Wannien 101v0 Power Supply Schematic Exclusive

Wannien E88653 (101V0) is a power supply board frequently found in various monitor models and industrial equipment. While "exclusive" schematics are often proprietary, technical guides indicate that this board follows standard Switch-Mode Power Supply (SMPS) principles. Key Components & Circuitry

Scenario B: Output is 24V, but Loud Hissing / Overheating

• Refer to the feedback loop (IC2/LM358). The schematic shows a Type-2 compensation network (C25, R34). If C25 leaks DC, the optocoupler (PC817) overdrives the primary, causing audible squealing.
• The Fix: Replace C25 (22uF/50V) on the secondary side.

Report: Analysis of the "Wannien 101V0" Power Supply wannien 101v0 power supply schematic exclusive

Why the "Exclusive" Schematic Matters

Most generic power supplies (Mean Well, Delta, etc.) have readily available datasheets. The Wannien 101v0 is different. It is often sold as an OEM component inside larger machinery, meaning the end-user rarely receives a schematic. This "exclusive" analysis is derived from reverse engineering a pristine unit, tracing the copper paths, and mapping the SMD components. Wannien E88653 (101V0) is a power supply board

Safety Features: Over-voltage protection (OVP) and short-circuit protection (SCP). 🛠️ Decoding the Schematic: Main Sections Refer to the feedback loop (IC2/LM358)

3. The Transformer Winding Details (T1)

The schematic shows a unique winding ratio specific to the 101v0: