UC3852 Datasheet - UNITRODE

UC3852 - High Power-Factor Preregulator

The UC1852 provides a low-cost solution to active power-factor correction (PFC) for systems that would otherwise draw high peak current pulses from AC power lines. This circuit implements zero-current switched boost conversion, producing sinusoidal input currents with a minimum of external component.

UC3852 Features

* Low-Cost Power Factor Correction

* Power Factor Greater Than 0.99

* Few External Parts Required

* Controlled On-Time Boost PWM

* Zero-Current Switching

* Limited Peak Current

* Min and Max Frequency Limits

* Starting Current Less Than

UC3852-UNITRODE.pdf