Pulse width modulated control system

Details Pulse width modulated control system Pulse width modulated control system

1975-03-10

1976-11-02

Rubinson, Gene Z.

Electricity: motive power systems

Plural diverse motor controls

Motor-reversing

318263, 318341, 307 72, 307 75, H02P 122

Patent

active

039899926

ABSTRACT:
A pulse width modulated motor control system in which the power supplies for forward and reverse operation for the motor are provided to supply electric energy at different levels. The control signals for the motor are provided in such a manner that the average energy of unbalanced pulse periods is the same, but the potential level differs by a substantial amount. Energy storage may be provided for in conjunction with the lesser of the two power supplies to assist in a rapid reversal, stop or shaft positioning of the motor.

REFERENCES:
patent: 3480849 (1969-11-01), Thornsen et al.
patent: 3555304 (1971-01-01), Magee
patent: 3783360 (1974-01-01), Bundy
patent: 3864612 (1975-02-01), Whited

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