Motor spindle control system and method

Details Motor spindle control system and method Motor spindle control system and method

2007-04-17

2007-04-17

Donovan, Lincoln (Department: 2837)

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

C318S560000, C318S566000, C318S567000, C318S132000, C318S254100, C318S434000

Reexamination Certificate

active

11482560

ABSTRACT:
In a method for measuring motor speed and position by detecting the back EMF generated during pole-pair interactions, a separate respective duration of a power phase suppression signal, that is set during back EMF detection, is stored in memory for each respective pole. The separate respective duration values are determined during a calibration phase by iteratively lengthening each respective duration one unit at a time (up to a maximum value) until no part of the respective back EMF signal occurs outside the suppression signal duration, and those values are stored. During operation, the approach of a pole-pair interaction may be determined from the electrical cycle of the power supply, and then the stored duration value is used to control the state of the suppression signal.

REFERENCES:
patent: 5208518 (1993-05-01), Grapenthin et al.
patent: 5254914 (1993-10-01), Dunfield et al.
patent: 5990643 (1999-11-01), Holling et al.
patent: 6218794 (2001-04-01), Shimizu et al.
patent: 6462491 (2002-10-01), Iijima et al.
patent: 2003/0234623 (2003-12-01), Douglas

Affiliated with

Also associated with

Rating

Motor spindle control system and method 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 spindle control system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motor spindle control system and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3779535