Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Accelerator for a read-channel design and simulation tool
Method for decoding a spatially multiplexed data signal using a maximum likelihood detection
System and method for ranking content and applications through human assistance
Power device and method of packaging same
Hepatitis C virus inhibitors
Packet bundling at the PDCP layer
Digital media content distribution
  Randomly Featured Patents
Device and method for computer-assisted learning
Adjustment apparatus capable of remembering screen viewing angle
System for conducting business over the internet
Tape cutter
Method and apparatus for estimating channel using phase compensation in wireless communication system
Audio-on demand communication system
Gaming device and method featuring chess indicia
Polymer prepared from octadienol and unsaturated dicarboxylic acid, process of preparing the same, and coating composition prepared therefrom
Method and apparatus for controlling liquid pressure in pipelines
High moisture retaining bars compositions comprising borax as water structurant