Methods and apparatus for dynamically reconfiguring a pulse width modulation approach
An apparatus includes a driver circuit including electronic switches operable to deliver voltage and current to a polyphase motor; and a control circuit operable to provide driver control signals to the driver circuit to commutate the electronic switches, the control circuit (i) producing the driver...
Saved in:
Main Author | |
---|---|
Format | Patent |
Language | English |
Published |
07.06.2005
|
Edition | 7 |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | An apparatus includes a driver circuit including electronic switches operable to deliver voltage and current to a polyphase motor; and a control circuit operable to provide driver control signals to the driver circuit to commutate the electronic switches, the control circuit (i) producing the driver control signals using a first pulse width modulation (PWM) mode when the polyphase motor produces a substantially non-zero acceleration torque; and (ii) producing the driver control signals using a second PWM mode when the polyphase motor produces a substantially zero acceleration torque. |
---|---|
Bibliography: | Application Number: US20030454019 |