300W Off-line Power Factor Correction (PFC) Boost Converter


The circuit presented here is a 300W off-line power factor correction (PFC) boost converter providing a nominal regulated output voltage of 375V @ 0.8A of load current. The project accommodates an input voltage range of 85V AC to 265VAC and uses average current mode control at a fixed programmable switching frequency of 116KHz. The project is based on UCCC28180 PFC controller module which incorporates a wide range of protection features to ensure safe system operation. The controller operates under average current mode control at a fixed programmable switching frequency of 116 kHz. Simple external current and voltage loop compensation, along with advanced protection features, make this controller ideal for server and desktop power supplies, industrial power supplies, and white goods. The project includes onboard fuse for short circuit protection, EMI filter, NTC to control inrush current, Bridge rectifier for DC rectification, high voltage/current MOSFET for switching, switching diode, high current inductor, high-value DC bus filter capacitor on the output. This project requires UCC28128 based controller board that can be mounted vertically on the PCB socket.

300W Off-line Power Factor Correction (PFC) Boost Converter – [Link]



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