audion is connected to load the negative pole of display lamp group by the 22nd resistance,The grounded emitter of described 7th audion,The base stage of described 7th audion is connected on the colelctor electrode of the 5th audion by the 20th resistance,Described 21st resistance R21 is connected between base stage and the ground of the 7th audion Q7,25th resistance is connected between emitter stage and the ground of the 5th audion.
nullSuper-charge super-discharge the most according to claim 3 is full of the circuit of the double battery capacity indication of instruction,It is characterized in that: described charging and discharging state indicating circuit includes the 3rd unilateral diode、4th resistance、Tenth unilateral diode、3rd audion、First Zener diode、5th resistance、14th resistance、Second audion、6th resistance、7th resistance、8th resistance、9th resistance、First display lamp、Tenth resistance、First electric capacity、4th audion、11st resistance、12nd resistance and the second display lamp,The negative pole of described 3rd unilateral diode is connected through the emitter stage of the 4th resistance and the 3rd audion,The positive pole of described 3rd unilateral diode is connected on the emitter stage of the first audion,The colelctor electrode of described 3rd audion is connected by the base stage of the tenth resistance and the 4th audion,The base stage of described second audion is connected on the emitter stage of the 3rd audion after the series circuit by the 5th resistance and the first Zener diode,Described 14th resistance is connected between base stage and the ground wire of the second audion,The colelctor electrode of described second audion passes through the 6th resistance、The base stage of the 3rd audion it is connected to after 7th resistor coupled in parallel circuit,It is connected to after described 8th resistance and the series connection of the first display lamp between colelctor electrode and the ground wire of the 3rd audion,Described 9th resistance and described 8th resistance、First display lamp series circuit is in parallel,Described first electric capacity is connected between base stage and the ground wire of the 4th audion,The grounded emitter of described 4th audion,The colelctor electrode of described 4th audion is connected by the positive pole of the 12nd resistance and the second display lamp,Described 11st resistance is connected between emitter stage and the positive pole of the second display lamp of described 3rd audion,The positive pole of described tenth unilateral diode is connected on the colelctor electrode of the 5th audion and the negative pole of described tenth unilateral diode is connected on the emitter stage of the 3rd audion.
Super-charge super-discharge the most according to claim 4 is full of the circuit of the double battery capacity indication of instruction, it is characterized in that: the outfan at described rectification circuit is parallel with filter capacitor, the outfan at described rectification circuit is also parallel with the first resistance, the 3rd display lamp series circuit.
Super-charge super-discharge the most according to claim 5 is full of the circuit of the double battery capacity indication of instruction, it is characterized in that: described first audion, the second audion, the 4th audion, the 6th audion and the 7th audion are NPN type triode, described 3rd audion and the 5th audion are PNP type triode.
CN201620315025.5U 2016-04-15 2016-04-15 Super-charge super-discharge is full of the circuit of the double battery capacity indication of instruction Active CN205725095U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620315025.5U CN205725095U (en) 2016-04-15 2016-04-15 Super-charge super-discharge is full of the circuit of the double battery capacity indication of instruction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620315025.5U CN205725095U (en) 2016-04-15 2016-04-15 Super-charge super-discharge is full of the circuit of the double battery capacity indication of instruction

Publications (1)

Publication Number Publication Date
CN205725095U true CN205725095U (en) 2016-11-23

Family

ID=57307535

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620315025.5U Active CN205725095U (en) 2016-04-15 2016-04-15 Super-charge super-discharge is full of the circuit of the double battery capacity indication of instruction

Country Status (1)

Country Link
CN (1) CN205725095U (en)

Similar Documents

Publication Publication Date Title
CN105098891A (en) Common-port charging awakening circuit for battery management system
CN202455095U (en) Charging indicating lamp line of vehicle-mounted charger
CN205693386U (en) New type solar energy plate postpones overcharge protection circuit
CN205725095U (en) Super-charge super-discharge is full of the circuit of the double battery capacity indication of instruction
CN205957102U (en) Electric shock prevention function circuit is just taken to power supply battery automatic switch -over
CN205646879U (en) Novel area is full of instruction and excessive pressure charge protection's circuit
CN205178601U (en) Storage battery charging power
CN206790150U (en) One kind is with anti-reverse external mobile battery over-discharge protection circuit
CN206977072U (en) A kind of band overcharges protection and battery status instruction charging circuit
CN202132855U (en) Solar emergency lamp
CN204103480U (en) A kind of charger reversal connection and short-circuit protection circuit
CN106532838A (en) Internal circuit of charger of using USB interface of computer
CN206313426U (en) A kind of short-circuit protector with warning function
CN206481072U (en) Automatic identification both positive and negative polarity charger circuit
CN206164069U (en) Power overload indication ripple voltage -spike suppression circuit
CN206697920U (en) A kind of anti-overcharge protection circuit of battery charger
CN206932438U (en) A kind of automatic conversion emergency light with low pressure detection and full of instruction
CN206211630U (en) A kind of many charging modes band defencive function lithium battery charging circuits
CN208939105U (en) A kind of lithium battery protection board that carried charge is shown
CN206790153U (en) One kind charging is turned off the light with Cross prevention functional circuit
CN206135464U (en) Intelligence continuous current plant
CN206060265U (en) Bi-colour light battery capacity indication circuit
CN204333119U (en) A kind of low temperature lithium battery
CN218649005U (en) Car light constant current lamp pearl short-circuit protection circuit and use car light of this circuit
CN206077037U (en) A kind of resistance-capacitance depressurization rechargeable battery condition indication circuit

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant