CN204947698U - A kind of nickel-metal hydride battery charger with LED instruction - Google Patents
A kind of nickel-metal hydride battery charger with LED instruction Download PDFInfo
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- CN204947698U CN204947698U CN201520565563.5U CN201520565563U CN204947698U CN 204947698 U CN204947698 U CN 204947698U CN 201520565563 U CN201520565563 U CN 201520565563U CN 204947698 U CN204947698 U CN 204947698U
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Abstract
The utility model discloses a kind of nickel-metal hydride battery charger with LED instruction, comprise rectifier bridge Q, transformer T, electric capacity C1, resistance R1, diode D1 and potentiometer RP, transformer T coil L1 two ends connect 220V alternating current two ends respectively, transformer T coil L2 two ends connect rectifier bridge Q pin 1 and rectifier bridge Q pin 3 respectively, rectifier bridge Q pin 2 is connecting luminous diode LED1 positive pole and triode T1 emitter respectively, triode T1 collector electrode is contact resistance R4 respectively, resistance R6, electric capacity C4 and storage battery E positive pole, triode T1 base stage connecting luminous diode LED2 positive pole, LED 2 negative pole contact resistance R2.This charger has the several functions such as pulsation current-limiting charge, trickle charge, charging automatic stop, thus achieves the intellectuality of charging, keeps an eye on without the need to people; 2. this charger relies on the remaining electricity of battery to trigger, and basic Non voltage output when not connecing battery, only has and correctly connect battery, just have charging current to export, have short-circuit protection or reversal connection protection function.
Description
Technical field
The utility model relates to a kind of charger, specifically a kind of nickel-metal hydride battery charger with LED instruction.
Background technology
Storage battery as a kind of can the power store of Reusability; application widely; but the useful life of storage battery and it whether often to overcharge relation very large; frequent overcharge; meeting high degree shortens the life-span of storage battery, more existing battery charging circuit complex structures, and cost is high; and there is function singleness, there is no charge protection etc. shortcoming.
Utility model content
The purpose of this utility model is to provide a kind of nickel-metal hydride battery charger with LED instruction, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
With a nickel-metal hydride battery charger for LED instruction, comprise rectifier bridge Q, transformer T, electric capacity C1, resistance R1, diode D1 and potentiometer RP, described transformer T coil L1 two ends connect 220V alternating current two ends respectively, transformer T coil L2 two ends connect rectifier bridge Q pin 1 and rectifier bridge Q pin 3 respectively, rectifier bridge Q pin 2 is connecting luminous diode LED1 positive pole and triode T1 emitter respectively, and triode T1 collector electrode is contact resistance R4 respectively, resistance R6, electric capacity C4 and storage battery E positive pole, triode T1 base stage connecting luminous diode LED2 positive pole, LED 2 negative pole contact resistance R2, the resistance R2 other end is contact resistance R3 and triode T2 collector electrode respectively, the resistance R3 other end connects electric capacity C2, and the electric capacity C2 other end is connecting triode T3 base stage respectively, resistance R5 and diode D1 negative pole, triode T3 collector electrode is connecting triode T2 base stage and the resistance R4 other end respectively, and diode D1 positive pole is the contact resistance R6 other end respectively, the electric capacity C4 other end, electric capacity C3, potentiometer RP and potentiometer RP slide plate, the potentiometer RP other end connects storage battery E negative pole respectively, the electric capacity C3 other end, the resistance R5 other end and resistance R7, the resistance R7 other end is connecting triode T3 emitter respectively, triode T2 emitter, resistance R1, the electric capacity C1 other end and rectifier bridge Q pin 4, resistance R1 other end connecting luminous diode LED1 negative pole.
As the utility model further scheme: described storage battery E is single-unit Ni-MH battery.
Compared with prior art, the beneficial effects of the utility model are: 1. this charger has the several functions such as pulsation current-limiting charge, trickle charge, charging automatic stop, thus achieves the intellectuality of charging, keeps an eye on without the need to people; 2. this charger relies on the remaining electricity of battery to trigger, and basic Non voltage output when not connecing battery, only has and correctly connect battery, just have charging current to export, have short-circuit protection or reversal connection protection function; 3. this circuit applicability is strong, shows: (1) wide input voltage range; As long as (2) adjust the charging that potentiometer just can be applicable to the rechargeable battery of other kind.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the nickel-metal hydride battery charger of band LED instruction.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of nickel-metal hydride battery charger with LED instruction, comprises rectifier bridge Q, transformer T, electric capacity C1, resistance R1, diode D1 and potentiometer RP, transformer T coil L1 two ends connect 220V alternating current two ends respectively, transformer T coil L2 two ends connect rectifier bridge Q pin 1 and rectifier bridge Q pin 3 respectively, rectifier bridge Q pin 2 is connecting luminous diode LED1 positive pole and triode T1 emitter respectively, and triode T1 collector electrode is contact resistance R4 respectively, resistance R6, electric capacity C4 and storage battery E positive pole, triode T1 base stage connecting luminous diode LED2 positive pole, LED 2 negative pole contact resistance R2, the resistance R2 other end is contact resistance R3 and triode T2 collector electrode respectively, the resistance R3 other end connects electric capacity C2, and the electric capacity C2 other end is connecting triode T3 base stage respectively, resistance R5 and diode D1 negative pole, triode T3 collector electrode is connecting triode T2 base stage and the resistance R4 other end respectively, and diode D1 positive pole is the contact resistance R6 other end respectively, the electric capacity C4 other end, electric capacity C3, potentiometer RP and potentiometer RP slide plate, the potentiometer RP other end connects storage battery E negative pole respectively, the electric capacity C3 other end, the resistance R5 other end and resistance R7, the resistance R7 other end is connecting triode T3 emitter respectively, triode T2 emitter, resistance R1, the electric capacity C1 other end and rectifier bridge Q pin 4, resistance R1 other end connecting luminous diode LED1 negative pole.
Storage battery E is single-unit Ni-MH battery.
Operation principle of the present utility model is: refer to Fig. 1, and civil power passes through transformer transformation, by full-bridge rectification, electric capacity C1 filtering becomes direct current, and LED1 is power supply indicator, and LED2 is charging indicator light, and T1 controls triode for charging, works on off state; T2, T3 and electric capacity C2 form monostable trigger, and R6, RP form pressure limiting sample circuit, and R7 is current limliting sample resistance.
Holding state: switch on power, if do not meet storage battery E, triode T2 is because ending without base voltage, and triode T1 also ends, Non voltage output, now only has power supply indicator LED1 luminous.
Charging process: after correctly connecting recharged battery E, triode T2 slight conducting because of electricity more than storage battery E, its collector potential declines, the rapid conducting of T1, and output voltage raises; Because C2 is positive feedback effect, circuit state reaches stable state rapidly.Now, T1, T2 conducting, T3 cut-off, accumulators E charges, and charging indicator light LED2 is luminous.
Current-limiting charge: if charging current is greater than limit value, current sampling resistor R7 both end voltage raises, and the BE voltage across poles of triode T3 is higher than dead zone voltage, and monostable trigger state is triggered.T3 conducting, T1, T2 end, and charging stops; Then monostable trigger automatically resets, and enters charged state again, and carry out pulsation charging so again and again, charging indicator light LED2 glimmers.
Charging automatic stop: along with the carrying out of charging, storage battery E both end voltage slowly rises, and pulsewidth narrows, and charging current diminishes, charging indicator light LED2 flicker accelerates dimmed gradually.Until storage battery E close to when being full of, diode D1 conducting, T3 is conducting also, and T1, T2 end, have turned off charging circuit passband, complete charge, in actual charging process, leaves standstill a little while because storage battery E charges, storage battery E voltage has again and reduces slightly, thus can occur intermittent charge phenomenon, but can't see LED2 flicker, this thin,tough silk current charge mode is conducive to extending the storage battery E life-span.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (2)
1. the nickel-metal hydride battery charger with LED instruction, comprises rectifier bridge Q, transformer T, electric capacity C1, resistance R1, diode D1 and potentiometer RP, it is characterized in that, described transformer T coil L1 two ends connect 220V alternating current two ends respectively, transformer T coil L2 two ends connect rectifier bridge Q pin 1 and rectifier bridge Q pin 3 respectively, rectifier bridge Q pin 2 is connecting luminous diode LED1 positive pole and triode T1 emitter respectively, and triode T1 collector electrode is contact resistance R4 respectively, resistance R6, electric capacity C4 and storage battery E positive pole, triode T1 base stage connecting luminous diode LED2 positive pole, LED 2 negative pole contact resistance R2, the resistance R2 other end is contact resistance R3 and triode T2 collector electrode respectively, the resistance R3 other end connects electric capacity C2, and the electric capacity C2 other end is connecting triode T3 base stage respectively, resistance R5 and diode D1 negative pole, triode T3 collector electrode is connecting triode T2 base stage and the resistance R4 other end respectively, and diode D1 positive pole is the contact resistance R6 other end respectively, the electric capacity C4 other end, electric capacity C3, potentiometer RP and potentiometer RP slide plate, the potentiometer RP other end connects storage battery E negative pole respectively, the electric capacity C3 other end, the resistance R5 other end and resistance R7, the resistance R7 other end is connecting triode T3 emitter respectively, triode T2 emitter, resistance R1, the electric capacity C1 other end and rectifier bridge Q pin 4, resistance R1 other end connecting luminous diode LED1 negative pole.
2. the nickel-metal hydride battery charger of band LED according to claim 1 instruction, it is characterized in that, described storage battery E is single-unit Ni-MH battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520565563.5U CN204947698U (en) | 2015-07-28 | 2015-07-28 | A kind of nickel-metal hydride battery charger with LED instruction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520565563.5U CN204947698U (en) | 2015-07-28 | 2015-07-28 | A kind of nickel-metal hydride battery charger with LED instruction |
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| Publication Number | Publication Date |
|---|---|
| CN204947698U true CN204947698U (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520565563.5U Expired - Fee Related CN204947698U (en) | 2015-07-28 | 2015-07-28 | A kind of nickel-metal hydride battery charger with LED instruction |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108512274A (en) * | 2018-04-20 | 2018-09-07 | 广州金升阳科技有限公司 | A kind of battery charger adaptive circuit |
| CN109272785A (en) * | 2018-11-20 | 2019-01-25 | 安徽奕甲文化传媒有限责任公司 | Long-distance educational system |
| CN109345811A (en) * | 2018-11-20 | 2019-02-15 | 安徽奕甲文化传媒有限责任公司 | Exhibition system based on Streaming Media |
| CN111343525A (en) * | 2020-03-14 | 2020-06-26 | 深圳市同创依诺数码科技有限公司 | BS23 small-sized gun WIFI AI intelligent voice sound box |
-
2015
- 2015-07-28 CN CN201520565563.5U patent/CN204947698U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108512274A (en) * | 2018-04-20 | 2018-09-07 | 广州金升阳科技有限公司 | A kind of battery charger adaptive circuit |
| CN109272785A (en) * | 2018-11-20 | 2019-01-25 | 安徽奕甲文化传媒有限责任公司 | Long-distance educational system |
| CN109345811A (en) * | 2018-11-20 | 2019-02-15 | 安徽奕甲文化传媒有限责任公司 | Exhibition system based on Streaming Media |
| CN111343525A (en) * | 2020-03-14 | 2020-06-26 | 深圳市同创依诺数码科技有限公司 | BS23 small-sized gun WIFI AI intelligent voice sound box |
| CN111343525B (en) * | 2020-03-14 | 2021-01-12 | 深圳市同创依诺数码科技有限公司 | BS23 small-sized gun WIFI AI intelligent voice sound box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20160728 |
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| CF01 | Termination of patent right due to non-payment of annual fee |