Battery Backup Supply

February 16, 2019 delabs 0

This is a 9V power supply which will work even on power failure. It uses a rechargeable battery and regulators. A transformer with 15-0-15 AC […]

Dual Polarity Power Supply

January 13, 2019 delabs 0

This supply gives both positive and negative outputs. Appropriate Fuses should be used to protect from fire hazard and overload of transformer. Voltage Regulators LM7812 […]