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The discontinuous current mode (DCM) flyback power factor correction (PFC) converter features zero-current turn-on for the switch, no reverse recovery in the secondary diode and constant frequency operation. However, due to DCM, the energy transfer does not cover the whole switching cycle, the peak and RMS values of the inductor current are large, which also occurs to the switch and diode. This increases...
An isolated power converter topology is presented which uses an integrated passive power-sharing network for equal brightness levels in parallel LED branches. Analyses of discontinuous conduction mode (DCM) and continuous conduction mode (CCM) of converter operation have been performed. The DCM operation shows an improved performance and allows a reduced size of the required transformers compared...
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