Results 221 to 230 of about 11,819 (262)

An improved two-transistor forward converter

Proceedings of the IEEE 1999 International Conference on Power Electronics and Drive Systems. PEDS'99 (Cat. No.99TH8475), 1999
An improved two-transistor forward converter, an active damp two-transistor forward converter, has been proposed in this paper. It is developed by paralleling an active damp circuit at the primary side of the transformer of the two-transistor forward converter to damp the voltage across power switches, to demagnetize the transformer and to achieve zero-
null Jianping Xu, null Xiaohong Cao, null Qianchao Luo   +2 more
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A built-in-input filter forward converter

Proceedings of 1994 Power Electronics Specialist Conference - PESC'94, 2002
Employing the transformer leakage inductance and two cross-coupled capacitors, a built-in input filter forward converter (BIFFC) configuration is proposed to shape the input current waveform to a nonpulsating fashion. Consequently the ripple and harmonic component of the input current can be significantly reduced without adding a large input filter. In
null Ching-Shan Leu, null Junn-Bin Hwang
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Sliding mode controlled forward converter

2015 IEEE 9th International Conference on Intelligent Systems and Control (ISCO), 2015
The control methods for DC-DC converters should consider wide input voltage ranges and load variations to guarantee stability under wide operating conditions. The switching action of DC-DC converters makes them variable structure systems. Sliding Mode controller is a robust nonlinear controller that can be used for such variable structure systems.
Anju Baby, null Nithya M.
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On lessening the cross regulation in a forward converter

The Fifth International Conference on Power Electronics and Drive Systems, 2003. PEDS 2003., 2004
A new method is proposed in this paper to improve the cross regulation in a multioutput forward converter. An objective function is determined for each of the multiple DC outputs to track its reference. The error of each output is maintained within an acceptable level.
null Yu-Kang Lo, null Tzu-Herng Song, null Shang-Chin Yen   +2 more
openaire   +1 more source

A new forward converter with soft commutation

38th Midwest Symposium on Circuits and Systems. Proceedings, 2002
This paper will present a steady-state analysis with complete characterization of the converter operation. The non-dissipative snubber associated with a Forward converter provides the soft commutation switching. The proposed approach allows building a converter with high frequency operation. A detailed analysis of the operation will be presented.
A.A. Pereira, L.C. de Freitas, J.B. Vieira   +2 more
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A dual mode forward/flyback converter

1982 IEEE Power Electronics Specialists conference, 1982
This paper presents a single transistor dc-dc converter that combines both forward and flyback action. The resulting circuit is ohmically isolated and can operate over a wide range of input-to-output voltage ratios. An analysis of the circuit indicates that the forward and flyback portions of the circuit interact to produce three distinct regions of ...
J.N. Park, T.R. Zaloum
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Buck-boost integrated forward converter

2005 European Conference on Power Electronics and Applications, 2005
An integrated converter is a synthesized converter based on the overall system integration, which is simplified by the system objective and can implement the system functions similar to the discrete converters. An integrated converter consists of converter sets; each converter set has a special function defined by the designer.
Z. Nie, A. Emadi
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Straight forward control of the matrix converter

2005 European Conference on Power Electronics and Applications, 2005
This paper proposes a new modulation strategy for the matrix converter. Only the instantaneous values of the input voltages, of the output currents and the wanted output voltages and wanted reactive input currents are needed to create the switching functions - including neutral function and common-mode terms - for obtaining the maximum control ...
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Selection of transformer cores for forward converters

1986 IEEE Applied Power Electronics Conference and Exposition, 1986
This paper derives expressions to aid the specification of the coresize for the transformer of forward converters.
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The forward converter: from the classic to the contemporary

APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335), 2003
The evolution of the forward power converter is first reviewed, in a tutorial fashion, from the classic to the contemporary. Salient features are then discussed and results are compiled to form practical design guidelines. Performance parameters are discussed, including operating principle, voltage conversion ratio, efficiency, device stresses, small ...
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