[ AC Input ] ---> [ EMI Filter & Transient Protection ] ---> [ Bridge Rectifier & Bulk Cap ] | [ Secondary Outputs ] <-- [ Rectification / Filtering ] <-- [ High-Freq Transformer ] <+ | | +-----------> [ Optical Feedback Loop ] ------------> [ PWM / PFC Controller ] 1. EMI Filtering and Transient Protection
Utilizes a single-ended forward converter topology or a half-bridge design controlled by a Pulse Width Modulation (PWM) oscillator chip. High-power MOSFETs attached to a dedicated primary heatsink toggle the high-voltage DC across the primary winding of the high-frequency step-down transformer. D10-240p1a Schematic