Results 171 to 180 of about 12,059 (216)

Implementation of a new ZVS DC/DC converter to extend ZVS range

TENCON 2015 - 2015 IEEE Region 10 Conference, 2015
A novel zero-voltage switching (ZVS) converter is studied in this paper. The proposed converter consists a three-level converter and a LLC converter with same active switches to have wide ZVS load range and to reduce conduction losses at freewheeling interval. Series resonant converter with fixed switching frequency is adopted to improve ZVS load range
Bor-Ren Lin, Kuan-Hao Chen
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A novel approach for achieving ZVS operation in class-D ZVS inverter

2017 IEEE 12th International Conference on Power Electronics and Drive Systems (PEDS), 2017
This paper presents a novel approach to fulfill the zero-current switching (ZVS) operation of the class-D ZVS inverter by utilizing the anti-parallel diode of transistor actively which enables a switching-timing allowance to be produced. The switching-timing allowance of the class-D ZVS inverter at any duty ratio is derived.
Xiuqin Wei, Hiroo Sekiya, Tadashi Suetsugu   +2 more
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A ZVS-PWM inverter using a simple ZVS-PWM auxiliary commutation pole

2011 6th IEEE Conference on Industrial Electronics and Applications, 2011
A new zero-voltage-switching (ZVS) pulsewidth-modulated (PWM) single-phase inverter using a simple ZVS-PWM auxiliary commutation pole is presented in this paper. Except for the auxiliary switches, all active and passive semiconductor devices in the ZVS-PWM single-phase inverter operate at ZVS turn on and turn off. The auxiliary switches operate at zero-
Chien-Ming Wang, Chang-Hua Lin, Hsin-Yi Lin   +2 more
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A novel ZVS direct coupling converter (DCC)

PESC Record. 27th Annual IEEE Power Electronics Specialists Conference, 2002
A novel DC-DC power converter with a ZVS topology is introduced. An amplitude modulated squarewave train is generated and the output can be controlled by the amplitude of this squarewave train. As energy is directly transferred to the output, it is known as a direct coupling converter (DCC).
Poon, NK, Pong, MH
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ZVS Boost Converter with Wide ZVS Range

2011
A zero-voltage-switching (ZVS) boost converter with wide ZVS range is proposed in this paper. A ripple-free cell is added to a conventional two-switch boost converter. The ripple-free cell provides a ripple-free input current and ZVS operation of two switches. Due to the ZVS feature, the switching loss is significantly reduced.
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An Improved ZVS PWM Three-Level Converter

IEEE Transactions on Industrial Electronics, 2004
This paper proposes an improved zero-voltage-switching pulse-width-modulation three-level converter (ZVS PWM TLC), which is improved from the original ZVS PWM TLC just by exchanging the position of the resonant inductor and the transformer, such that the transformer is connected with the lagging switches.
null Ke Jin, null Xinbo Ruan, null Fuxin Liu   +2 more
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A Novel ZVS-PWM Single-Phase Inverter Using a Voltage Clamp ZVS Boost DC Link

2007 2nd IEEE Conference on Industrial Electronics and Applications, 2007
A novel zero-voltage-switching pulse-width-modulation (ZVS-PWM) single-phase inverter using a voltage clamp ZVS boost dc link is proposed in this paper. The proposed voltage clamp ZVS boost dc link not only provides the switches in the section of conventional PWM buck inverter operate at ZVS, but it has a boost input voltage function and the switches ...
Chien-Ming Wang, Ching-Hung Su, Chien-Yeh Ho, Kuo-Lun Fang   +3 more
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A Novel ZVS-PWM Single-Phase Inverter Using a New Simple ZVS-PWM Commutation Cell

2007 2nd IEEE Conference on Industrial Electronics and Applications, 2007
A new zero-voltage-switching (ZVS) pulsewidth-modulated (PWM) single-phase inverter using a simple ZVS-PWM commutation cell is presented in this paper. Except for the auxiliary switches, all active and passive semiconductor devices in the ZVS-PWM single-phase inverter operate at ZVS turn on and turn off.
Chien-Ming Wang, Ching-Hung Su, Maoh-Chin Jiag, Juing-Huei Su, Yan-Chun Lin   +4 more
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Double-Ended ZVS Half-Bridge Zeta Converter

2007 IEEE Power Electronics Specialists Conference, 2007
A new double-ended type zero-voltage switching (ZVS) half-bridge zeta (HBZ) converter employing a double-ended rectifier (DER) is proposed. The proposed DER for the HBZ converter provides a bidirectional powering path in the rectifier. As a result, the improved voltage waveform of the rectifier reduces the output filter size and voltage stresses on ...
Park, KB, Kim, CE, Moon, GW Moon, GunWoo, Youn, MJ Youn, Myung Joong   +3 more
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Die Rolle der ZVS

1997
Als Hurde, als burokratisches Hindernis auf dem Weg zum Studienplatz wird sie haufig angesehen, die Zentralstelle sr die Vergabe von Studienplatzen in Dortmund, besser bekannt unter dem Kurzel ZVS. Bezogen auf die wirtschaftswissenschaftlichen Studienmoglichkeiten haben der Ausbau von Studienplatzen und die rucklaufige Nachfrage allerdings diese Hurde,
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