UC3852 Datasheet - UNITRODE

UC3852, High Power-Factor Preregulator

High Power-Factor Preregulator UC1852 UC2852 UC3852 .
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.

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