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This document describes a simple self-oscillating switching power supply built with discrete components and without an optocoupler or integrated circuit. It uses a single transistor as the power switch and derived voltage stabilization to regulate the output without direct sensing. The supply provides approximately 5W of power without a heatsink on the transistor or up to 12W with a heatsink. While regulation is less accurate than designs using an optocoupler, line regulation is surprisingly good for this t
- Author
- mohamed lamine elbiskri
- Language
- EN