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Power oscillator

Patent ·
OSTI ID:873705
 [1]
  1. Montgomery Village, MD
+ Show Author Affiliations

An oscillator includes an amplifier having an input and an output, and an impedance transformation network connected between the input of the amplifier and the output of the amplifier, wherein the impedance transformation network is 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 wherein the impedance transformation network is configured to protect the input of the amplifier from a destructive feedback signal. One example of the oscillator is a single active element device capable of providing over 70 watts of power at over 70% efficiency. Various control circuits may be employed to match the driving frequency of the oscillator to a plurality of tuning states of the lamp.

Research Organization:
Fusion Lighting, Inc., Rockville, MD (United States)
DOE Contract Number:
FG01-95EE23796
Assignee:
Fusion Lighting, Inc. (Rockville, MD)
Patent Number(s):
US 6225756
OSTI ID:
873705
Country of Publication:
United States
Language:
English

References (5)

Electrical and Light Characteristics of RF-Inductive Fluorescent Lamps journal January 1994
Electrodeless lamps for lighting: a review journal January 1993
A simple analysis of an inductive RF discharge journal August 1992
Class-F power amplifiers with maximally flat waveforms journal January 1997
XLI. On the discharge of Electricity through exhausted tubes without electrodes journal October 1891

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