1973 IEEE Power Electronics Specialists Conference

11-13 June 1973

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Displaying Results 1 - 25 of 43
  • [Front cover]

    Publication Year: 1973, Page(s): c1
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  • [Title page]

    Publication Year: 1973, Page(s): 1
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  • Table of contents

    Publication Year: 1973, Page(s): 3
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  • Paper selection criteria

    Publication Year: 1973, Page(s): 2
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  • Conference Organizing Committee

    Publication Year: 1973, Page(s): 4
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  • Opening address by the Conference General Chairman

    Publication Year: 1973, Page(s): 5
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  • Power Electronics-Emerging from Limbo [Conference Keynote Address]

    Publication Year: 1973, Page(s):6 - 12
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (1126 KB)

    Power electronics is a technology which is interstitial to all three of the major disciplines of electrical engineering: electronics, power, and control. Yet its rapidly expanding significance has not been widely recognized, and the historical parochialism of specialists within the technology has stifled communication and cooperation in solving increasingly challenging problems. This paper calls f... View full abstract»

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  • Aerospace Power Electronics Applications [Session Summary]

    Publication Year: 1973, Page(s): 13
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (158 KB)

    Provides a summary of the conference session. View full abstract»

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  • A failure tolerant power subsystem for outer planet spacecraft

    Publication Year: 1973, Page(s):14 - 23
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    Spacecraft electrical power subsystems require continuous monitoring, ground supported analysis of performance, and ground intervention to provide power management and fault correction. An interplanetary fly-by mission to the outer planets necessitates long periods of relatively low activity between encounters. It would be desirable to minimize ground access and support during these times if it ca... View full abstract»

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  • Power subsystem for Skylab radiometer/scatterometer/altimer experiment

    Publication Year: 1973, Page(s):24 - 29
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    Spacecraft electrical systems must satisfy a demand for short duration pulses and long term or dc levels as the spacecrafts electronic equipment is operated. During these operational periods, the spacecraft bus undergoes wide variations in power demand which can cause voltage fluctuations and out of specification conditions to occur if adequate design provisions are not incorporated. This paper de... View full abstract»

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  • Flight performance of the ERTS-1 spacecraft power system

    Publication Year: 1973, Page(s):30 - 40
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    The initial spacecraft of the Earth Resources Technology Satellite Program, ERTS-1, was launched on July 23, 1972, and has provided broad earth resource data for use by numerous governmental and scientific agencies. This paper reports on the basic design and flight performance to date of the ERTS-1 power system. The design is based on earlier Nimbus spacecraft power system configurations with modi... View full abstract»

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  • Decentralized power processing for large-scale systems

    Publication Year: 1973, Page(s):41 - 45
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    The successful application of decentralized power processing to several large-scale systems at Hughes Aircraft Company is described in this report. Tradeoff studies, performance results and circuit examples are summarized; also included are the results of studies regarding the selection of ac versus dc link for the distribution of power to the using electronic units. Problem areas and suggestions ... View full abstract»

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  • High-efficiency converter and battery charger for an RTG power source

    Publication Year: 1973, Page(s):46 - 57
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (1541 KB)

    Spacecraft power systems utilizing radioisotope thermoelectric generators CRTGs) as primary power sources present an uncommon set of require ments and limitations for interfacing dc-to-dc converters. A converter configuration is presented that complements these RTG characteristics. The circuit is a variation of the basic flyback regulator modified to provide input regulation. The converter has two... View full abstract»

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  • Programmable power source

    Publication Year: 1973, Page(s):58 - 65
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    This paper discusses methods of generating high voltage waveforms (up to several thousand volts) at modest power levels (several ten's of watts). The circuit techniques and system configurations which involve Parallel Series Chains (PSC) of Light Triggered Bilateral Switches (LTBS) are new and employ all solid state components. The circuit and system techniques discussed show how small, light weig... View full abstract»

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  • Power Electronics Devices [Session Summary]

    Publication Year: 1973, Page(s): 66
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (144 KB)

    Provides a summary of the conference session. View full abstract»

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  • Quantitative models for second breakdown in transistors

    Publication Year: 1973, Page(s):67 - 73
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (930 KB)

    Two models are discussed which can be used to predict both forward and reverse second breakdown limits. The thermal model, which applies to forward second breakdown, includes the effects of base and emitter ballasting. The electrical model is most applicable to the case of reverse second breakdown and is based on the mechanism of avalanche injection. Good agreement between the predictions of the m... View full abstract»

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  • Optimum vertical design and evaluation techniques for high-current, high-voltage transistors

    Publication Year: 1973, Page(s):74 - 79
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    This paper discusses a quantitative design theory and new analysis techniques applicable to saturated switching power transistors. Methods for discriminating among various possible current-gain falloff mechanisms at high current densities are discussed in terms of easily measurable quantities allowing separation of the terminal currents in to physically meaningful components. The new analytical an... View full abstract»

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  • Multi-section model of an N+-P-v-N+ high voltage power switching transistor

    Publication Year: 1973, Page(s):80 - 89
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    An improved model is introduced to represent NN+-P-v-N+ high-voltage power switching transistors. This model differs from the conventional Ebers-Moll model in three major respects: (1) a non-linear collector resistance is included to account for conductivity modulation in the collector region; (2) the forward current gain is made to depend on VCE as well as Ic... View full abstract»

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  • Recent development in gate controlled switches

    Publication Year: 1973, Page(s):90 - 96
    Cited by:  Papers (2)
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    Improved understanding of the design and operation of these devices has led to the successful development of a new generation of high power gate controlled switches. The devices reported here have an 800 volt forward blocking capability. The forward drop is less than 1.7 volts at 100 amperes and the devices turn-off 100 amperes in about 1 microsecond. Testing techniques and procedures have been de... View full abstract»

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  • Description of a technique for the reduction of SCR turn-off time

    Publication Year: 1973, Page(s):97 - 109
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    An SCR structure is provided with an anodegate which is used to speed up the device recovery and reduce it s turn-off time. The turn-off process of the "Anode-Gate SCR" is analyzed using the charge control approach. Experimental devices are described and the results of measurements are reported. View full abstract»

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  • Methods of Analysis in Power Processing Systems [Session Summary]

    Publication Year: 1973, Page(s): 110
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    Summary form only as given. Provides a summary of the conference session. View full abstract»

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  • Requirements on switching devices in DC-to-DC converters

    Publication Year: 1973, Page(s):111 - 117
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    Lower bounds are established for the power dissipated, peak voltage, and peak current for the switches and diodes in any dc-to-dc converter. The bounds are in terms of the input and output voltages and currents of the converter. A trade-off between peak voltage and peak current in a switch is shown to be theoretically possible. Realization of the trade-off in practice is illustrated by considering... View full abstract»

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  • Analysis of starting circuits for a class of hard oscillators: two-transistor saturable-core parallel inverters

    Publication Year: 1973, Page(s):118 - 129
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    One of the important practical considerations in using static dc to square-wave inverters such as the circuit shown in Fig. 1 is the reliable starting of oscillations. It is generally known that inverters of this type are not self-starting under relatively heavy load conditions. Starting under load generally is achieved through an externally added starting circuit. A variety of starting circuits h... View full abstract»

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  • Linearized stability analysis and design of a flyback DC-DC boost regulator

    Publication Year: 1973, Page(s):130 - 137
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    Analytic expressions for the small-signal power-stage describing functions of a switched dc-dc boost regulator are derived from an approximate continuous circuit model which is developed by a time-averaging technique. Closed-loop stability is, attained through the design of frequency compensation of the loop gain. Open- and closed-loop regulator output impedances are derived from the linearized mo... View full abstract»

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  • System oscillations from negative input resistance at power input port of switching-mode regulator, amplifier, DC/DC converter, or DC/DC inverter

    Publication Year: 1973, Page(s):138 - 140
    Cited by:  Papers (8)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (478 KB)

    A switching regulator or a switching-mode amplifier, dc/dc converter, or dc/ac inverter can have a negative dynamic input resistance at the dc power input port. Frequently an LC decoupling filter is inserted in the dc power line between this equipment and the prime dc power source, to keep switching transients off the dc power buss. The negative input resistance of the equipment can exceed the pos... View full abstract»

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