Loublet Schematic

This is the simple schema diagram of Dual Voltage Power Supply. It is used for Misc… application. This schema is called regulated power supply. For this reason the main component of this schema is Regulator IC. It also needs few components to built. The regulator 7812 is the positive voltage regulator and 7912 is the negative voltage regulator.

Simple Dual Voltage Power Supply 12 Volt Circuit Diagram

You can also use 7809 for 9 volt positive power supply and 7909 for negative voltage power supply. It regulates voltage from 24Volt to 12 Volt (DC). The transformer input is 110Volt to 220Volt (AC) and the output must be between 12Volt to 24Volt (AC) and current must be 500mA. In this schema some capacitors are used as a filter for removing repole.