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R2A20113A power factor correction controller

Posted: 29 Dec 2011     Print Version  Bookmark and Share

Keywords:power factor correction  controller  critical conduction mode 

Renesas Electronics' R2A20113A is the active power factor correction (PFC) controller that operates in the critical conduction mode (CRM).

The R2A20113A is the voltage mode CRM, such that the Power MOSFET controlled by this IC is turned on when the current of the boost inductor reaches zero and also controlled to keep ON time of the Power MOSFET constant. So, the peak current of the boost inductor follows the input voltage waveform. The voltage mode CRM PFC controller does not need the input voltage sense line. So, the power loss of the system can be reduced.

View the PDF document for more information.

Originally published by Renesas Electronics at as "R2A20113A: Application Note".

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