S36012 Power Supply Circuit Diagram |link| Page

Two large electrolytic capacitors (typically 200V 680µF) smooth the DC. A 115V/230V selector switch determines if these capacitors act in series or as a voltage doubler. 2. The PWM Controller (The Brain)

Before diving into the schematic, let’s define the module. The S36012 is typically a DC-DC step-down (buck) converter with the following specifications: s36012 power supply circuit diagram