Circuit and method for controlling the rotating speed of a...

Details Circuit and method for controlling the rotating speed of a... Circuit and method for controlling the rotating speed of a...

2007-03-07

2008-10-28

Duda, Rina I (Department: 2837)

Electricity: motive power systems

Synchronous motor systems

Brushless motor closed-loop control

C318S599000, C318S400380, C388S800000, C388S811000

Reexamination Certificate

active

07443119

ABSTRACT:
A circuit and a method for controlling the rotating speed of a brushless direct current (BLDC) motor are provided, whose goal is solving the stall problem encountered by conventional BLDC motors driven by pulse width modulation (PWM). The circuit includes a closed-loop control mechanism for adjusting the duty cycle of the motor current of the BLDC motor, thus controlling the rotating speed of the motor. The closed-loop control is based on the comparison of a signal proportional to the actual rotating speed and another signal proportional to the predetermined target rotating speed.

REFERENCES:
patent: 6392372 (2002-05-01), Mays, II
patent: 6529393 (2003-03-01), Yu
patent: 2005/0031322 (2005-02-01), Boyle et al.
patent: 2007/0152624 (2007-07-01), Hamaoka et al.

Affiliated with

Also associated with

Rating

Circuit and method for controlling the rotating speed of a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit and method for controlling the rotating speed of a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit and method for controlling the rotating speed of a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4004033