Wannien 101v0 Power Supply Schematic Verified May 2026

This article breaks down the architecture, key components, and troubleshooting steps for the Wannien 101V0. 1. Circuit Overview

A bridge rectifier converts AC to DC, which is then smoothed by a large electrolytic "bulk" capacitor. wannien 101v0 power supply schematic verified

If the output voltage is "pumping" (fluctuating rapidly), the issue is often a faulty optocoupler or a dried-out capacitor on the PWM controller's VCC pin. 4. Safety Warning This article breaks down the architecture, key components,

High-frequency AC from the transformer is rectified by Schottky diodes and filtered into clean DC. 2. Key Components to Identify If the output voltage is "pumping" (fluctuating rapidly),

Test the main input fuse for continuity. If it's blown, check the bridge rectifier and MOSFET for shorts before replacing it.

Usually mounted on a heatsink. Check for shorts between the Drain and Source pins.

Works with the optocoupler to monitor output precision. 3. Verified Troubleshooting Steps