Motor drive unit

Details Motor drive unit Motor drive unit

2006-07-12

2008-12-16

Ip, Paul (Department: 2837)

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Having electrical synchronizing interconnections

C318S052000, C318S400070, C363S087000

Reexamination Certificate

active

07466086

ABSTRACT:
A motor drive unit comprises a DC power source, a plurality of inverter circuits for converting the a power of this DC power source to an AC power, current detectors for detecting an output current of at least one of those plurality of inverter circuits and a controller for performing PWM control of those plurality of inverter circuits. This controller is constructed in a way to synchronize a PWM period of the plurality of inverter circuits, so as to drive a plurality of motors at once by means of those plurality of inverter circuits respectively.

REFERENCES:
patent: 5661378 (1997-08-01), Hapeman
patent: 6023137 (2000-02-01), Kumar et al.
patent: 6060859 (2000-05-01), Jonokuchi
patent: 6075717 (2000-06-01), Kumar et al.
patent: 6331365 (2001-12-01), King
patent: 6384567 (2002-05-01), Maeda
patent: 6577087 (2003-06-01), Su
patent: 6864646 (2005-03-01), Rahman et al.
patent: 7049784 (2006-05-01), Suzuki
patent: 7304444 (2007-12-01), Takano et al.
patent: 2001/0035049 (2001-11-01), Balch et al.
patent: 2004/0160201 (2004-08-01), Rahman et al.
patent: 2004/0207349 (2004-10-01), Suzuki
patent: 2002-165476 (2002-06-01), None

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