Control circuit for an electric drive motor

Details Control circuit for an electric drive motor Control circuit for an electric drive motor

1988-04-29

1990-10-23

Ro, Bentsu

Electricity: motive power systems

Braking

Friction braking

318280, 361355, H02B 120

Patent

active

049654977

ABSTRACT:
A control circuit for an electric motor having a power control element containing a first semiconductor for driving the motor in one torque direction, and a power control element containing a second semiconductor for driving the motor in the other torque direction includes a circuit-breaker for at least isolating one of the power control elements, upon failure of the one power control element, and connecting the remainder of the circuit to the other power control element instead of the failed power control element.

REFERENCES:
patent: 3535610 (1970-10-01), Maynard
patent: 3551782 (1970-12-01), Maynard
patent: 3721890 (1973-03-01), Ettinger et al.
patent: 3725758 (1973-04-01), Loyk
patent: 3821628 (1974-06-01), Caputo
patent: 3895285 (1975-07-01), Bardahl et al.
patent: 4056767 (1977-11-01), Tobise et al.
patent: 4145640 (1979-03-01), Kipp et al.
patent: 4161016 (1979-07-01), Born et al.
patent: 4414619 (1983-11-01), Kahkipuro
patent: 4471855 (1984-09-01), Nomura

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