Specimen processing and analyzing systems with variable zener-diode flyback stepper motor control
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United States of America Patent
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Oct 4, 1994
Grant Date -
N/A
app pub date -
Oct 31, 1991
filing date -
Oct 31, 1991
priority date (Note) -
Expired
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Abstract
An improved control system for a stepper motor coil includes a flyback circuit that dissipates coil energy slowly while the coil is energized and operated in the chopping mode, while dissipating coil energy rapidly when the coil is switched to its de-energized phase.
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