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In this study, we focused on an electric motorcycle system with onboard innovative charger using ultracapacitor (EDLC). The electric two-wheel scooter is an excellent performance and environmentally friendly. Moreover, it's just an effectual solution suitable for energy resource issues and the global environment. This paper discusses with the electric motorcycle using EDLC and an innovative pulse...
This study aims to elucidate industrial performance of a recently developed SiC power module constituting of a pair of switches (two in one type, maximum rating 1200V/120A) for two types of high frequency inverters. They operates at 100kHz for induction heating applications. Firstly, a conventional voltage fed full-bridge type high frequency inverter bread board is prepared feeding 3kW output power...
This paper presents a new conceptual circuit topology of a high efficiency single-phase sinewave PV power conditioner with a compact intermediate film capacitor DC link stage. It consists of time-sharing partial sinewave absolute pulse width modulated boost chopper with auxiliary bypass diode in the first power processing stage and time-sharing partial sinewave pulse width modulated polarity changing...
This paper presents an improved single-stage type single-ended push pull (SEPP) high frequency inverter for induction heating applications. It unifies a boost-type PFC power converter and a ZVS-SEPP high frequency inverter operating at a fixed frequency. On the other hand, conventional dual stage half-bridge high frequency inverters have PFC converters at the preceding stage followed by SEPP high...
A new prototype of a secondary-side phase shifted (SPS) soft switching PWM dc-dc converter suitable for electric vehicle (EV) battery charging systems is presented in this paper. In the proposed dc-dc converter, soft switching commutations are achievable from full load to no load by utilizing parasitic inductances of the high frequency (HF) transformer. Beside that, no circulating current in both...
This paper presents a newly-developed soft switching PWM boost dc-dc converter in continuous conduction mode (CCM). The soft switching boost dc-dc converter consists of an edge-resonant switched capacitor (ER-SWC) cell, providing the wide-range soft commutations for all the switching power devices. The voltage stress inherent to the CCM scheme can be reduced by employing a lossless auxiliary circuit...
A boost type high frequency inverter with PFC function for induction heating applications is presented. Usual dual stage boost-type half-bridge inverters have PFC converters as DC source voltages at the first stage. These inverter systems have many circuit components, their circuit constitutions are complex, and they are low in conversion efficiency. This paper describes characteristics of the proposed...
This paper presents a new investigation for a soft commutation performance of a soft switching PWM non-isolated boost DC-DC converter embedding an ER-SWC (Edge Resonant SWitched Capacitor) modular. The conceptual DC-DC converter treated here can achieve a high frequency ZCS turn-on and ZVS turn-off commutations in active switches and minimization of a reverse recovering current in the freewheeling...
This paper presents a new soft switching PWM non-isolated boost DC-DC converter embedding an edge resonant switched capacitor (ER-SWC) modular. The soft switching PWM boost DC-DC converter treated here can achieve a high frequency zero current switching (ZCS) turn-on and zero voltage switching (ZVS) turn-off operations in active switches and minimize a reverse recovering current in the freewheeling...
Harmonic currents generated from the power electric equipment such as IH cooking heaters involve harmful influences to the other equipments connected to the utility grid. As for the IH cooking appliances, adding the PFC converter to the input stage of IH cooking heater is one of the practical solutions to suppress harmonic current influences. In this paper, two operation modes; DCM and CCM for the...
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