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This study presents a novel digital double-loop control method, that is, inner current loop and outer voltage loop, for a single-stage isolated Cuk power factor correction (PFC) converter in continuous conduction mode (CCM). First, control law of current loop, consisting of a current term and a voltage term, is derived. Considering that inductance value of inductors varies with load change, an adaptive...
In this paper the nonlinear average current control for a DC-DC buck converter is presented in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM). The outer voltage control loop uses a PI controller. In the present control scheme, switch current is being sensed instead of inductor current. Sensing of the switch current instead of inductor current is particularly attractive...
In this paper the nonlinear average current control for a DC to DC buck converter is presented in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM). The outer voltage controller uses a PI controller. In this control scheme, switch current is being sensed instead of inductor current. Average of inductor current, output voltage with line and load regulation is being controlled...
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