About this document
Automatic 12V Battery Charger Circuit by ajith_b88 is a document available to read on EtoBox.
This circuit automatically charges 12V lead-acid batteries and shuts off the charging process once the battery is fully charged at 13.5V. It prevents overcharging so the charger can be unattended. When the battery voltage drops below 13.5V, charging turns back on. A step-down transformer provides 0-18V AC power that is rectified and regulated to charge the battery at 18V DC and power the circuit components at 9V DC. A voltage comparator IC monitors the battery voltage and switches a relay to disconnect the
- Author
- ajith_b88
- Language
- EN