A novel soft switched boost converter using a single switch

Abstract

Abstract-This paper proposes an alternate

A chaotic soft switching PWM Boost converter for EMI reduction

“…1, where the switch S 1 , the inductor L 1 , the diode D 3 and the capacitor C 2 form the main circuit of the Boost converter, and R represents a resistive load. The soft switching of S 1 , which was proposed in [33], is governed by the auxiliary circuit consisting of inductors L 2 and L 3 , diodes D 1 and D 2 , and capacitor C 1 . Usually, the inductances of L 2 and L 3 are much smaller than that of L 1 , and the capacitance of C 1 is much smaller than that of C 2 .…”

“…It is possible to classify the operations of the Boost converter into seven different modes based on the principle of soft switching. They are described briefly as follows (For details, please refer to [33]). According to [33], V out and i L1 are assumed as constants V 1 and I 1 , respectively, for modes 1 and 2, and V 2 and I 2 for modes 5 and 6, respectively, since i L1 is quite small during the modes 1, 2, 5 and 6.…”

Application of chaotic pulse width modulation control for suppressing electromagnetic interference in a half‐bridge converter

“…The application of chaos control to reducing EMI in DC–DC converters has been well investigated, including the system design, dynamics analysis, simulations and hardware implementations of chaotic pulse width modulation (PWM) in DC–DC converters [6–10]. In our former research work [6–8, 11], a systematic method has been proposed, including chaos‐based analogue/digital, hard/soft switching PWM, for DC–DC converters. It can replace traditional filters and shielding to some extent, which imply high cost, large volume and weight and low efficiency.…”