UC3855B preregulator equivalent, high performance power factor preregulator.
* Controls Boost PWM to Near Unity
Power Factor
* Fixed Frequency Average Current Mode Control Minimizes Line Current Distortion
* Built-in Active Snubber (ZV.
The UC3855A/B also features a single quadrant multiplier, squarer, and divider circuit which provides the programming s.
The UC3855A/B provides all the control features necessary for high power, high frequency PFC boost converters. The average current mode control method allows for stable, low distortion AC line current programming without the need for slope compensati.
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