Control circuit of the decorative light sets

Details Control circuit of the decorative light sets Control circuit of the decorative light sets

1988-10-13

1989-12-26

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Plural load circuit systems

Serially connected load circuits

307 11, 307 38, 307 41, 315185S, 315320, 315323, H05B 3702

Patent

active

048900001

ABSTRACT:
A digital control circuit for controlling the illumination of a plurality of lamp bulbs to create a decorative light display. The circuit includes a rectifier for converting alternating current to direct current as power for the digital elements of the control circuit and for the lamp bulbs of the display. The display is formed by a plurality of strings of series connected lamp bulbs each of which strings is supplied d.c. power through individual SCRs. The control circuit includes two oscillators, two decoders and a carry-out control which generate two different sequences of output signals at two different frequencies. The two sequences of output signals from the control circuit are each applied through isolating diodes and individual trigger circuits to the gate electrodes of the SCRs, causing the SCRs to conduct and illuminate each of the strings of lamps in sequences corresponding to the sequences of control circuit output signals.

REFERENCES:
patent: 3740570 (1973-06-01), Kaelin et al.
patent: 3845615 (1974-11-01), Cake
patent: 4016474 (1977-04-01), Mason
patent: 4215277 (1980-07-01), Weiner et al.
patent: 4262213 (1981-04-01), Eichelberger et al.
patent: 4264845 (1981-04-01), Bednarz
patent: 4284926 (1981-08-01), Dinges
patent: 4388567 (1983-06-01), Yamazaki et al.
patent: 4390814 (1983-06-01), Peek
patent: 4417182 (1983-11-01), Weber
patent: 4713586 (1987-12-01), Chiang
patent: 4780621 (1988-10-01), Bartleucci et al.

Affiliated with

Also associated with

Rating

Control circuit of the decorative light sets does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control circuit of the decorative light sets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control circuit of the decorative light sets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1578379