Results 271 to 280 of about 531,568 (306)
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A Novel Zero-Voltage and Zero-Current-Switching Full-Bridge PWM Converter
IEEE Transactions on Power Electronics, 2004A novel zero-voltage and zero-current-switching (ZVZCS) full-bridge pulse-width modulation converter is proposed. The ZCS condition of the lagging-leg is obtained by a simple secondary auxiliary circuit resetting the primary current during the freewheeling stage. The auxiliary circuit's capacitor is charged by the center tape of the secondary through a
null SongTingTing, null HuangNianci
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Resonant IGCT Soft-Switching: Zero-Voltage Switching or Zero-Current Switching?
IEEE Transactions on Power Electronics, 2022Gabriele Ulissi +4 more
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A new zero-current-switching constant switching frequency boost converter
1993 IEEE International Symposium on Circuits and Systems, 2002The authors present a new boost topology which can be operated in constant switching frequency and zero-current-switching. In addition, the voltage stresses on the active switches are as low as the traditional boost pulse width modulated (PWM) converter. The control curves are derived through the normalized state-plane trajectory.
L. Yang, D. Long, Y. Zhang, C.Q. Lee
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Zero-Current Switching Clamped Current Converter
2021 Brazilian Power Electronics Conference (COBEP), 2021Vinicius Freire Bezerra +2 more
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A New High-Efficiency Zero-Voltage, Zero-Current Switching Topology
2006 IEEE International Vacuum Electronics Conference held Jointly with 2006 IEEE International Vacuum Electron Sources, 2006This paper presents a novel high efficiency topology that is capable of operating with lossless switching though a very wide load range. The topology exhibits practical efficiencies exceeding 97% for a 250W, 50V output, and presents an optimised, smooth switching waveform, which is ideal for a typical spacecraft Electronic Power Conditioner.
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A zero-current-switching multilevel switched capacitor DC-DC converter
2011 IEEE Energy Conversion Congress and Exposition, 2011This paper introduces a zero-current-switching multilevel switched capacitor dc-dc converter for use in high voltage gain and high temperature applications. This circuit has a reduced charge path, low switch count and low device ratings compared to many similar topologies. Furthermore, switching losses and component size are greatly reduced.
Matthew L. Gebben +5 more
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Zero-voltage and zero-current-switching half bridge DC/DC converter
Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344), 2003This paper introduces an improved zero-voltage and zero-current-switching half bridge (ZV-ZCS HB) DC/DC converter for medium and high-power applications. The soft switching is obtained by adding only small capacitors. The operation principle and design procedure are presented together with an analysis of the total losses in the switch.
V. Valchev +4 more
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Novel zero-current-switching (ZCS) PWM converters
IECON'03. 29th Annual Conference of the IEEE Industrial Electronics Society (IEEE Cat. No.03CH37468), 2004A new family of zero-current-switching (ZCS) pulsewidth-modulated (PWM) converters which uses a new ZCS PWM switch cell is presented in this paper. The main switch and auxiliary switch operate at zero-current-switching turn on and turn off, and the all passive semiconductor devices in the ZCS-PWM converter operate at zero-voltage-switching (ZVS) turn ...
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Resonant current driven, nonresonant current coupled zero-voltage-switching converter
[1991] Proceedings of the 34th Midwest Symposium on Circuits and Systems, 2002The authors present the analysis and design of a novel current driven, zero-voltage-switching resonant converter. By appropriately positioning the L-C tank components, the detrimental effects due to the transistor and transformer parasitics are eliminated, thus permitting operation at higher switching frequencies. In addition, a novel lossless clamping
J.P. Gegner, C.Q. Lee
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Voltage fed zero-voltage zero-current switching PWM DC-DC converter
2008 13th International Power Electronics and Motion Control Conference, 2008A new zero-voltage zero-current switching full-bridge phase-shifted PWM converter with controlled output rectifier is presented in this paper. IGBT switches are used in the high-frequency inverter of the DC-DC converter. Zero-voltage turn-on and zero-current turn-off for all power switches of the inverter is achieved for full load range from no-load to
Jaroslav Dudrik, Vladimir Ruscin
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