Resources Contact Us Home
Lighting circuit for electric discharge lamp

Image Number 15 for United States Patent #4544862.

A lighting circuit for an electric discharge lamp according to the present invention is constructed in such a way that a switching device is provided at an output terminal of a high frequency inverter which produces a substantially sinusoidal output voltage, and that, by controlling this switching device, an output to the low pressure electric discharge lamp is stopped at the rising part of the abovementioned output voltage in its half cycle, while the output is supplied to the low pressure electric discharge lamp at the voltage level in the vicinity of the maximum instantaneous value thereof. By use of the high frequency inverter of a smaller capacity and less radio noise than those in the conventional device, the operating efficiency of the low pressure electric discharge lamp can be increased.

  Recently Added Patents
Summarization of short comments
People engine optimization
System and method for providing restrictions on the location of peer subnet manager (SM) instances in an infiniband (IB) network
TV wall mount
Method for determining an object class of an object, from which light is emitted and/or reflected to a vehicle
Method, apparatus, computer program, and computer readable storage media for controlling the insertion of tab sheets into a print job
Base station synchronization for a single frequency network
  Randomly Featured Patents
Process for the stabilization of hexamethyl-cyclotrisiloxane and the stabilized compositions resulting therefrom
Garden refuse shredding apparatus
Automatic gain controlled amplifier apparatus
Microwave holographic measuring method and apparatus
Low noise method and apparatus for driving electroluminescent panels
Process and system for the conversion of thermal energy from a stream of hot gas into useful energy and electrical power
Method of producing amorphous polyolefins with a wide mole weight distribution
Release bearing including replaceable bush
Image forming apparatus
Flicker free infrared simulator with resistor bridges