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In recent years, kinetic energy storage systems with electric double layered capacitor (EDLC) bank have been widely studied and developed for the fuel cell electric vehicles(FCEV). In this paper, a full-bridge/push-pull inverter based isolated bi-directional DC-DC soft switching converter for EDLC interface is proposed. The DC-DC converter mentioned here has the great advantage that the number of...
This paper presents a power control strategy of the full-bridge series resonant inverter based on the asymmetrical voltage-cancellation control with variable-frequency in induction cooking appliances with a load of low Q factor on the domestic markets. The switching frequency of inverter is suitably operated higher than the resonant frequency under zero-voltage-switching (ZVS) condition. The proposed...
In this paper an interleaved Class D-E resonant converter is proposed. Analysis, design, and evaluation of the proposed converter are presented. The interleaving approach utilizes two half-bridges to dislocate two resonant tanks in the Class D inverters, which results in a single control unit and a 180 degree phase-shift switching angle designs in the proposed topology. While the analog control method...
This paper presents single stage series load resonant ZVS-PWM high frequency inverter which operates one diode conduction mode and critical ZCS PFC rectifier for induction heating (IH) applications. This single stage inverter is composed of a single phase PFC rectifier operating at one diode conduction mode and asymmetrical ZVS-PWM high frequency resonant inverter without the interlink bulky electrolytic...
In order to adapt the miniaturization and low EMI of pulsed power supply, a novel quasi-resonant piezoelectric transformer converter for high voltage pulse capacitor charging was developed. The system has the advantages of simple structure, absorbing the switch capacitive parameters and zero voltage switching (ZVS). Therefore, this converter is suit to operate under high-frequency conditions. The...
In this paper the results from a prototype low voltage DC input (<30 VDC) kilowatt class high frequency parallel-loaded resonant AC-link inverter is described. This system delivers utility grade voltage-source power at electronically selectable 50, 60, or 400 Hz. Cycle-by-cycle bidirectional current flow reduces the need for intermediate energy storage and allows for operation in a wide range of...
This paper presents a high-efficiency-high power density one stage ZVS-PWM single-ended push-pull (SEPP) high frequency inverter with new PFC functional scheme. This high-frequency resonant series load resonant inverter with lossless snubbing capacitors is composed of a passive PFC converter operating at one diode conducting bridge circuit and asymmetrical ZVS-PWM high frequency resonant direct inverter...
This paper presents an operation analysis of a high frequency three-level (TL) PWM inverter applied for an induction heating applications. The feature of TL inverter is to achieve zero-voltage switching (ZVS) at above the resonant frequency. The circuit has been modified from the full-bridge inverter to reach high-voltage with low-harmonic output. The device voltage stresses are controlled in a half...
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