A Passive Lossless Soft-Switching Snubber for Telecom Power Supplies
Abstract—At present the majority of power supplies or power converters use switch-mode technology. Higher switching frequencies allow reduction of the magnetic component sizes with PWM switching converters but cause higher switching losses and greater electro-magnetic interference. To reduce these switching losses active or passive soft-switching methods are used in various applications.This paper presents a passive lossless soft-switching snubber for telecom power supplies. Simulation results are given to demonstrate the validity and features of the snubber.
Index Terms—coupling inductor, electrolytic capacitors, Pulse Width Modulation (PWM), soft-switching, zero-current turn ON,zero-voltage turn OFF.
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International Journal for Trends in Technology & Engineering © 2015 IJTET JOURNAL