Motor drive system and process

Details Motor drive system and process Motor drive system and process

2007-02-27

2007-02-27

Ip, Paul (Department: 2837)

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Plural, diverse or diversely controlled sources of armature...

C318S106000, C318S108000, C320S118000, C307S010100, C307S046000, C307S048000

Reexamination Certificate

active

11258203

ABSTRACT:
A motor drive system includes a multi-output dc power source providing three or more output potentials, and a switching circuit including switching devices connected, respectively, with the output potentials of the multi-output power source. A controller determines a command apply voltage representing a desired voltage to be applied to the motor, and further determines a plurality of command share voltages corresponding to supply voltages of the multi-output dc power source, from the command apply voltage. The controller produces a pulsed voltage by driving the switching devices in accordance with the command share voltages.

REFERENCES:
patent: 6384489 (2002-05-01), Bluemel et al.
patent: 2002/0038732 (2002-04-01), Sugiura et al.
patent: 2004/0135546 (2004-07-01), Chertok et al.
patent: 2005/0105514 (2005-05-01), Usuba et al.
patent: 2005/0111246 (2005-05-01), Lai et al.
patent: 2006/0006832 (2006-01-01), Kitajima et al.
patent: 1 195 287 (2002-04-01), None
patent: 2002-118981 (2002-04-01), None
U.S. Appl. No. 11/174,643, filed Jul. 6, 2005, Kitajima et al.

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