Electricity: motive power systems – Synchronous motor systems – Hysteresis or reluctance motor systems
Reexamination Certificate
2006-10-25
2010-06-22
Leykin, Rita (Department: 2837)
Electricity: motive power systems
Synchronous motor systems
Hysteresis or reluctance motor systems
C318S254100, C318S254200, C318S599000, C363S025000, C363S026000
Reexamination Certificate
active
07741803
ABSTRACT:
Disclosed is an apparatus and method for driving a 2-phase SRM capable of individually performing an initial driving by an initializing sensor and a normal driving by a driving sensor, and capable of controlling a rotation speed of the SRM by delaying a phase signal by a half period and then generating a pulse width modulation signal based on the period. The apparatus comprises: a driving sensor which detects a position of a rotor thus to generate a driving sensor signal based on a result of the detection; a microprocessor which generates a 1-phase signal and a 2-phase signal based on a rising time and a falling time of the driving sensor signal at the time of a normal driving; an oscillator which generates first and second pulse width modulation signals delayed by a preset time; and a multiplying unit which multiplies the 1-phase and 2-phase signals with the first and second pulse width modulation signals, and generates 1-phase and 2-phase driving signals based on a result of the multiplication.
REFERENCES:
patent: 4757241 (1988-07-01), Young
patent: 4757603 (1988-07-01), Stokes
patent: 4772839 (1988-09-01), MacMinn et al.
patent: 4933584 (1990-06-01), Harms et al.
patent: 4943760 (1990-07-01), Byrne et al.
patent: 5423192 (1995-06-01), Young et al.
patent: 5446359 (1995-08-01), Horst
patent: 5552685 (1996-09-01), Young et al.
patent: 5821723 (1998-10-01), Kim
patent: 6788020 (2004-09-01), Pollock et al.
patent: 7009360 (2006-03-01), Jin-Woo et al.
patent: 2004/0036440 (2004-02-01), Kim et al.
patent: 2004/0061464 (2004-04-01), Kim et al.
patent: 2006/0038528 (2006-02-01), Park et al.
patent: 2006/0284512 (2006-12-01), Lee et al.
patent: 2007/0257633 (2007-11-01), Won et al.
Choi Yong-Won
Kim Sang-Young
Ked & Associates LLP
Leykin Rita
LG Electronics Inc.
LandOfFree
Apparatus and method for driving 2-phase SRM does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for driving 2-phase SRM, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for driving 2-phase SRM will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4163514