Electricity: motive power systems – Limitation of motor load – current – torque or force
Reexamination Certificate
2006-09-05
2006-09-05
Donovan, Lincoln (Department: 2837)
Electricity: motive power systems
Limitation of motor load, current, torque or force
C318S599000, C318S254100, C318S132000, C318S807000
Reexamination Certificate
active
07102312
ABSTRACT:
A motor driving apparatus and a driving method thereof, and a mobile terminal in which a terminal voltage value of a terminal is detected at a terminal voltage detection unit, and is held in a holding circuit. A difference between the terminal voltage value detected this time and the terminal voltage value detected last time and held in the holding circuit is calculated in a difference circuit, and the calculated difference voltage value is compared with a reference voltage value determining a rated frequency in a comparator. A synchronizing reference voltage value of a reference voltage source is controlled by a control circuit on the basis of each comparison result in the comparators and a frequency of a synchronizing reference signal specified as a basic operation time unit at the time of synchronous driving is corrected so that a stable synchronous operation condition can be obtained before a rotor of a brushless motor steps out from a synchronous operation.
REFERENCES:
patent: 5166583 (1992-11-01), Min et al.
patent: 5777449 (1998-07-01), Schlager
patent: 5943214 (1999-08-01), Sato et al.
patent: 6064175 (2000-05-01), Lee
patent: 6111372 (2000-08-01), Nishimura
patent: 6122131 (2000-09-01), Jeppson
patent: 6462491 (2002-10-01), Iijima et al.
patent: 6680590 (2004-01-01), Inoue et al.
patent: 6771033 (2004-08-01), Kokami et al.
patent: 6900604 (2005-05-01), Kokami et al.
patent: 6901212 (2005-05-01), Masino
patent: 6922032 (2005-07-01), Maeda
patent: 6946808 (2005-09-01), Kandori
patent: 6979970 (2005-12-01), Iwanaga et al.
patent: 2004/0080293 (2004-04-01), Kurosawa et al.
patent: 2004/0183490 (2004-09-01), Maeda
patent: 2005/0067986 (2005-03-01), Kurosawa et al.
patent: 2005/0189892 (2005-09-01), Kokami et al.
patent: 2005/0258788 (2005-11-01), Mori et al.
patent: 2006/0044664 (2006-03-01), Itagaki et al.
patent: 730341 (1996-09-01), None
patent: 840439 (1998-05-01), None
patent: 1-103194 (1989-04-01), None
patent: 8-186995 (1996-07-01), None
patent: 2000-69792 (2000-03-01), None
patent: 2000-232800 (2000-08-01), None
patent: 2001-95294 (2001-04-01), None
patent: 2001-178183 (2001-06-01), None
International Search Report dated Aug. 5, 2003.
Fujino Akira
Kayama Shun
Kikuchi Masafumi
Shibasaki Mitsuru
Suzuki Hitoshi
Colon Santana Eduardo
Donovan Lincoln
Kananen Ronald P.
LandOfFree
Motor driving apparatus, driving method thereof and mobile... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Motor driving apparatus, driving method thereof and mobile..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motor driving apparatus, driving method thereof and mobile... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3612241