Divided phase AC synchronous motor controller
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United States of America Patent
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Feb 13, 2018
Issued Date -
N/A
app pub date -
Jan 29, 2016
filing date -
Nov 14, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A circuit includes phase windings, a direct current (DC) power supply, and a power switch circuit. The power switch circuit includes at least one power switch. The circuit also includes a control circuit to control the power switch circuit. The control circuit includes a logic control shut off circuit to shut off the control circuit when the motor is at synchronous speed. The circuit also includes at least one non-collapsing DC power supply component to prevent the DC power supply from collapsing when the at least one power switch is on and conducting during at least a portion of a cycle. One or more of the DC power supply and power switch circuit may be at a midpoint of the phase windings.
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