Drive control apparatus for brushless DC motor and driving metho

Details Drive control apparatus for brushless DC motor and driving metho Drive control apparatus for brushless DC motor and driving metho

1994-03-18

1996-02-13

Shoop, Jr., William M.

Electricity: motive power systems

Limitation of motor load, current, torque or force

318138, 318254, 318811, 318807, H01R 3946

Patent

active

054913934

ABSTRACT:
A switching circuit including three series circuits each having a pair of switching elements series-connected on the upstream side and downstream side with respect to current flow, each of the connection nodes between the paired switching elements of the series circuits being connected to a corresponding one of the phase windings. A DC voltage output from a DC voltage circuit is applied to the series circuits of the switching circuit. One of the upstream side switching element in one of the series circuits of the switching circuit and the downstream side switching element in a different one of the series circuits is continuously set in the ON state, the other switching element is intermittently turned ON, and the switching elements to be turned ON are sequentially changed so as to sequentially energize the phase windings of a brushless DC motor. In this case, the switching element, which is one of the switching elements to be turned ON and which has been set in the ON state, is forcedly continuously set in the ON state for a initial preset period of time and one of the switching elements which is newly turned ON is forcedly intermittently turned ON for the initial preset period of time.

REFERENCES:
patent: 5041768 (1991-08-01), Herrmann
patent: 5079487 (1992-01-01), Malang
patent: 5086261 (1992-02-01), Sakata et al.
patent: 5170108 (1992-12-01), Peterson et al.
patent: 5264775 (1993-11-01), Namuduri et al.

Affiliated with

Also associated with

Rating

Drive control apparatus for brushless DC motor and driving metho does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drive control apparatus for brushless DC motor and driving metho, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drive control apparatus for brushless DC motor and driving metho will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-242636