Results 261 to 270 of about 3,292,938 (307)

Analysis of an Active Clamp Forward Converter

2005 International Conference on Power Electronics and Drives Systems, 2006
This paper studies the detailed circuit operation, mathematical analysis and design example of the active clamp forward converter with synchronous rectifier. There is one auxiliary switch and one clamp capacitor used in the forward converter to recycle the energy stored in the transformer leakage in order to minimize the spike voltage at the ...
null Bor-Ren Lin, null Huann-Keng Chiang, null Chien-En Huang, null Kao-Cheng Chen, D. Wang   +4 more
openaire   +1 more source

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

An adaptive active clamp for secondary circuits

2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2011
An adaptive active clamp for secondary circuits is proposed in this paper. Theoretical analyses, simulation results and experimental results show that this proposed active clamp control scheme can reduce the turn-off current of the clamp switch. Furthermore, it can achieve much less conduction loss and turn-off loss when the conduction period and ...
Xiaogao Xie, JiaLian Wang, Shirong Liu
openaire   +1 more source

Fault-tolerance capacity of the multilevel active clamped topology

2011 IEEE Energy Conversion Congress and Exposition, 2011
Thanks to the inherent redundancy to generate the different output voltage levels, the multilevel active clamped (MAC) topology presents an important fault-tolerance ability which makes it interesting for several applications. This paper presents an analysis of the fault-tolerance capacity of the MAC converter.
Nicolás Apruzzese, Joan, Busquets Monge, Sergio, Bordonau Farrerons, José, Alepuz Menéndez, Salvador, Calle Prado, Alejandro   +4 more
openaire   +1 more source

Steady-State Stability of Current-Mode Active-Clamp ZVS DC–DC Converters

IEEE Transactions on Power Electronics, 2011
Active-clamp dc-dc converters are pulsewidth-modulated converters having two switches featuring zero-voltage switching at frequencies beyond 100 kHz. Generalized equivalent circuits valid for steady-state and dynamic performance have been proposed for ...
N Lakshminarasamma, V Ramanarayanan
exaly   +1 more source

1 kW PFC converter with compound active-clamping

IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03., 2004
A PFC converter employing compound active clamping technique is proposed. It can effectively reduce the loss caused by diode reverse recovery. Both the main switch and the auxiliary switch can achieve soft-switching (ZVS) under certain conditions. The parasitic oscillation caused by the parasitic capacitance of the boost diode is eliminated.
B. Feng, D. Xu
openaire   +1 more source

A voltage equalizer using flyback converter with active clamp

2012 IEEE Asia Pacific Conference on Circuits and Systems, 2012
This paper proposes a voltage equalizer using flyback converter with active clamp. This novel voltage equalizer is able to reduce the power losses. An active clamp circuit is used as an auxiliary circuit to achieve zero voltage switching (ZVS). Simulation results with PSIM and experimental results are shown. The proposed circuit is confirmed to be more
Tomoyuki Mizuno, Tomoshige Inoue, Keisuke Iwasawa, Hirotaka Koizumi   +3 more
openaire   +2 more sources

Active-clamp ZVS two-switch flyback converter

2011 IEEE International Symposium of Circuits and Systems (ISCAS), 2011
This paper introduces a zero voltage switching (ZVS) two-switch flyback pulse-width modulated (PWM) DC-DC converter along with the principle of circuit operation and steady-state analysis. The proposed converter topology is the result of incorporating an auxiliary circuit in place of the clamping diodes on the primary side of the conventional hard ...
Dakshina Murthy-Bellur, Marian K. Kazimierczuk   +1 more
openaire   +1 more source

A Novel Noncomplementary Active Clamp Flyback Control Technique

2019 IEEE Applied Power Electronics Conference and Exposition (APEC), 2019
This paper proposes an innovative non-complementary control method for an active clamp flyback converter. The proposed method recovers the leakage inductance energy and achieves soft switching for all the switches, while obtaining a lower RMS current compared to previous complementary or noncomplementary active clamp flyback control methods.
Bianco A., Adragna C., Saggini S., Ursino M., Ciappa F., Scappatura G.   +5 more
openaire   +1 more source

Analysis and Design of an Interleaved Active-Clamping Forward Converter

IEEE Transactions on Industrial Electronics, 2007
This paper presents a new interleaved active- clamping zero-voltage-switching (ZVS) forward converter, which is mainly composed of two active-clamping forward converters. Only two switches are required, and each one is the auxiliary switch for the other. The circuit complexity and cost are thus reduced.
Lo, Y.-K., Kao, T.-S., Lin, J.-Y.
openaire   +3 more sources