Solid state reversing AC motor starter with DC power source

Details Solid state reversing AC motor starter with DC power source Solid state reversing AC motor starter with DC power source

2006-08-30

2008-12-02

Leykin, Rita (Department: 2837)

Electricity: motive power systems

Induction motor systems

Primary circuit control

C318S801000, C318S808000, C363S123000, C363S131000, C363S132000, C363S040000, C363S041000, C363S098000

Reexamination Certificate

active

07459877

ABSTRACT:
A solid state reversing AC motor starter that employs a DC power source and a power bridge employing insulated gate bipolar transistors that provide an ungrounded three phase AC output. The AC output is connected to the power input of the motor starter, which requires simultaneous RUN and Directional Commands to initiate valve actuation.

REFERENCES:
patent: 4454930 (1984-06-01), Nomura et al.
patent: 5055992 (1991-10-01), Cook
patent: 5298848 (1994-03-01), Ueda et al.
patent: 5481451 (1996-01-01), Kuwahara
patent: 5946208 (1999-08-01), Yamamoto et al.
patent: 6842669 (2005-01-01), Bednar et al.

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