Results 321 to 330 of about 4,534,827 (376)

Active-clamping quad-flyback converter

2009 IEEE International Symposium on Industrial Electronics, 2009
An active-clamping quad-flyback converter is proposed to achieve zero voltage switching (ZVS) for all power switches. The secondary sides of quad-flyback converter are connected in parallel to share the load current. Thus, the transformer copper losses and the conduction losses on the output diodes are reduced.
B.-R. Lin, H.-K. Chiang, F.-P. Tsao
openaire   +1 more source

Active-clamping dual resonant converter

2009 IEEE International Symposium on Industrial Electronics, 2009
A dual resonant converter using active clamp circuit is presented in this paper. The active clamp circuit is employed to limit the voltage stress and create zero-voltage-switching (ZVS) turn-on feature for power switches. Moreover, the dual resonant tanks are composed by the leakage inductors and resonant capacitors to achieve zero-current-switching ...
J.-J. Chen, B.-R. Lin, M.-H. Yu, H.-K. Chiang   +3 more
openaire   +1 more source

Active Clamp ZVT Boost Converter

2006 1ST IEEE Conference on Industrial Electronics and Applications, 2006
In this paper, the technique of active clamp is applied in ZVT boost converter and forms active clamp ZVT boost converter. This converter is not only simple in topology but also achieves ZVT in both the main switch and the auxilary switch. The boost diode turns off naturally and there is no reverse recovery loss.
Jianbing Li, Yujie Shi, Zhongxia Niu, Dongfang Zhou   +3 more
openaire   +1 more source

Modeling and Reduction of Radiated EMI in a GaN IC-Based Active Clamp Flyback Adapter

IEEE transactions on power electronics, 2020
This article first develops a radiated electromagnetic interference (EMI) model for a gallium nitride (GaN) integrated circuit (IC)-based active clamp flyback converter.
Juntao Yao, Yiming Li, Shuo Wang, Xiucheng Huang, X. Lyu   +4 more
semanticscholar   +1 more source

A Constant Current Digital Control Method for Primary-Side Regulation Active-Clamp Flyback Converter

European Conference on Cognitive Ergonomics, 2020
Active-clamp flyback converter is now widely used because higher efficiency is obtained with soft-switching technique. However, opto-coupler is always applied in the feedback loop to acquire the output signal.
Chong Wang, Xiang Zhang, Daying Sun, Wenhua Gu   +3 more
semanticscholar   +1 more source

A Dual-Active-Clamp Quasi-Resonant Isolated Boost Converter for PV Integration to Medium-Voltage DC Grids

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020
With the development of renewable energy generation, medium-voltage dc collection in large-scale photovoltaic (PV) plants has become a research focus with less losses and less system complexity.
Jiye Liu, Kui Wang, Zedong Zheng, Chi Li, Yongdong Li   +4 more
semanticscholar   +1 more source

Double-Ended Active-Clamp Forward Converter With Low DC Offset Current of Transformer

IEEE transactions on industrial electronics (1982. Print), 2020
The double-ended (DE) active-clamp forward (ACF) converter is one of the attractive dc–dc converters for the power supply of digital devices due to a simple structure and zero voltage switching (ZVS) capability of primary switches.
Myung-Ho Kim, Seung-Hoon Lee, Bom-Seok Lee, Ji‐Yeon Kim, Jae-Kuk Kim   +4 more
semanticscholar   +1 more source

ESD robust high-voltage active clamps

Microelectronics Reliability, 2009
Using circuit simulation extended by a proper failure criterion, the HBM and TLP robustness of high-voltage clamps can be accurately predicted without the need for test silicon. Electrical measurements, physical damage analysis, and device simulation have proved that the drain junction breakdown voltage constitutes the proper failure criterion for our ...
Guido Notermans, Olivier Quittard, Anco Heringa, Željko Mrčarica, Fabrice Blanc, Hans van Zwol, Theo Smedes, Thomas Keller, Peter de Jong   +8 more
openaire   +1 more source

Patch Clamp Studies Of Lymphocyte Activation

Annual Review of Immunology, 1990
In both T- and B-lymphocyte activation, antigen receptor or mitogen stimulation results in phosphoinositide turnover, generation of InsP3 and diacylglycerol, and a sustained rise in intracellular Ca2+, from both intracellular Ca2+ stores release and enhanced transmembrane Ca2+ influx. There is also an associated K+ efflux and membrane hyperpolarization.
openaire   +2 more sources

Lossless active clamp for secondary circuits

INTELEC - Twentieth International Telecommunications Energy Conference (Cat. No.98CH36263), 2002
Lossless snubbers have been developed with the emphasis on snubbing the primary side switches. With the switching losses in the primary being minimised, the secondary diode losses become a major limiting factor of converter operating frequency and total efficiency. To address this problem, a new active lossless clamp for secondary diodes of switch mode
J. Dekter, N. Machin, R. Sheehy
openaire   +1 more source