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This paper presents a new prototype of a single-stage ac-ac converter with Silicon-Carbide (SiC)-MOSFET / SiC-SBD integrated power module for induction heating (IH) applications. Switching and conduction power losses are effectively reduced by virtue of the 1.2kV-120 A All-SiC power module under the condition of zero voltage soft-switching (ZVS), as compared to the counterpart solution using a Si-IGBT...
This paper presents a novel zero current softswitching (ZCS) pulse width modulation (PWM) bidirectional dc-dc converter (BDC) under the high frequency(HF) switching condition. In the proposed soft-switching BDC, all the power devices operate by ZCS commutation modes with aid of the edge-resonant switching cells, whereby the switching power losses can be minimized. The buck and boost voltage regulation...
A new prototype of a single-stage utility ac (UFAC) to high-frequency ac (HFAC) resonant power converter for domestic induction heating (IH) applications is presented in this paper. The high frequency resonant ac-ac converter proposed herein can process UFAC to HFAC power conversion without any diode full-bridge rectifier stage, thereby reducing the number of semiconductor power devices and eliminating...
A new prototype of a secondary-side phase shifted (SPS) zero voltage and zero current soft switching PWM dc-dc converter with active rectifier is presented in this paper. The proposed dc-dc converter has no circulating current in the full-bridge circuits both of the primary and secondary sides, so that the related idling power can be minimized. Beside that, a wide-range soft switching can be attained...
This paper presents a feasibility investigation of a zero-voltage switching (ZVS) pulsewidth modulation (PWM) dc–dc converter with secondary-side phase-shifting power control scheme. The ZVS-PWM dc–dc converter treated here can achieve soft commutation in all the power devices under the wide range of output power variation. By the phase-shifting control that is based on the secondary-side rectifier...
A newly-developed zero current soft-switching (ZCS)-PWM cell-assisted asymmetrical half-bridge (AHB) DC-DC converter topology with a high frequency (HF) link is presented in this paper. The soft-switching half-bridge DC-DC converter consists of a PWM-controlled single-ended half-bridge HF inverter and a center-tapped rectifier linked by a HF transformer. In order to attain the wide range of ZCS commutation...
A general survey of the latest high-frequency high-power Static Induction Transistor (Power SIT), which is a high-power type of vertical field effect transistor, is briefly reviewed with respect to theother fast-switching power semiconductor devices such as bipolar power transistors,Power MOSFET, and thyristors. Instroduced is a new optimum Power SIT drive circuit including a two-channel PWM signal...
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