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










Image Number 5 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
Protocol delay measuring device and protocol delay measuring method
Reframing circuitry with virtual container drop and insert functionality to support circuit emulation protocols
Method for combining images and magnetic resonance scanner
Redundant parallel operation of motor vehicle electrical system generators
Transparent zebrafish and preparation method thereof
Process to increase selectivity to ethylene in oxygenates-to-olefins conversions
Methods of saccharification of polysaccharides in plants
  Randomly Featured Patents
Localized strain relaxation for strained Si directly on insulator
Radioactive iodine-labeled compound
3D machine vision measuring system with vehicle position adjustment mechanism for positioning vehicle
Apparatus and method for booting a system
Window lifter
Neutral attainment control system/method for controlling shifting in vehicular automated mechanical transmission systems
Imaging system with transmit apodization using pulse width variation
Dental and medical primer formulations containing tissue infiltrating agents
Permanent seal ring for a nuclear reactor cavity
Fuel compositions comprising coal-liquid fuel mixture