Results 131 to 140 of about 675 (173)

Zero-Voltage Switching PWM Three-Level Full-Bridge DC–DC Converter With Wide ZVS Load Range

IEEE Transactions on Power Electronics, 2013
This paper proposes a new zero-voltage switching (ZVS) pulse width modulation (PWM) three-level (TL) full-bridge (FB) dc-dc converter, which is composed of a TL FB converter and a TL half-bridge (HB) converter. It is well suited for high input voltage and high-power applications.
Yong Shi, Xu Yang
exaly   +2 more sources

A Novel DC-Side Zero-Voltage Switching (ZVS) Three-Phase Boost PWM Rectifier Controlled by an Improved SVM Method

IEEE Transactions on Power Electronics, 2012
A novel active clamping zero-voltage switching three-phase boost pulsewidth modulation (PWM) rectifier is analyzed and a modified minimum-loss space vector modulation (SVM) strategy suitable for the novel zero-voltage switching (ZVS) rectifier is proposed in this paper.
Dehong Xu, Rui Li, Chengrui Du
exaly   +2 more sources

A novel zero voltage switched (ZVS) buck converter using coupled inductor

Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555), 2002
A novel zero-voltage switched (ZVS) buck converter using a coupled inductor is proposed in this paper. An additional winding is added on the same core of the output filter inductor for the purpose of commutation. The output inductor current is kept in continuous conduction mode (CCM) with small ripple.
null Yingqi Zhang, P.C. Sen, null Yan-Fei Liu   +2 more
openaire   +1 more source

A DC voltage notching scheme for zero voltage switching (ZVS) of PWM inverters

Proceedings of 1994 IEEE Industry Applications Society Annual Meeting, 2002
This paper presents a DC voltage notching scheme for zero voltage switching (ZVS) of PWM inverters. The proposed scheme permits programmed DC voltage notching, i.e. the DC voltage can be brought to zero on command to facilitate ZVS of the inverter switches.
W. Shireen, M.S. Arefeen
openaire   +1 more source

A Zero-Voltage-Switching (ZVS) push-pull DC/DC converter for UPS

The Fifth International Conference on Power Electronics and Drive Systems, 2003. PEDS 2003., 2004
This paper presents a control scheme that is very suitable for the DC/DC converter in uninterruptible power supply (UPS) systems. Based on this control scheme, a ZVS push-pull converter is proposed. With heavy load, or during the latter stage of battery discharge with light load, the DC/DC converter will operate with duty cycle fixed to near 0.5, thus ...
null Jianping Ying, null Qiuhua Zhu, null Hua Lin, null Zhigan Wu   +3 more
openaire   +1 more source

The zero voltage switching (ZVS) critical conduction mode (CRM) buck converter with tapped-inductor

Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2003. APEC '03., 2004
The critical conduction mode (CRM) control has some disadvantages such as the increase of switching loss and conduction loss of the main switch at extreme high/low voltage conversion applications. In this paper, a CRM buck converter with tapped inductor is proposed to overcome these problems. In this converter, both the active switch and the diode have
J.-H. Park, B.-H. Cho
openaire   +1 more source

Comparison of PWM zero-voltage-switching (ZVS) DC-DC converters with output isolation

IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting, 2002
Zero-voltage-switching (ZVS) isolated boost power converters are analyzed and investigated in this paper. Zero-voltage-switching (ZVS) and proper core reset can be achieved through the resonance that exists between the magnetizing inductance and the parasitic capacitance. A steady-state analysis is given to illustrate the principle of operation.
Qian, Jinrong, Batarseh, Issa
openaire   +1 more source

ZVS-IPRC: a zero voltage switching technique using secondary resonant synchronous rectifier

Proceedings of 1994 Power Electronics Specialist Conference - PESC'94, 2002
A new group of zero voltage switching power converters called "zero voltage switching isolated partial resonant power converters" (ZVS-IPRC) are proposed to improve the conventional single end type power converter. Zero voltage switching operation is achieved by using a secondary resonant synchronous rectifier to reduce the voltage stresses and ...
T. Lee, C.C. Liu, C.C. Chien, M.C. Chou
openaire   +1 more source

Analysis and Design of a Zero-Voltage-Switched (ZVS) Quasi-Resonant Buck Converter Operating in Full-Wave Mode

2020 6th International Conference on Engineering, Applied Sciences and Technology (ICEAST), 2020
Hard-switching is typically used in most DC-DC converters, where transition of a power switch occurs when it still carries current and is subject to voltage at the same time. The hard-switching operation incurs high stress and switching losses to the device.
Virot Wuti, Amata Luangpol, Kaweewat Tattiwong, Siripan Trakuldit, Alisala Taylim, Chanin Bunlaksananusorn   +5 more
openaire   +1 more source

A Novel Closed-Form Analytical Model for Zero-Voltage Switching (ZVS) operation of a Totem Pole PFC with Hysteresis Current Control

2021 IEEE Energy Conversion Congress and Exposition (ECCE), 2021
Addressing high efficiency and high power density applications, as the Totem Pole Power Factor Corrector (PFC) operating in Zero-Voltage Switching (ZVS) and controlled with an advanced Hysteresis Current Control, an analytical model for run-time calculation of the limit values of the hysteresis band and the dead-times is presented.
M. Torrisi, S. Messina, M. Cacciato
openaire   +2 more sources