Wannien 101v0 Power Supply Schematic Verified |best| -

AC INPUT: Live → Fuse (5A/250V) → Switch → Transformer Primary AC INPUT: Neutral → NTC Thermistor (5D-11) → Transformer Primary SECONDARY (Low Voltage Side): Transformer Secondary (0-12V-24V) → Bridge Rectifier (KBU810) → Capacitor C1 (4700µF/50V) → +V_Raw

This article provides the verified schematic details, explains the key components, and offers a troubleshooting guide based on real-world testing. Before we dive into the circuitry, let's address the elephant in the room. Why should you trust a "verified" schematic from a third-party source? wannien 101v0 power supply schematic verified

If you are reading this, you have likely experienced the frustration of a blown capacitor, a failed transistor, or a mysterious short circuit. You have scoured forums, translated Chinese datasheets, and found nothing but dead ends. The good news is that after extensive reverse engineering and cross-referencing, AC INPUT: Live → Fuse (5A/250V) → Switch

CURRENT SENSING: Output Negative Terminal → Shunt Resistor (0.1Ω/5W) → Load_Negative Shunt Voltage → Op-Amp U1B (Pin5/Pin6) → Current Pot Adjustment If you are reading this, you have likely

In the world of budget-friendly benchtop power supplies, the Wannien 101V0 has carved out a unique niche. Known for its compact size, adjustable voltage range, and surprisingly robust build quality for its price point, it has become a staple for hobbyists repairing smartphones, testing LEDs, or powering small circuits. However, like many mass-produced units, the Wannien 101V0 suffers from a common plague: a lack of official documentation.

The clone electronics market is rife with misinformation. Four different "6060" or "3005" power supplies can look identical but have completely different feedback loops, transformer windings, or op-amp configurations. A generic schematic might get you 80% of the way, but it will leave you chasing a phantom fault for hours.

CONTROL CIRCUIT (LM324): +5V_Ref → Voltage Pot (B10k) → Op-Amp U1A (Pin3) Output Voltage (Divider: R1=10k, R2=10k) → Op-Amp U1A (Pin2) Op-Amp U1A Output (Pin1) → Diode D1 (1N4148) → Optocoupler (PC817)