Simple and fully automatic charger circuit

Published:2011/11/13 20:10:00 Author:May | Keyword: Simple, fully automatic, charger | From:SeekIC

As shown in diagram 4-1, voltage regulator tube VD2 is cut off when the voltage of charged storage battery is lower than desired value. Voltage regulator tube VD2 is turning on only when the voltage on storage battery reaches to desired value. Triode VT can be turned on by adjusting resistor RP. Relay K1 is pulled in, thereby K1-1, K1-2are cut off. At this time LED1 (green) is turning off, LED2 (red) is lit (LED1, LED2are lit when it is starting up) to indicate chargebeing end. Needed voltage value depends on the value of voltage regulator tube. Electrolytic capacitor C is used for filtering pulse current voltage on relay after half wave rectifying. If you do not use C, relay may generate continuous action. Relay can not generate continuous action by adjusting RP. R2 is current limiting resistor of VD2. It can not too big or too small.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Power_Supply_Circuit/Simple_and_fully_automatic_charger_circuit.html

Print this Page | Comments | Reading(3)