Screw-in transformer

Details Screw-in transformer Screw-in transformer

2006-09-05

2006-09-05

Wong, Don (Department: 2163)

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Transformer in the supply circuit

C315S206000, C315S20000A, C315S057000

Reexamination Certificate

active

07102296

ABSTRACT:
An apparatus for providing convenient transforming of electrical energy from a first voltage level to a second voltage level, includes a housing having an end wherein the end includes a conductive threading and a contact for making an electrical connection with a light bulb socket. The apparatus also includes a transformer electrically connected to the electrical connection for receiving power through the light bulb socket and transforming the received electrical energy from the first voltage level to the second voltage level. There is a connection electrically connected to outputs of the transformer to provide power at the second voltage level. The converted power can be used to power a DC-driven device such as an LED.

REFERENCES:
patent: 2279635 (1942-04-01), Morley
patent: 3401265 (1968-09-01), Dotto
patent: 4187447 (1980-02-01), Stout et al.
patent: 4518896 (1985-05-01), Miles, Jr.
patent: 5458505 (1995-10-01), Prager
patent: 6657435 (2003-12-01), Brown
patent: 6658774 (2003-12-01), Munter et al.
patent: 6946973 (2005-09-01), Yanda

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