Power supply derived from motor winding

Details Power supply derived from motor winding Power supply derived from motor winding

1994-05-11

1997-02-18

Fleming, Fritz

Electrical transmission or interconnection systems

Switching systems

Condition responsive

361159, 318245, H02J 100

Patent

active

056043872

ABSTRACT:
A low voltage power supply which uses a low voltage transistor in conjunction with a winding of an electric motor and the high voltage motor commutation transistors. The motor winding is energised by the commutation transistors for example during use of the motor, and the low voltage transistor is used to divert current from the energised motor winding at desired intervals to provide the low voltage power supply. The low voltage supply may be used in an appliance such as a laundry machine for supplying the motor control circuitry and auxiliary devices for example, a drainage pump and water supply control valves.

REFERENCES:
patent: 4328528 (1982-05-01), Kompelian
patent: 4504778 (1985-03-01), Evans
patent: 4649302 (1987-03-01), Damiano et al.
patent: 4780788 (1988-10-01), Kammerer et al.
patent: 4806843 (1989-02-01), Mertens et al.
patent: 4841207 (1989-06-01), Cheyne
patent: 5025134 (1991-06-01), Bensoussan et al.
patent: 5081411 (1992-01-01), Walker

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