ELECTRIC MOTOR CHOPPER CONTROL APPARATUS AND METHOD

摘要

A programmed microprocessor controller chopper apparatus for an electric motor is responsive to an operating condition of the chopper such as at least one of the commutation capacitor charge voltage and the level of motor current for determining the desired commutation circuit operation for that chopper apparatus in relation to the provision of an OFF control pulse in relation to an ON control pulse every cycle of the microprocessor program operation.