Electricity: power supply or regulation systems – External or operator controlled – Zero switching
Patent
1997-09-25
1999-02-02
Sterrett, Jeffrey
Electricity: power supply or regulation systems
External or operator controlled
Zero switching
323322, H05B 3702
Patent
active
058670165
ABSTRACT:
A duty cycle based AC power control method reduces objectionable voltage fluctuations at a frequency that causes "flicker" by shifting the frequency of actuations of controlled devices to frequencies significantly greater than and/or less than the flicker sensitive frequency. The frequency of actuations may be redistributed (1) by segmenting the devices to provide approximately equal power requirements per actuation, (2) by providing one-half cycle actuation pulses rather than one cycle actuation pulses, and/or (3) by spacing the actuations evenly over a given time period and forcing the aggregate demand to follow a slowly rising/falling envelope. The result is the minimization of power distribution at the flicker frequency.
REFERENCES:
patent: 3989999 (1976-11-01), Thompson et al.
patent: 4047097 (1977-09-01), Gyugyi et al.
patent: 4234842 (1980-11-01), Brennen et al.
patent: 4531086 (1985-07-01), Schmid et al.
patent: 5155740 (1992-10-01), Ao et al.
patent: 5789723 (1998-08-01), Hirst
patent: 5796245 (1998-08-01), Beaulieu et al.
Baur Bruce K.
Dalrymple John C.
Westerlund Cory A.
D'Alessandro Ralph
Gray Francis I.
Sterrett Jeffrey
Tektronix Inc.
LandOfFree
Duty cycle based AC power control with reduced voltage fluctuati does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Duty cycle based AC power control with reduced voltage fluctuati, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Duty cycle based AC power control with reduced voltage fluctuati will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1120569