Voltage-boosting motor controller
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United States of America Patent
Stats
-
Sep 26, 1989
Grant Date -
N/A
app pub date -
Jul 8, 1988
filing date -
Jul 8, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A boosted power-supply voltage is developed by the combination of three power drivers, a filter capacitor, and a Y-connected motor. Each of the power drivers includes a pair of transistors connected in a totem-pole configuration with a clamping (catch) diode connected between the collector and the emitter of the upper transistor. Rather than a power-supply voltage source, only the filter capacitor is connected to the collectors of the upper transistors, a reduced-voltage level DC power-supply voltage-source being connected to the motor-winding-common node.
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