Farnell element14 – Single-stage flyback and boundary-mode PFC controller (FL7930CMX)Jun 28 2012 - Semiconductors [More Semiconductors Articles]
Available now from Farnell element14, Fairchild’s FL7930CMX is an active power factor correction (PFC) controller for low-to high-power lumens applications that operate in critical conduction mode (CRM).
The device uses a voltage-mode PWM that compares an internal ramp signal with the error amplifier output to generate a MOSFET turn-off signal. Because the voltage-mode CRM PFC controller does not need rectified AC line voltage information, it saves the power loss of an input voltage sensing network necessary for a current-mode CRM PFC controller, says the company.Electropages - Electronics Components News, From Leading Electronics Distributors. More news from Farnell element14