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This paper describes a simple control architecture realized using hybrid feedforward control for a power factor correction (PFC) rectifier based on a four-switch non-inverting buck-boost converter. The converter operates in continuous conduction mode, with smooth transitions between the buck and the boost operations across a line-cycle. To implement the PFC functionality, the controller computes the...
This paper presents general considerations for synthesis of hybrid feedforward control architectures for pulsewidth modulated (PWM) switching converters, where selected converter variables are sensed and utilized to determine the duty cycle to achieve a control objective based on the converter open-loop characteristics. Compared to standard feedback control techniques, advantages may include simpler...
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