Control circuit

Details Control circuit Control circuit

1991-07-31

1993-03-16

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Current and/or voltage regulation

315362, 307140, 307141, H05B 4136, H01H 4300

Patent

active

051947811

ABSTRACT:
A control circuit (C) for controlling fluorescent lamps (102, 104 & 106) from a switch (S) having "open" and "closed" positions. The circuit senses whether the switch is (i) open, (ii) closed within less than approximately 0.5 seconds of last being opened, or (iii) closed for the first timne or after a time greater than approximately 0.5 seconds after last being opened, and produces one of three output signals respectively dependent thereon. The control circuit uses only a conventional two-position switch and conventional wiring and avoids the need for additional switches and additional wiring.

REFERENCES:
patent: 3940660 (1976-02-01), Edward
patent: 4345233 (1982-08-01), Matthies
patent: 4584519 (1986-04-01), Gruodis
patent: 4645731 (1987-09-01), Pierce
patent: 4668877 (1987-05-01), Kunen

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