Voltage Feedback Loop .......................................................................12
Voltage Loop Compensation...........................................................14
Design Tips ..........................................................................................16
IC Decoupling Capacitor .................................................................16
Inductor Design...............................................................................16
Gate Drive Considerations..............................................................17
PCB Layout.....................................................................................17
Additional Noise Suppression Considerations ................................18
This Application Note describes the design methodology of a Continuous Conduction Mode
Power Factor Correction circuit utilizing a boost converter and featuring the IR1150S PFC IC. The
IR1150 is based on International Rectifier’s proprietary “One Cycle Control” technique for PFC
converter control. This application note presents a complete, step-by-step, design procedure
including converter specifications and necessary design tradeoffs.
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AN-1077
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