Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Electronic ballast with inverter protection and relamping circuits










Image Number 9 for United States Patent #5770925.

An electronic ballast (10) for powering at least one gas discharge lamp (20) comprising an AC-to-DC converter (100), an inverter (200), an output circuit (300), a relamping circuit (400), and an inverter protection circuit (500). Protection circuit (500) shuts down the inverter (200) in response to lamp removal or lamp failure. Following replacement of a failed lamp with an operational lamp, relamping circuit (400) provides restarting of the inverter (200) and ignition of the operational lamp by momentarily disabling the inverter protection circuit (500).








 
 
  Recently Added Patents
Mechanisms for marking the orientation of a sawed die
Home appreciation participation notes
Display screen or portion thereof with animated graphical user interface
Systems and methods for unchoked control of gas turbine fuel gas control valves
Modular utility rack
Transcoded images for improved trick play
DL control channel structure enhancement
  Randomly Featured Patents
Photodiode with controlled current leakage
Spectroscopic method and apparatus for measuring sugar concentrations
Arrangement for preparation of a fuel for combustion
Selection of livestock using IGF levels
Dual band antenna
Image transfer and sheet separation apparatus for electrophotographic system
Circuits and methods of thermal gain compensation
Device for securing spinal rods
Method and device for regulating a wind machine
Persicaria plant named `Red Dragon`