Schematics > Power > Simple Car Battery Charger
Simple Car Battery Charger
This very simple circuit uses a transformer ,two diodes , a capacitor and an
ammeter.
To charge a battery just connect the + and - terminals of the circuit to the
corresponding terminals of the battery.
When the battery is not charged, the ammeter reading shows 1-3 amps.
When the battery is fully charged the ammeter reads Zero or nearly zero, after
which the battery should be removed from the
charger.
The circuit is a full wave rectifier using 2 diodes for rectification. The
capacitor is used for smoothing.
I think the circuit works fine without the capacitor since the battery itself
acts a BIG capacitor. But when you are using the
circuit to supply 12V (as a battery eliminator) the capacitor needs to be
present.
Care should be taken NOT to reverse the + and - terminals while connecting it to
the battery.
Title: Simple Car Battery Charger
Source: www.electronic-circuits-diagrams.com
Published on: 2005-02-01
Reads: 570
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