Battery Charger

MAXl811-lithium battery charging integrated circuit diagram

Published:2011/5/6 21:42:00 Author:Nicole | Keyword: lithium battery, charging

MAXl811 is a lithium battery charging integrated circuit, the charger which is composed of this IC is widely used in MP3 player, digital camera and PDA and some portable instruments. 1. pin function and data MAXl811 integrated circuit adopts 8-foot dual in-line package, the pin function and data of this integrated circuit is shown in the table1. The table1 is the pin function and data of MAXl811 integrated circuit 2. typical application circuit MAXl811 typical application circuit is shown in the figure1. The IC has two set terminals, when SELV is set to high level, the final charging voltage is 4.2V, when it is set to low level, the voltage is 4.1V. The other set terminal is SELI, when it is set to high level, the charging current is 500MA, when it is low level, the current is 100MA. The figure1 is the typical application circuit of MAXl811 integrated block   (View)

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Portable multi-functional battery charger circuit

Published:2011/5/7 12:36:00 Author:John | Keyword: Portable battery charger, multi-functional battery charger

The shown portable multi-functional battery charger circuit is the circuit for a multi-functional Ni-Cd battery charger. It can be used for recharging special nickel-cadmium rechargeable batteries on portable radio transmitters. It can also be used for recharging the standard nickel-cadmium batteries 5, 2 or 4. When the battery capacity reaches saturation during the charging, it automatically terminates the charge, prevents the battery overcharge and has the battery capacity test display.   (View)

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Lithium battery fast charging circuit

Published:2011/5/7 12:38:00 Author:John | Keyword: Lithium charger, fast charging circuit

Lithium battery fast charging circuit is shown above.   (View)

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Automatic control circuit for generator starting battery

Published:2011/5/7 12:47:00 Author:John | Keyword: Automatic control circuit, generator, battery

Automatic control circuit for generator starting battery is shown above.   (View)

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automatic Ni-Cd battery charger circuit

Published:2011/5/7 12:49:00 Author:John | Keyword: Ni-Cd battery charger

Automatic Ni-Cd battery charger circuit is shown above.   (View)

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0.1C5A standard nickel-cadmium battery charger circuit

Published:2011/5/7 12:40:00 Author:John | Keyword: 0.1C5A standard nickel-cadmium battery charger circuit

0.1C5A standard nickel-cadmium battery charger circuit is shown above.   (View)

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Nickel-cadmium battery charge protection circuit diagram

Published:2011/4/29 4:20:00 Author:Rebekka | Keyword: Nickel-cadmium battery, charge protection

Nickel-cadmium rechargeable battery protection circuit is shown as below. The charging part is composed of D1, D2, R2 and BG1. The charge protection circuit is composed of BG2 and R1. When the nickel-cadmium batteries are charging, light emitting diode LED will be lighten. It indicates charging is normal. If the battery polarity is reversed, base BG2 will be negative potential, BG2 stops, BG1 the base potential will be raised, BG1 stops. It will not charge for nickel-cadmium battery, LED will not lit. It indicates the battery polarity is reversal.   (View)

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Lithium ion battery charging circuit diagram

Published:2011/4/29 4:03:00 Author:Rebekka | Keyword: Lithium ion battery charging

Lithium-ion battery charging circuit is shown as above. When it starts to charge. The battery voltage is below 8.4V, IC1's output has no output. Q2 off, LM317 work in the constant current output. When the battery voltage is increased to 8.4V, Q2 turns on, Q2 controls ADJ-side, so that the output voltage of IC2 significant declines and make the charge current maintain a very small value and the pool in a floating state.   (View)

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Hafeisaima car charging system circuit diagram

Published:2011/4/28 1:38:00 Author:Rebekka | Keyword: Hafeisaima car charging system

Hafeisaima car charging system circuit diagram is shown as above.   (View)

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Simple nickel-cadmium battery charger

Published:2011/4/25 23:02:00 Author:May | Keyword: Simple, nickel-cadmium, battery charger

The circuit is shown in diagram 2-2. It consists of three terminal regulator 708 and four loads current source composed of triode VT2~VT5. VT1 and corresponding adjustable resistance RRP1, RP2 and switching tube S is used to control each roads charging current. When S is placed on position 1, charging current of each roads is 90mA; when S placed 2 and 3, it can get 100mA~300mA charging current by adjusting RP1 and RP2. If it adopts current above 200mA to charge, each triode should add radiator. Light emitting diode VD5~VD8 in diagram 2-2 is used as charge indicator. Whole circuit can supply by 220V mains, it also can supply by 12V storage battery. Charge time can count according to the following formula: Charging time(h)=Nickel-cadmium battery capacity(mAh)/charge current(mA) In actual use, charging time can proper extended.   (View)

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Battery charging NC constant current source circuit diagram

Published:2011/4/26 3:02:00 Author:Rebekka | Keyword: Battery charging, NC constant current source

It is a numerical control constant current source designed for the charge of battery. D / A converter outputs a voltage to the bottom of the op amp inverting input, the circuit current I = Uad / sampling resistor, the two PORT are used to access the battery + and - poles. The magnification of the amplifier circuit is 1/4. It is used for measuring battery voltage. The 2 adjusted tubes are 3dd13 and 3dd15.   (View)

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36V electric car battery charger circuit diagram

Published:2011/4/26 2:17:00 Author:Rebekka | Keyword: electric car , battery charger

36V electric car battery charger circuit diagram is shown as above.   (View)

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The Battery Charging Application Circuit composed of Wll7／W217／W317

Published:2011/4/22 1:51:00 Author:Crystal Liu | Keyword: battery application, circuit

Thefigure shows a battery application circuit consists of three terminal control integrated circuit.Figure (a) shows a circuit of charger with constant pressure and Current limiting,among them the Rs is used to limit current,Lower initial charge rate;Figure(b) shows a charger circuit of limiting current,among them ,the resistance R3 and thetransistorare used to limit maximum charge current.   (View)

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Intelligent lead-acid battery charger

Published:2011/4/22 6:40:00 Author:May | Keyword: Intelligent, lead-acid battery, charger

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Fast Ni-MH battery charger circuit diagram

Published:2011/4/25 2:15:00 Author:May | Keyword: Fast, Ni-MH battery charger

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Lithium battery charger circuit

Published:2011/4/25 2:17:00 Author:May | Keyword: Lithium battery charger

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Storage battery charger using capacitor to limit current and drop voltage

Published:2011/4/21 6:24:00 Author:May | Keyword: Storage battery charger, capacitor

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Storage battery automatic charger principle diagram

Published:2011/4/21 6:26:00 Author:May | Keyword: Storage battery, automatic charger

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Solar battery charging circuit

Published:2011/4/21 6:27:00 Author:May | Keyword: Solar battery, charging

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A kind of full automatic charger circuit

Published:2011/4/19 4:25:00 Author:May | Keyword: full automatic charger

working principleDiagram 4-27 is the principle diagram of this charger. The voltage of LM339's pin 5 V5=6V. When the battery voltage E is less than 12V, V4 is less than 6V. LM339's pin 2 outputs high level. It can let 9013 saturation. 3AD30 is on amplified state. The measured value is 300mA when using heavy current to charge. When E≥12V, V5≥6V. LM339's pin 2 output low level. 9013 and 3AD30 is cut off. It adopts 40mA low current to charge to the battery. The curved line of measured charge current is shown in diagram 4-28.   (View)

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