Power factor control circuit having a boost current for increasi

Details Power factor control circuit having a boost current for increasi Power factor control circuit having a boost current for increasi

1994-09-06

1996-03-26

Nguyen, Matthew V.

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

363 21, G05F 140, H02M 3335

Patent

active

055023703

ABSTRACT:
An integrated power factor control circuit (12) for keeping an average AC line current sinusoidal and in phase with the line voltage. The integrated power factor control circuit (12) provides a boosted DC voltage greater than the amplitude of the line voltage. A transconductance amplifier (16) provides a boosted source and sink current when an output voltage is significantly out of regulation. The boosted source and sink current of the transconductance amplifier (16) increases the speed in which the voltage control loop can react to an output voltage change and reduces the time needed to generate the regulated voltage under startup. A comparator (17) provides a boost current at start up and senses a no-load condition during normal operation. The comparator (17) senses the no-load condition and stops switching to eliminate further output charging before an out of range condition occurs.

REFERENCES:
patent: 5220272 (1993-06-01), Nelson
patent: 5264780 (1993-11-01), Bruer et al.
patent: 5359281 (1994-10-01), Barrow et al.
patent: 5367247 (1994-11-01), Blocher et al.
patent: 5373225 (1994-12-01), Poletto et al.
patent: 5382918 (1995-01-01), Yamatake
patent: 5414610 (1995-05-01), Brainard
patent: 5424933 (1995-06-01), Illingworth
patent: 5440473 (1995-08-01), Ishii et al.

Affiliated with

Also associated with

Rating

Power factor control circuit having a boost current for increasi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Power factor control circuit having a boost current for increasi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power factor control circuit having a boost current for increasi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-918395