Run and brake control circuit

Details Run and brake control circuit Run and brake control circuit

1986-07-14

1988-04-05

Smith, Jr., David

Electricity: motive power systems

Induction motor systems

Braking

318760, H02P 324

Patent

active

047361468

ABSTRACT:
An electric motor run and brake control circuit for controlling alternating current to a three-phase motor in which the circuit is operated by a single logic level input signal. When the input signal is low, a run relay is closed and AC power is applied to the motor. When the input signal goes high, the run relay is opened and the motor is braked for a fast stop. A brake capacitor and charge resistor limit both the time during which braking current is applied and the repetition rate of braking cycles.

REFERENCES:
patent: 3753061 (1973-08-01), Owens
patent: 3805133 (1974-04-01), Hatekeyama et al.
patent: 4181197 (1980-01-01), Tanabe et al.
patent: 4334181 (1982-06-01), Schroeder
patent: 4560913 (1985-12-01), Min
patent: 4612490 (1986-09-01), Kagi

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