S36012 Power Supply Circuit Diagram Jun 2026

The journey begins at the AC input terminals. Mains voltage (110V or 220V) is first passed through a fuse and an inrush current limiter (typically a negative temperature coefficient, or NTC, thermistor). The primary component at this stage is the , which is crucial for both legal compliance and the stable operation of other equipment. This filter, composed of common-mode chokes and X/Y capacitors, suppresses high-frequency noise generated by the power supply's switching process from being conducted back onto the AC mains line. A key feature of this power supply is a small slide switch that allows the user to select between two input voltage ranges: 90-132VAC for 115V mains and 180-264VAC for 230V mains, ensuring global compatibility.

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3. Pulse Width Modulation (PWM) Controller & Auxiliary Start Circuit The journey begins at the AC input terminals