Build Your Powerful 50V 3A Stabilized Power Supply Circuit

Description

Frequently, the need arises for a stable, precisely regulated power supply alongside a high, relatively elevated output voltage. These specifications fulfill our circuit’s requirements. This design is capable of delivering an output ranging from +40V to +60V at a current capacity of 3A, with concurrent stabilization. The materials utilized are straightforward, minimizing manufacturing complexities; careful attention to particular points is sufficient. 1] For output voltages smaller than +50V up to +40V, the Q1 component necessitates an adequately sized heatsink. 2] For output voltages exceeding +50V up to +70V, the stabilization performance is not optimal. Consequently, the ideal output voltage is considered to be between +45V and +60V. Within the circuit, a potentiometer RV1 is employed to adjust the output voltage between +40V and +70V; however, it may be replaced by two fixed resistors upon completion of the regulation, to achieve the desired level of precision. This adjustment is due to the gradual shift in output voltage, often reaching 3V, when the potentiometer is in use. WARNING!!! The positive output terminal is located at point [A], and the 0V terminal is at point [B]; these should never be connected to ground.

Circuit Diagram

Part List