UCC38502 controller equivalent, bicmos pfc/pwm combination controller.
D Combines PFC and Downstream Converter
Controls
D Controls Boost Preregulator to Near-Unity
Power Factor
D Accurate Power Limiting D Improved Feedforward Line Regulation.
The UCC2850x family provides all of the control functions necessary for an active power-factorcorrected preregulator and a second-stage dc-to- dc converter. The controller achieves near-unity power factor by shaping the ac input line current waveform.
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