Power proportioning controller for solid state relays

Details Power proportioning controller for solid state relays Power proportioning controller for solid state relays

1987-04-03

1987-12-15

Salce, Patrick R.

Electricity: power supply or regulation systems

External or operator controlled

Phase controlled switching using electronic tube or a three...

323324, 323351, G05F 145

Patent

active

047136014

ABSTRACT:
An economical astable multivibrator circuit provides a variable frequency, variable duty cycle digital signal for controlling a solid-state relay to provide power proportioning. An optical isolator receives analog input signals and converts those signals into a variable resistance signal for altering the RC time constant of the charge/discharge timing circuit. The controller is capable of driving several solid-state relays simultaneously and includes a powerstat adjustment for manually adjusting the range of power delivered to a load.

REFERENCES:
patent: 3745378 (1973-07-01), Pritchett
patent: 3879652 (1975-04-01), Billings
patent: 3979654 (1976-09-01), Guicheteau et al.
patent: 3980939 (1976-09-01), Greer
patent: 3990000 (1976-11-01), Digneffe
patent: 4121149 (1978-10-01), Seltzer
patent: 4129791 (1978-12-01), Sato
patent: 4174496 (1979-11-01), McFall et al.
patent: 4287468 (1981-09-01), Sherman
patent: 4290006 (1981-09-01), Wallace
patent: 4400613 (1983-08-01), Popelish
patent: 4419586 (1983-12-01), Phipps
patent: 4463269 (1984-07-01), Yashima
George Instrument Catalog "Solid State of the Art" Opto 22, 1979.
International Rectifier "Crydom" Product Digest 1982/83, Bulletin 3000F.
Douglas Randall, Div. of Kidde, Inc., "Solid State Proportional Controls" brochure 3-82 5M.

Affiliated with

Also associated with

Rating

Power proportioning controller for solid state relays 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 proportioning controller for solid state relays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power proportioning controller for solid state relays will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1222449