METHODS AND SYSTEMS FOR CONTROLLING AN ELECTRONICALLY COMMUTATED MOTOR
First Claim
Patent Images
1. A method for controlling the operation of an electronically commutated motor (ECM), said method comprising:
- providing a pulse width modulated signal to an ECM controller; and
adjusting a duty cycle of the pulse width modulated signal to cause the ECM controller to regulate at least one of a maximum current drawn by the ECM and an average voltage applied to the ECM.
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Abstract
A method for controlling the operation of an electronically commutated motor (ECM) is described. The method includes providing a pulse width modulated signal to an ECM controller and adjusting a duty cycle of the pulse width modulated signal to cause the ECM controller to regulate at least one of a maximum current drawn by the ECM and an average voltage applied to the ECM.
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Citations
20 Claims
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1. A method for controlling the operation of an electronically commutated motor (ECM), said method comprising:
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providing a pulse width modulated signal to an ECM controller; and
adjusting a duty cycle of the pulse width modulated signal to cause the ECM controller to regulate at least one of a maximum current drawn by the ECM and an average voltage applied to the ECM. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A unit for controlling the operation of an electronically commutated motor (ECM), said unit comprising:
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a driver circuit for applying signals to windings of an ECM, said driver circuit coupled to a plurality of gate drivers;
a processing device comprising at least one pulse width modulated (PWM) output, a reference signal output, and a plurality of digital outputs; and
a network coupling said processing device to said gate drivers, said network configured to regulate at least one of a maximum current drawn by said ECM and an average voltage applied to said ECM, based on a duty cycle of the at least one PWM output. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An electronically commutated motor (ECM) assembly comprising:
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an ECM; and
an ECM controller configured to control operation of said ECM, said ECM controller configured to regulate at least one of a maximum current drawn by said ECM and an average voltage applied to said ECM, based on a duty cycle of a signal generated by said ECM controller. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification