Discharge lamp unit with RF shield primary coil

Details Discharge lamp unit with RF shield primary coil Discharge lamp unit with RF shield primary coil

1998-01-27

2000-04-11

Day, Michael H.

Electric lamp and discharge devices

With envelope

Having a connector

315276, 315 57, 439620, 361674, H01F 2732

Patent

active

060491639

ABSTRACT:
A discharge lamp unit has a housing provided with a lamp socket fitted thereon and accommodating a printed circuit board with a lamp lighting circuit and a high voltage generating transformer assembly mounted thereon. The transformer assembly consists of a primary coil being a plate conductor spirally wound around a coil case containing a secondary coil-wound bobbin with a core inserted in a hollow center thereof. The discharge lamp unit is formed as a single solid device by potting all of the components in the housing with insulating resin poured in a melted state and solidified therein. This unit is easy to mount with no need for laying a high-voltage between the circuitry and the lamp socket, and includes a very compact and light transformer having an increased conversion efficiency of the primary and secondary coils.

REFERENCES:
patent: 3894266 (1975-07-01), Sovza

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