Wannien 101v0 Power Supply Schematic 90%

Disclaimer: Power supplies contain lethal voltages in the primary capacitors (320V DC). Discharge them with a resistor before touching. Safety first.

Posted by: The Bench Wizard Reading time: 4 minutes wannien 101v0 power supply schematic

Let’s crack this open (figuratively and literally). Based on user reports and common grey-label manufacturing, the 101V0 is typically a 12V or 24V DC switching power supply , usually rated between 100W and 150W. It is a close relative of the famous Mean Well S-100-12 or S-150-12 series. Disclaimer: Power supplies contain lethal voltages in the

Drop it in the comments. If you show me the top and bottom of the PCB, I can point you to the exact resistor values. Posted by: The Bench Wizard Reading time: 4

Manufacturers like Wannien often buy OEM PCBs (Printed Circuit Boards) and put them in a silver perforated metal case. The "101V0" is likely a batch code or internal revision number, not a unique design. Forget searching for Wannien 101v0 schematic.pdf . Instead, open the unit and look for the PWM Controller IC .

If it just has bulging caps or a blown fuse: Use the TL494 reference design from the Texas Instruments datasheet as your schematic. Every pin on that IC will match your Wannien board.

If you’ve landed here, you are likely staring at a dead power supply. Maybe it’s from a LED sign, a CCTV camera bank, or a 3D printer. The bad news? Official schematics for the "Wannien" brand are almost impossible to find. The good news? The 101V0 is almost certainly a clone of a very common topology.