Current sensorless solutions for PFC of boost converters with passivity-based and sliding mode control

In this paper current sensorless solutions for AC-DC boost converter Power Factor Control (PFC) have been presented. A Passivity-Based Control (PBC) and a Sliding Mode Control (SMC) with input voltage feedforward have been implemented to increase Power Factor (PF) and their performance has been compared. A robust current observer has been adopted in order to eliminate the need for expensive current sensors. The proposed solution has been numerically tested on a powerful software simulation platform.

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