Power amplifier regulated power supply circuit - power supply circuit - Circuit Diagram

The proposed power supply design for a 100W V-MOSFET amplifier takes the form shown above. This design features a segregated power supply system, which includes separate stages for power, control, preamplification, and protection. Users have the flexibility to either suppress certain sections or add individual power supplies for each channel, ensuring complete independence between channels. For those who do not require the preamplifier or protection circuits, these sections can be bypassed or removed, depending on the application.

Output Voltages for the Power Supply

+V1 = +60V, -V1 = -60V +V2 = +12V, -V2 = -12V +V3 = +65V, -V3 = -65V

• Protection Circuit
• 100W V-MOSFET Power Amplifier

Component List

C1-C4 = 15,000μF, 100V C15 = 33nF, 630V S1 = 2x2 Switch, 250V/10A C5-C8 = 2,200μF, 25V BR1 = Bridge Rectifier, 250V, 25A IC1 = 7812 IC2 = 7912 C6-C9 = 100nF, 100V BR2 = Bridge Rectifier, 250V, 3A T1 = 220V / 2x43V AC - 250VA / 2x15V AC - 20VA / 2x46V AC - 40VA C7-C10 = 47μF, 25V BR3 = Bridge Rectifier, 250V, 3A C11-C14 = 2,200μF, 100V F1 = Fuse, 2A Slow Blow