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The continuous conduction mode (CCM) boost power factor corrector (PFC) has the advantages of low current ripple and low electromagnetic interference. However, due to its high output voltage and CCM operation, the switching frequency will be limited by the reverse recovery loss. In order to achieve higher power density, the switching frequency must be increased. Therefore, the Gallium-Nitride high...
This paper presents a novel boost converter with a proposed tapped inductor ripple cancellation circuit. Based on the traditional methods, an extra LC branch, which consists of a capacitor and an inductor, is introduced in order to diminish the input current ripple. At the same time, the main inductor in the traditional boost converter can be transferred into the tapped inductor with the LC branch...
This paper proposes a boost converter with coupled inductors and a buck-boost type of active clamp. In the converter, the active-clamp circuit is used to eliminate the voltage spike that is induced by the trapped energy in the leakage inductor of the coupled inductors. The active switch in the converter can still sustain a proper duty ratio even under high step-up applications, reducing voltage and...
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