Trigger circuit with blocking protection device for a collectorl

Details Trigger circuit with blocking protection device for a collectorl Trigger circuit with blocking protection device for a collectorl

1991-07-05

1992-11-10

Ro, Bentsu

Electricity: motive power systems

Switched reluctance motor commutation control

318471, 388934, H02H 7085

Patent

active

051627108

ABSTRACT:
The invention pertains to a control circuit for a collectorless DC motor where at least one power transistor (14, 16) is input-connected to each stator coil (2, 4) of the motor; said transistor is driven by at least one rotor position sensor, especially a Hall generator having commutation circuits to commute the motor current, and where a blocking protection device is provided to interrupt the motor current in an overload or blockage. The blocking protection device (26) has at least one semiconductor circuit (30) carrying the motor current which is switched through or blocked depending on its temperature.

REFERENCES:
patent: 3909690 (1975-09-01), Sugiura
patent: 4472666 (1984-09-01), Akeda et al.
patent: 4473781 (1984-09-01), Nielsen
patent: 4473782 (1984-09-01), Reinhardt et al.
patent: 4588933 (1986-05-01), Sun
patent: 4716486 (1987-12-01), Sobiepanek et al.
patent: 4740734 (1988-04-01), Takeuchi et al.
patent: 4985666 (1991-01-01), Nakabayashi

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