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Dive into the research topics where Mark John Kocher is active.

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Featured researches published by Mark John Kocher.


IEEE Transactions on Industry Applications | 1983

An AC-to-DC Converter with High Quality Input Waveforms

Mark John Kocher; Robert Louis Steigerwald

An ac-to-dc converter which draws sinusoidal and inphase current waveforms from the ac power source is described. Harmonic and power factor measurements obtained from a field- effect transistor (FET) converter operating at 45 kHz for a single- phase and a three-phase connection are presented. A stability analysis and design methodology are given.


IEEE Transactions on Industry Applications | 1984

Fail-Safe Dynamic Brake for Three-Phase Induction Machines

George A. Kaufman; Mark John Kocher

In several applications, a fail-safe brake (one designed to operate with loss of power) is required for three-phase induction machines. Typical braking methods for induction machines require external energy sources which are not fail-safe, or a mechanical friction brake which is costly and requires maintenance. A simple cost-effective fail-safe braking scheme is proposed for three-phase induction machines. Static and dynamic analyses of the proposed brake are presented along with analytical results. Experimental daia are included for comparison with the analytical results.


Archive | 1981

Single phase and three phase AC to DC converters

Mark John Kocher; Robert Louis Steigerwald


Archive | 1984

Protected input/output circuitry for a programmable controller

Ronald Eric Gareis; Mark John Kocher


Archive | 1984

Dual function input/output for a programmable controller

Mark John Kocher; Ronald Eric Gareis; William Joseph Ketelhut; Charles Edward Konrad


Archive | 1989

Programmable controller input/output communications system

Joseph John Cieri; Mark John Kocher; Ronald Eric Gareis; Kenneth Michael Holet; Michael Joseph Tuso


Archive | 1988

Combined input/output circuit for a programmable controller

Ancil Bernard Cruickshank; Ronald Eric Gareis; Mark John Kocher; Michael Joseph Tuso


Archive | 1988

Programmable threshold data detection system

Ronald Eric Gareis; Mark John Kocher


Archive | 1983

Two stage electrical braking for a variable speed AC induction motor

George A. Kaufman; Mark John Kocher


Archive | 1985

1/o system for programmable controllers

Joseph John Cieri; Mark John Kocher; Ronald Eric Gareis; Kenneth Michael Holet; Michael John Tuso

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