Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2008-06-27
2011-10-11
Colon-Santana, Eduardo (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S798000, C318S400060, C318S471000, C388S815000, C388S822000, C388S934000
Reexamination Certificate
active
08035333
ABSTRACT:
A fan motor speed control circuit includes: a driving circuit configured to drive a fan motor so as to run at a rotation speed corresponding to a drive signal; a comparison circuit configured to output a comparison signal for matching a rotation speed of the fan motor with a target rotation speed, based on a reference signal corresponding to the target rotation speed of the fan motor and a speed signal corresponding to the rotation speed of the fan motor; and a selection circuit configured to output to the driving circuit the drive signal corresponding to one signal out of the reference signal and the comparison signal, the one signal being a signal by which the fan motor is driven at a higher rotation speed.
REFERENCES:
patent: 4856078 (1989-08-01), Konopka
patent: 5099181 (1992-03-01), Canon
patent: 5942866 (1999-08-01), Hsieh
patent: 6385395 (2002-05-01), Horng et al.
patent: 6407525 (2002-06-01), Horng et al.
patent: 6515447 (2003-02-01), Horng et al.
patent: 6703803 (2004-03-01), Ohiwa et al.
patent: 6737860 (2004-05-01), Hsu et al.
patent: 7106107 (2006-09-01), Bhattacharya et al.
patent: 7138781 (2006-11-01), Murray et al.
patent: 7301294 (2007-11-01), Ogino et al.
patent: 7386224 (2008-06-01), Hsieh
patent: 7420340 (2008-09-01), Ogino et al.
patent: 7564204 (2009-07-01), Ogino et al.
patent: 2002/0109475 (2002-08-01), Horng et al.
patent: 2003/0020460 (2003-01-01), Hsu et al.
patent: 2005/0047761 (2005-03-01), Babb et al.
patent: 2005/0243482 (2005-11-01), Lee
patent: 2006/0108962 (2006-05-01), Murray et al.
patent: 2007/0024223 (2007-02-01), You et al.
patent: 2007/0047929 (2007-03-01), Hsieh
patent: 2007/0156292 (2007-07-01), Frankel et al.
patent: 2004-120980 (2004-04-01), None
patent: 2005-151792 (2005-06-01), None
patent: 2007-068344 (2007-03-01), None
Harashima Takashi
Yoshitomi Tetsuya
Colon-Santana Eduardo
Semiconductor Components Industries LLC
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