Motor driving apparatus

Details Motor driving apparatus Motor driving apparatus

1995-04-03

1998-11-10

Martin, David S.

Electricity: motor control systems

Closed loop speed control system for dc motor with commutator

Armature control by digital or combined analog and digital...

318245, 388920, E02D 528

Patent

active

058356762

ABSTRACT:
An apparatus for driving an electric motor, including a full-wave rectifier which rectifies an alternating current supplied from an alternating-current power supply, and supplies a full-wave rectified current to the motor, a chopper which chops the full-wave rectified current supplied from the rectifier to the motor so that the chopped current is applied to the motor, and a control device which generates a chopping pulse signal having a first signal characteristic corresponding to a given motor control target and a second signal characteristic to reduce an alternating-current component of the full-wave rectified current supplied to the motor, the control device supplying the chopping pulse signal to the chopper so that the chopper chops the full-wave rectified current according to the chopping pulse signal.

REFERENCES:
patent: 3710213 (1973-01-01), Hansen
patent: 3984753 (1976-10-01), Uchida et al.
patent: 4201936 (1980-05-01), Roumanis
patent: 4556827 (1985-12-01), Erdman
patent: 4562549 (1985-12-01), Tanaka et al.
patent: 4622500 (1986-11-01), Budelman
patent: 4739230 (1988-04-01), Sonobe et al.
patent: 4897778 (1990-01-01), Miyamoto et al.
patent: 5029229 (1991-07-01), Nelson

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