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High frequency inductive lamp and power oscillator

United States Patent

6,949,887
September 27, 2005
View the Complete Patent at the US Patent & Trademark Office
An oscillator includes an amplifier having an input and an output, a feedback network connected between the input of the amplifier and the output of the amplifier, the feedback network being configured to provide suitable positive feedback from the output of the amplifier to the input of the amplifier to initiate and sustain an oscillating condition, and a tuning circuit connected to the input of the amplifier, wherein the tuning circuit is continuously variable and consists of solid state electrical components with no mechanically adjustable devices including a pair of diodes connected to each other at their respective cathodes with a control voltage connected at the junction of the diodes. Another oscillator includes an amplifier having an input and an output, a feedback network connected between the input of the amplifier and the output of the amplifier, the feedback network being configured to provide suitable positive feedback from the output of the amplifier to the input of the amplifier to initiate and sustain an oscillating condition, and transmission lines connected to the input of the amplifier with an input pad and a perpendicular transmission line extending from the input pad and forming a leg of a resonant "T", and wherein the feedback network is coupled to the leg of the resonant "T".
Kirkpatrick; Douglas A. (Great Falls, VA), Gitsevich; Aleksandr (Montgomery Village, MD)
Intel Corporation (Santa Clara, CA)
09/ 975,552
20020167282
October 12, 2001
Certain inventions described herein were made with Government support under Contract No. DE-FC01-97EE23776 awarded by the Department of Energy. The Government has certain rights in those inventions.