CN2538088Y - Full autoamtic charger with three colour LED indication - Google Patents

Full autoamtic charger with three colour LED indication Download PDF

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Publication number
CN2538088Y
CN2538088Y CN 02216585 CN02216585U CN2538088Y CN 2538088 Y CN2538088 Y CN 2538088Y CN 02216585 CN02216585 CN 02216585 CN 02216585 U CN02216585 U CN 02216585U CN 2538088 Y CN2538088 Y CN 2538088Y
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connect
amplifier
led
resistance
triode
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Expired - Fee Related
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CN 02216585
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Chinese (zh)
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宋嘉鸿
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Individual
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Abstract

The utility model discloses an automatic charger with indicating of a three-color LED, which is designed based on the charging and discharging characteristic curve of nickel-cadmium and nickel-hydrogen batteries; a charging method with constant current source is also adopted, and the charger is switched to trickle charging when being full. Meanwhile, the colors of red, green and yellow of the LED indicate discharging, charging and approximately full of the charger respectively, which can be automatically conversed. As the reference voltage of discharging machine of the charger is arranged as 2.0V (two batteries are connected in series), discharging of the battery stops at 2.0V, and the charger can also be used as a measurer of the battery capacity to measure the capacity of the battery and to distinguish fake and inferior batteries.

Description

Full-automatic charger with three-color LED indication
The utility model relates to a kind of full-automatic charger, especially a kind of full-automatic charger with three-color LED indication.
At present, the charger great majority on the market are halfwave rectifier formula charger, and only the route of pipe line is simple, but easily to battery overcharge, must the people during use for taking the time, equal belt discharge function not simultaneously, because of nickel-cadmium cell must discharge, so be unfavorable for prolonging battery useful life.
The purpose of this utility model just is to overcome above-mentioned shortcoming, designs according to discharge, the charging characteristic curve of rechargable battery, and adopts the constant current source charging mode, carries out " three steps " according to battery request and is discharged to 2.0v earlier and stops (two joint series connection); Change normal charge again over to; Charge to 90% and change trickle charge again over to, thereby a kind of global function charger of new generation is provided.
In order to realize above-mentioned task, the way that the utility model solves is: represented battery discharge respectively, charged and near three kinds of operating states such as full values by red, green, yellow Tricolor LED, and change automatically, it is further perfect to make it product function.
Owing to " conversion automatically " in the such scheme of the full-automatic charger that the utlity model has the three-color LED indication all adopts reference voltage to guarantee, so reliable operation is active in one's movements.Discharger is 2.0V because of reference voltage is set in the machine, guarantees that battery discharge stops to 2.0V, so but double as battery capacity measuring device, as test cell capacity and differentiation fake battery.
The full-automatic charger that the utlity model has the three-color LED indication has reliable operation, shows characteristics such as eye-catching, easy to use.
Below in conjunction with accompanying drawing and example the full-automatic charger that the utlity model has the three-color LED indication is described in further detail.
Fig. 1 is the electrical schematic diagram that the utlity model has the full-automatic charger of three-color LED indication.
The utlity model has the full-automatic charger that three-color LED is indicated referring to Fig. 1, it comprises triode VT 1Be discharge tube, VT 2Be constant current tube, VT 3Be charging, the discharge circuit of trickle pipe, wherein amplifier A 1With A 2And VD 1Form R-S trigger, A 3With R 16And VD 3Deng the single limit of composition voltage comparator, A 4Form voltage follower, and IC 1Form a reference source.Below each part mentioned above is described one by one:
Power supply Vi+7V end respectively with amplifier A 2" 4 " end, LED 3Anode, R 12An end, toggle switch S 2" cutter " position of-a, R 13An end, C 1Anode, IC 1" 3 " end connect LED 3Negative electrode respectively with R 10An end, triode VT 2Base stage connect; R 12The other end respectively with R 11An end, triode VT 2Emitter connect; Toggle switch S 2" 2 " position and the resistance R of-a 11The other end connect; R 13The other end respectively with diode VD 2Positive pole, triode VT 3Base stage connect; C 1Negative pole connect with ground; IC 1" 1 " end and LED 1Anode, R 1An end connect; I C" 2 " end and R 1The other end, R 2An end, C 2Positive pole connect; LED 1Negative electrode and the negative pole of C2 be communicated with ground simultaneously.
Amplifier A 1" 2 " end with amplifier A 2" 7 " end, the end of R8 connect; Amplifier A 1" 3 " end with button S 1An end, R 2The other end, R 3An end, C 4Positive pole connect button S 1Other end ground connection; Amplifier A 1" 1 " end respectively with resistance R 10The other end, diode VD 1Negative pole connect; Diode VD 1Positive pole respectively with resistance R 7An end, C 3An end, amplifier A 2" 5 " end connect; C 3The other end connect with ground.
Amplifier A 3" 10 " end respectively with resistance R 16An end, R 17An end connect; R 16The other end and diode VD 3The anodal connection; Amplifier A 3" 9 " end with amplifier A 4" 14 " end and " 13 " hold and to be connected; Amplifier A 3" 8 " end respectively with diode VD 3Negative pole, VD 2Negative pole connect; Amplifier A 4" 12 " end and an end, the resistance R of C5 15An end, R 14An end connect; C 5The other end and resistance R 15The other end connect with ground.
Triode VT 1Collector electrode respectively with triode VT 3Emitter, R 14The other end, LED 4Negative electrode, R 7The other end and "+" utmost point of battery Ec connect; VT 3Collector electrode and VT 2Collector electrode, resistance R 9One end connects; R 9The other end and LED 4Negative electrode connect.
Triode VT 1Base stage and LED 2Anode, R 8The other end connect; LED 2Minus earth; VT 1Expelling plate and resistance R 6An end connect; R 6Other end ground connection; Battery E C"-" utmost point ground connection.
Resistance R 17The other end and toggle switch S 2" cutter " position of-b connects toggle switch S 2" 1 " position and the R of-b 3The other end, R 4An end connect; S 2" 2 " position and the R of-b 4The other end, R 5An end connect; R 5The other end and C 4Negative terminal ground connection respectively.
Described amplifier A 1With A 2And VD 1The R-S trigger, the A that form 3With R 16And VD 3Deng the single limit of composition comparator, A 4The four high guaily unit circuit of forming voltage follower adopts for example four-operational amplifier of LM324.
Described IC 1Reference source circuit can adopt the LM317 three terminal integrated voltage stabilizer.
Next the full-automatic charger course of work that the utlity model has the three-color LED indication is described:
Rechargeable battery E CThe battery compartment of packing into clicks push-button switch S 1At this moment, by amplifier A 1, A 2And VD 1On the R-S trigger of forming, its output " 1 " is high level, discharge tube VT with output " 7 " 1Conducting, battery passes through VT 1Begin discharge, LED 2Red light emitting diodes is lighted simultaneously, and indication circuit enters discharge condition.As battery E CWhen discharge is brought down below 2.0V, because of voltage comparator A 1" 3 " end and A 2" 6 " end all meet reference voltage 2.0V, so R-S trigger upset, its output " 1 " and output " 7 " all become low level.At this moment, discharge tube VT 1End galvanostat VT 2Conducting is because trickle pipe VT 3So conducting is S 2-a for constant current is 130mA, charges for nickel-cadmium cell on " 1 " position; On " 2 " position,, charge for Ni-MH battery for constant current is 220mA.Simultaneously, constant current tube VT 2LED on the base stage 3Green LED is lighted, and indication circuit enters charged state automatically.Constant current begins to E CCharging is charged to when reaching setting voltage value, here S always 2For 1.60V is the nickel-cadmium cell final voltage, the 1.50V on " 2 " position is the Ni-MH battery final voltage to-b on " 1 " position.By amplifier A 3Comprise R 16, VD 2, VD 3Become low level by high level, VT Deng single limit comparator of forming 3End, constant current is through R 9, LED 4Conversion is into about the trickle charge of 15mA.At this moment, LED 4Yellow light-emitting diode is lighted, and indication circuit enters the trickle charge state automatically.
The above only is an example that the utlity model has the full-automatic charger of three-color LED indication, also can change components and parts or flexible rechargeable battery joint number etc. according to above design principle and all belong to this practical scope.

Claims (3)

1, a kind of full-automatic charger with three-color LED indication, it comprises that triode VT1 is discharge tube, VT 2Be constant current tube and VT 3Be the charge-discharge circuit of trickle pipe, wherein amplifier A 1With A 2And VD 1The R-S trigger, the A that form 3With R 16And VD 3Deng the single limit voltage comparator, the A that form 4The voltage follower and the IC that form 1Form a reference source, it is characterized in that: power supply Vi+7V end respectively with amplifier A 2" 4 " end, LED 3Anode, R 12An end, toggle switch S 2" cutter " position of-a, R 13An end, C 1Anode, IC 1" 3 " end connect LED 3Negative electrode respectively with R 10An end, triode VT 2Base stage connect; R 12The other end respectively with R 11An end, triode VT 2Emitter connect; Toggle switch S 2" 2 " position and the resistance R of-a 11The other end connect; R 13The other end respectively with diode VD 2Positive pole, triode VT 3Base stage connect; C 1Negative pole connect with ground; IC 1" 1 " end and LED 1Anode, R 1An end connect; IC 1" 2 " end and R 1The other end, R 2An end, C 2Positive pole connect; LED 1Negative electrode and the negative pole of C2 be communicated with ground simultaneously.Amplifier A 1" 2 " end with amplifier A 2" 7 " end, the end of R8 connect; Amplifier A 1" 3 " end with button S 1An end, R 2The other end, R 3An end, C 4Positive pole connect button S 1Other end ground connection; Amplifier A 1" 1 " end respectively with resistance R 10The other end, diode VD 1Negative pole connect; Diode VD 1Positive pole respectively with resistance R 7An end, C 3An end, amplifier A 2" 5 " end connect; C 3The other end connect with ground.Amplifier A 3" 10 " end respectively with resistance R 16An end, R 17An end connect; R 16The other end and diode VD 3The anodal connection; Amplifier A 3" 9 " end with amplifier A 4" 14 " end and " 13 " hold and to be connected; Amplifier A 3" 8 " end respectively with diode VD 3Negative pole, VD 2Negative pole connect; Amplifier A 4" 12 " end and an end, the resistance R of C5 15An end, R 14An end connect; C 5The other end and resistance R 15The other end connect with ground.Triode VT 1Collector electrode respectively with triode VT 3Emitter, R 14The other end, LED 4Negative electrode, R 7The other end and "+" utmost point of battery Ec connect; VT 3Collector electrode and VT 2Collector electrode, resistance R 9One end connects; R 9The other end and LED 4Negative electrode connect.Triode VT 1Base stage and LED 2Anode, R 8The other end connect; LED 2Minus earth; VT 1Expelling plate and resistance R 6An end connect; R 6Other end ground connection; Battery E C" one " utmost point ground connection.Resistance R 17The other end and toggle switch S 2" cutter " position of-b connects toggle switch S 2" 1 " position and the R of-b 3The other end, R 4An end connect; S 2" 2 " position and the R of-b 4The other end, R 5An end connect; R 5The other end and C 4Negative terminal ground connection respectively.
2, the full-automatic charger with three-color LED indication as claimed in claim 1 is characterized in that: A 1, A 2, A 3, A 4Be four-operational amplifier, model is LM324.
3, the full-automatic charger with three-color LED indication as claimed in claim 1 is characterized in that: IC 1Be three-terminal voltage regulator, model is LM317.
CN 02216585 2002-04-04 2002-04-04 Full autoamtic charger with three colour LED indication Expired - Fee Related CN2538088Y (en)

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CN 02216585 CN2538088Y (en) 2002-04-04 2002-04-04 Full autoamtic charger with three colour LED indication

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Application Number Priority Date Filing Date Title
CN 02216585 CN2538088Y (en) 2002-04-04 2002-04-04 Full autoamtic charger with three colour LED indication

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CN2538088Y true CN2538088Y (en) 2003-02-26

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1824556B (en) * 2005-02-22 2011-03-09 本田技研工业株式会社 Control mechanism and display for hybrid vehicle
CN103063954A (en) * 2012-12-26 2013-04-24 山东电力集团公司菏泽供电公司 Multi-sensor array monitoring system on states of power equipment
CN103502828A (en) * 2011-04-01 2014-01-08 英特尔公司 Method and apparatus for measuring charging current
CN109361248A (en) * 2018-10-30 2019-02-19 东莞成乐电子有限公司 A kind of auto charge and discharge circuit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1824556B (en) * 2005-02-22 2011-03-09 本田技研工业株式会社 Control mechanism and display for hybrid vehicle
CN103502828A (en) * 2011-04-01 2014-01-08 英特尔公司 Method and apparatus for measuring charging current
CN103502828B (en) * 2011-04-01 2016-07-06 英特尔公司 For the method and apparatus measuring charging current
CN103063954A (en) * 2012-12-26 2013-04-24 山东电力集团公司菏泽供电公司 Multi-sensor array monitoring system on states of power equipment
CN109361248A (en) * 2018-10-30 2019-02-19 东莞成乐电子有限公司 A kind of auto charge and discharge circuit
CN109361248B (en) * 2018-10-30 2021-08-10 东莞成乐电子有限公司 Automatic charging and discharging circuit

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