Motor drive circuit

Details Motor drive circuit Motor drive circuit

1999-05-18

2000-07-25

Witkowski, Stanley J.

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Starting and/or stopping

318103, 318139, 318 54, H02P 158

Patent

active

060940190

ABSTRACT:
The common contact 5a of a power source circuit side relay 2a is connected to the common contact 15a of a motor circuit side relay 12a. The common contact 5b of a power source circuit side relay 2b is connected to the common contact 15b of a motor circuit side relay 12b. And, the switching contacts 6a and 6b, and 16a and 16b of the power source circuit sides relays 2a and 2b and the motor circuit side relays 12a and 12b are tripped in response to relay switching signals provided by an ECU. The power source circuit side relays 2a and 2b are selectively switched, so that the directions of flow of currents in the motor circuits 21 through 24 are changed.

REFERENCES:
patent: 3147423 (1964-09-01), Rocher
patent: 3573576 (1971-04-01), Nakabo
patent: 3575648 (1971-04-01), Ridding
patent: 3576482 (1971-04-01), Rhee
patent: 4143813 (1979-03-01), Bryans
patent: 4264849 (1981-04-01), Fleischer et al.
patent: 4288726 (1981-09-01), Vazquez-Cuervo et al.
patent: 4887941 (1989-12-01), Crinquette et al.
patent: 5517091 (1996-05-01), Becher et al.

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