Methods and systems for providing PWM control signals to an electronically commutated motor
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United States of America Patent
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Jan 27, 2009
Grant Date -
May 31, 2007
app pub date -
Nov 29, 2006
filing date -
Nov 30, 2005
priority date (Note) -
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Abstract
A method for controlling the operation of an electronically commutated motor (ECM) with an ECM control assembly is described. The method includes applying a single pulse width modulated (PWM) signal to a plurality of inputs of a power output module. The method also includes controlling the state of input/output (I/O) circuits to allow the PWM signal to pass through a respective one of the power output module inputs and into a respective winding of the ECM at a desired interval.
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