Industry Patents

Patent: 7638951

Plasma Lamp With Stable Feedback Amplification and Method Thereof

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Patent Number: 7638951 
Title: Plasma Lamp With Stable Feedback Amplification and Method Thereof 
Abstract: A plasma lamp with a positive-loop feedback topology, having a resonating waveguide body and at least one amplifier critically coupled to the body which is stable under all operating conditions both before a plasma is formed and after the plasma reaches steady state. An iterative method for configuring the lamp circuit includes determining the load trajectory of each amplifier under all operating conditions, and overlaying it on a polar-plot showing regions of stability, conditional stability, and instability. If the load trajectory passes through an unstable region, circuit alterations are made to avoid that region.  
Country of Issue: US 
First Named Inventor: DeVincentis, Espiau, Chang 
Assignee: Luxim 
Continuation or Divisional of:  
International Classification: H05B 41/16 
US Classification: 315/248 
Issue Date: 12-29-2009 
Filing Date: 10-27-2006 
Application : 11/553881 
Notes:  
Link to Patent at freepatentsonline.com: 7638951 at Freepatentsonline 
Link to World Patent Family1: World Patent Family at European Patent Office 
Link to Google Patents1: 7638951 at Google Patents 

 

1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.

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