Electric heating – Heating devices – With power supply and voltage or current regulation or...
Patent
1979-07-06
1983-03-22
Reynolds, Bruce A.
Electric heating
Heating devices
With power supply and voltage or current regulation or...
219216, 219492, 219505, 219489, 307252UA, 323235, H05B 102
Patent
active
043777392
ABSTRACT:
A power control method and apparatus maintains a constant average power at an electrical load, such as a fuser in an electrophotocopy machine. A power monitor measures the average power delivered to the load and compares the measured power to a predetermined power. A digital network receives an input signal from the power monitor and controls the coupling of power from an ac source to the load. When load power is less than a predetermined level, the digital network couples every half cycle of the ac power source to the load. When the load power is equal to or greater than the predetermined power, the digital network couples every third ac half cycle to the load. As a result, only half cycles of sequentially opposite polarity are coupled to the load.
REFERENCES:
patent: 3532855 (1970-10-01), Van Cleave
patent: 3553428 (1971-01-01), McGhee
patent: 3584291 (1971-06-01), Budniak et al.
patent: 3651753 (1972-03-01), Schmidt
patent: 3878358 (1975-04-01), Baston et al.
patent: 3925688 (1975-12-01), Kalfus
patent: 3937921 (1976-02-01), Furuichi et al.
patent: 4010412 (1977-03-01), Forman
patent: 4029937 (1977-06-01), Russell
patent: 4086466 (1978-04-01), Scharlack
Eckert, Jr. Alton B.
Pritchett Wayne W.
Paschall M. H.
Pitney Bowes Inc.
Reynolds Bruce A.
Scribner Albert W.
Soltow, Jr. William D.
LandOfFree
Average power control apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Average power control apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Average power control apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1870576