Radiator having a fan in variable rotation speed

Details Radiator having a fan in variable rotation speed Radiator having a fan in variable rotation speed

2005-11-29

2005-11-29

Duda, Rina (Department: 2837)

Electricity: motor control systems

Closed loop speed control system for dc motor with commutator

C388S806000, C388S815000, C388S822000, C388S934000, C318S471000, C318S472000, C318S461000

Reexamination Certificate

active

06970643

ABSTRACT:
A radiator includes a voltage regulator for providing a reference voltage, a fan including a power end connected to the reference voltage via a first resistor and a feedback end for outputting a pulse signal indicating the rotation speed of the fan, an integration circuit including an output end, and an input end connected to the feedback end of the fan for converting the pulse signal from the feedback end into a voltage signal, and a thermistor connected between the output end of the integration circuit and the reference voltage, for detecting temperature changes in order to adjust the rotation speed of the fan.

REFERENCES:
patent: 3801888 (1974-04-01), Faulkner
patent: 4313402 (1982-02-01), Lehnhoff et al.
patent: 5457766 (1995-10-01), Ko
patent: 5942866 (1999-08-01), Hsieh
patent: 6182902 (2001-02-01), Shih
patent: 6407525 (2002-06-01), Horng et al.
patent: 6674369 (2004-01-01), Riddoch

Affiliated with

Also associated with

Rating

Radiator having a fan in variable rotation speed does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Radiator having a fan in variable rotation speed, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radiator having a fan in variable rotation speed will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3497445