Hybrid One-Cycle Controller for Boost PFC Rectifier

Discontinuous conduction mode and continuous conduction mode in the boost power factor controller rectifier design for constant-frequency operation are usually focused on separately and consider distinct controllers and respective tradeoffs. This paper proposes a hybrid one-cycle controller that presents a smooth mode transition inside one mains half-cycle. One-cycle control technique presents advantages such as operation with unity power factor (PF), large-signal stability, noise immunity, low cost, and simplicity. The proposed strategy allows operation in a large power range.