Accessory circuit structure for a low-pressure discharge lamp, t

Details Accessory circuit structure for a low-pressure discharge lamp, t Accessory circuit structure for a low-pressure discharge lamp, t

1985-09-23

1987-04-07

Dixon, Harold

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Discharge device load

174 685, 315 58, 315 62, 336200, 336223, H01J 744

Patent

active

046563954

ABSTRACT:
To facilitate assembly of tiny cores used in accessory circuitry for a flescent lamp, bases of two transistors (20, 20') are connected to inductive windings on a core (2) which is retained by a primary winding (3) on the printed circuit (PC) board (1). The windings connected to the bases are formed by U-shaped wires surrounding the core which--preferably--is a toroidal core. The windings may include a resistor (8, 8') located within the toroidal core to heat quickly and, also, heat the core, the resistor extending at right angles to the PC board and forming one leg of the U-shaped conductor legs forming the impedance winding around the core.

REFERENCES:
patent: 3092786 (1963-06-01), Bayne
patent: 3155875 (1964-11-01), Wenrich et al.
patent: 3611021 (1971-10-01), Wallace
patent: 3753071 (1973-08-01), Engel et al.
patent: 4103267 (1978-07-01), Olschewski
patent: 4249229 (1981-02-01), Hester
patent: 4455545 (1984-06-01), Shelly
patent: 4522671 (1985-06-01), Griinwald

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