Car Battery Charger 2

Published:2013/7/17 21:49:00 Author:muriel | Keyword: Car Battery Charger | From:SeekIC

This charger will quickly and easily charge most any lead acid battery. The charger delivers full current until the current drawn by the battery falls to 150 mA. At this time, a lower voltage is applied to finish off and keep from over charging. When the battery is fully charged, the circuit switches off and lights a LED, telling you that the cycle has finished. PartsR1 500 Ohm 1/4 W ResistorR2 3K 1/4 W ResistorR3 1K 1/4 W ResistorR4 15 Ohm 1/4 W ResistorR5 230 Ohm 1/4 W ResistorR6 15K 1/4 W ResistorR7 0.2 Ohm 10 W ResistorC1 0.1uF 25V Ceramic CapacitorC2 1uF 25V Electrolytic CapacitorC31000pF 25V Ceramic CapacitorD1 1N457 DiodeQ1 2N2905 PNP TransistorU1 LM350 RegulatorU2 LM301A Op AmpS1Normally Open Push Button SwitchMISC Wire, Board, Heatsink For U1, Case, Binding Posts or Alligator Clips For Output Notes1. The circuit was meant to be powered by a power supply, which is why there is no transformer, rectifier, or filter capacitors on the schematic. There is no reason why you cannot add these.2. A heatsink will be needed for U1.3. To use the circuit, hook it up to a power supply/plug it in. Then, connect the battery to be charged to the output terminals. All you have to do now is push S1 (the Start switch), and wait for the circuit to finish.4. If you want to use the charger without having to provide an external power supply, use the following circuit.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Power_Supply_Circuit/Car_Battery_Charger_2.html

Print this Page | Comments | Reading(3)