Results 221 to 230 of about 1,546 (262)

New Approach to Power Convertor Circuits

IEE Journal on Electric Power Applications, 1979
The technique of `shorting-coil' switching proposed in this paper provides a novel method of static power conversion. It overcomes the restrictions imposed by the voltage/current ratings of the available power, semiconductor devices and conventional convertor circuit configurations.
P. Mehta, T. Thomson, W. Un
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Ramptime current control [for power convertors]

Proceedings of Applied Power Electronics Conference. APEC '96, 2002
Ramptime current control is a new robust technique for directly controlling the inductor current in switched power converters. It is largely invariant with respect to circuit parameters and system voltages. Ramptime is a sliding mode method producing zero average current error (ZACE) in each switching period with a controlled switching frequency band ...
L.J. Borle, C.V. Nayar
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Vibratory power convertor systems

Proceedings of the IEE Part C: Monographs, 1962
A brief description of the underlying principles involved in vibratory power convertor systems is given, and then formulae are derived for use in system analysis and design. These consist of expressions which enable the compliance forces and effective masses of two different arrangements of conventional systems to be determined under all conditions ...
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Power System Convertor Harmonics

International Journal of Electrical Engineering & Education, 1982
A brief outline of convertor harmonic theory is given. The paper also describes the non-linearity which generates the harmonics in large convertors. A summary is given of the recent work carried out by the author and colleagues on the calculation of harmonics in non-ideal convertors with both ac and dc impedance represented.
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Issues in boundary control [of power convertors]

PESC Record. 27th Annual IEEE Power Electronics Specialists Conference, 2002
State plane analysis is used to study large-signal properties and control strategies for DC-DC power converters. A general load line is defined and interpreted. The concept of a switching boundary is convenient for generalizing hysteretic controls. Boundaries are classified according to their local dynamics.
R. Munzert, P.T. Krein
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A monolithic signal isolator (for power convertors)

Proceedings, Fourth Annual IEEE Applied Power Electronics Conference and Exposition, 2003
The design and construction are described of a monolithic isolator, a two-port device designed to pass information across an isolated boundary for use in power convertor applications. Among its features are: high-voltage galvanic isolation blocking; passive sensing capability; wide dynamic range; large signal linearity; 1% precision; a large-signal 3 ...
G. Knoedl, S.A. Rawls, L.J. Turgeon, J.W. Bess   +3 more
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New power convertor technique employing power transistors

Proceedings of the Institution of Electrical Engineers, 1978
A new power convertor, using power transistors in a switching mode as the main power elements, has been introduced. This convertor is capable of conversion from a fixed 3-phase source to variable frequency, controlled output current, such that the operating frequency range is not limited by the supply frequency.
A.R. Daniels, D.T. Slattery
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Methods of increasing the power rating of vibratory convertors

Journal of the Institution of Electrical Engineers, 1951
The paper discusses some of the difficulties encountered when extending the load capacity of vibratory convertors, and, in particular, those which are imposed by contact deterioration due to arcing. Two methods are described by which these difficulties may be overcome, both making use of special circuits designed to reduce the current carried by the ...
K.H. Dixey, C.V. Wilman
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Commutation reactance of the transformer in a static power convertor

Proceedings of the Institution of Electrical Engineers, 1964
Two methods have been evolved to determine the commutation reactance of a transformer operating in a rectifier or invertor circuit. One of the methods, called the commutation-overlap method, gives an accurate value. The other, designated the area-loss method, is simpler in evaluation and gives an approximate value, the approximation being closer as the
R. Feinberg, W.Y. Chen
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Some considerations in the application of power rectifiers and convertors

Proceedings of the IEE Part A: Power Engineering, 1960
The paper reviews the more important considerations in the selection and application of power rectifiers and convertors. It begins with a discussion on the suitability and selection of semiconductor rectifiers and mercury-arc rectifiers and convertors for various applications, and proceeds to a discussion on the number of phases to employ and how this ...
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