Load driving device and electrical apparatus using the same

Details Load driving device and electrical apparatus using the same Load driving device and electrical apparatus using the same

2007-08-09

2009-10-27

Masih, Karen (Department: 2837)

Electricity: motive power systems

Synchronous motor systems

Brushless motor closed-loop control

C318S400220, C318S400170

Reexamination Certificate

active

07609015

ABSTRACT:
A load driving device includes a driver that supplies drive current to a load having an inductance component, a current sensing resistor that generates sensed voltage corresponding to switching current that flows in the driver, a switch circuit that delivers one of the sensed voltage and a predetermined bias voltage selectively, a comparator that compares a selected voltage of the switch circuit with a predetermined reference voltage, and a logic circuit that generates a drive control signal for the driver based on a comparison output signal of the comparator, so as to perform constant-current chopping control of the drive current with improved stability of the constant-current chopping control while avoiding malfunction due to noise.

REFERENCES:
patent: 2001/0028235 (2001-10-01), Fukushi et al.
patent: 08-033382 (1996-02-01), None
patent: 08-223925 (1996-09-01), None
patent: 11-299283 (1999-10-01), None

Affiliated with

Also associated with

Rating

Load driving device and electrical apparatus using the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Load driving device and electrical apparatus using the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Load driving device and electrical apparatus using the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4111089