Motor controller unit having thermal startup protection

Details Motor controller unit having thermal startup protection Motor controller unit having thermal startup protection

1997-12-23

2000-05-23

Masih, Karen

Electricity: motive power systems

Automatic and/or with time-delay means

318472, H02P 700

Patent

active

060669314

ABSTRACT:
A motor controller unit includes an operating program that controllably responds to manual motor start and stop commands for protection of the semiconductor switches connected with each phase of a multi-phase electric motor. Upon receipt of a start command, a determination is made as to whether the measured time lapse between a previous stop command is less than a predetermnined time delay period.

REFERENCES:
patent: 4028593 (1977-06-01), Newell
patent: 4476423 (1984-10-01), Mallick, Jr. et al.
patent: 5341080 (1994-08-01), Sanz

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