1977 IEEE Power Electronics Specialists Conference

14-16 June 1977

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  • [Front cover]

    Publication Year: 1977, Page(s): c1
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  • [Title page]

    Publication Year: 1977, Page(s): i
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  • Paper selection criteria

    Publication Year: 1977, Page(s): ii
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  • Table of contents

    Publication Year: 1977, Page(s):iii - v
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  • IEEE AESS Electrical Power Energy Systems Panel

    Publication Year: 1977, Page(s): vii
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  • Conference Committee

    Publication Year: 1977, Page(s): viii
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  • Program Committee/Local Arrangments Committee

    Publication Year: 1977, Page(s): ix
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  • On June 13, Banquet night featured

    Publication Year: 1977, Page(s):x - xi
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  • 1977 IEEE PESC Registrants

    Publication Year: 1977, Page(s):xii - xiv
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  • 1978 Power Electronics Specialists Conference Early - Call for papers

    Publication Year: 1977, Page(s): xv
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  • 1977 William E. Newell Power Electronics Award Presented to Dr. Richard G. Hoft

    Publication Year: 1977, Page(s):xvi - xvii
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  • Author index

    Publication Year: 1977, Page(s): xix
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  • Report from the Chairman

    Publication Year: 1977, Page(s): 1
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  • Device and Component Technology [Session Summary]

    Publication Year: 1977, Page(s): 2
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (154 KB)

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  • Description of magnetic and capacitor power components for space applications

    Publication Year: 1977, Page(s): 3
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (157 KB)

    (Full Paper not available at time of publication) The first part of the paper describes principal features and special testing of a power transformer designed and developed for space use. The magnetic requirements include a wide variety of operating conditions such as 2.25kW continuous power and primary current to 35A RMS at frequencies up to 20kHz. The main secondary Is at 1100V but there is an a... View full abstract»

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  • Technological development of high energy density capacitors

    Publication Year: 1977, Page(s): 4
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    (Full Paper not available at time of publication) This paper discusses the development of cylindrical wound metallzed-fllm capacitors of nominal 2 μF, 500 V rating that have energy densities greater than 0.1 J/g. This density Is about a factor of 20 better than capacitors of similar ratings commonly used In spacecraft power conditioners. View full abstract»

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  • Control of lifetime in silicon power devices using electron or gamma irradiation

    Publication Year: 1977, Page(s):5 - 10
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    Irradiation of silicon power devices is discussed for electrons of 0.8 to 12 MeV energy and gammas from Co<sup>60</sup> in terms of their effectiveness in altering device switching properties. Comparison is made with gold or platinum diffused devices. Gold diffusion provides the best tradeoff of forward voltage drop and reverse recovery time in diodes or turnoff time in thyristors. Thi... View full abstract»

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  • Improvement of power rectifier and thyristor characteristics by lifetime control

    Publication Year: 1977, Page(s):11 - 16
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (898 KB)

    It is shown that the ratings of rectifiers can be optimized by maximizing the ratio of the high level to the low level lifetime. An optimization criterion relating the recombination center location to its capture cross-section ratio for holes and electrons is derived. In the case of thyristors, the leakage current must also be considered in the optimization. This results in a criterion which relat... View full abstract»

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  • A nondestructive method for the determination of forward-biased safe-operating-area limits for power transistors

    Publication Year: 1977, Page(s):17 - 22
    Cited by:  Papers (2)
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    It is proposed that the limit of thermal instability replace the traditional limit of second breakdown for the safe-operating-area limits of power transistors. A nondestructive method for measuring the limit of thermal instability is described. The relationships between thermal instability, stable hot spots, and second breakdown are reviewed and it is shown that stable hotspot operating conditions... View full abstract»

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  • On the emitter shunt design for thyristors

    Publication Year: 1977, Page(s):23 - 26
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    The emitter shunting resistance can be used as an independent input in determining the switching characteristics of thyristors, especially fast switching thyristors. A smaller shunt resistance leads to a higher dv/dt capability and a higher gate triggering current. Trade-off relations given in this paper indicate that the device's dv/dt capability and hence the turn-off time can be optimized by sa... View full abstract»

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  • High injection region analysis and optimization of power transistors

    Publication Year: 1977, Page(s):27 - 34
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    A model of base widening and the associated inverse mode base conductivity modulation is proposed. Expressions are obtained for saturated current gain (h<sub>FE</sub>) and cutoff frequency (f<sub>T</sub>) in double-diffused transistors for exponential, Gaussian, and erfc base impurity profiles. A convenient method for calculation of optimum transistor design variables is al... View full abstract»

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  • Regulation, Modeling and Computer-Aided Design [Session Summary]

    Publication Year: 1977, Page(s): 35
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  • A general unified approach to modelling switching DC-tO-DC converters in discontinuous conduction mode

    Publication Year: 1977, Page(s):36 - 57
    Cited by:  Papers (158)
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    A method for modelling switching converters in the discontinuous conucction mode is developed, whose starting point is the unified state-space representation, and whose end results is a complete linear circuit model which correctly represents all essential features, namly, the input, output, and transfer properties (static dc as well as dynamic ac small signal). While the method is generally appli... View full abstract»

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  • Generalized computer-aided discrete time domain modeling and analysis of DC-DC converters

    Publication Year: 1977, Page(s):58 - 69
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    A generalized discrete time domain modeling and andlysis technique is presented for all types of switching regulaors using any type of duty-cycle controller, and operat1nq 1n both continuous and discontinuous inductor current. State space techniques are employed to derive an equivalent nonlinear discrete time model that describes the converter exactly. The system is linearized about its equilibriu... View full abstract»

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  • Analytic derivation and evaluation of a state-trajectory control law for DC-to-DC converters

    Publication Year: 1977, Page(s):70 - 85
    Cited by:  Papers (23)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (2876 KB)

    Mathematical representations of a state-plane switching boundary employed in a state-trajectory control law for dc-to-dc converters are derived. Several levels of approximation to the switching boundary equations are presented, together with an evaluation of the effects of nonidea1 operating characteristics of converter power stage components on the shape and location of the boundary and the behav... View full abstract»

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