公开(公告)号：US20120249010A1

公开(公告)日：2012-10-04

申请号：US13368990

申请日：2012-02-08

申请人： Gregg Hollingsworth ,  David Wetle ,  Sandeep Mudunuri ,  Gary Adishian

发明人： Gregg Hollingsworth ,  David Wetle ,  Sandeep Mudunuri ,  Gary Adishian

IPC分类号： H05B41/24

CPC分类号： H05B41/2806 ,  Y02B20/22

摘要： The present disclosure relates to apparatuses and methods to control an electrodeless plasma light source. In various embodiments, an apparatus is provided that includes an electrodeless plasma lamp with a lamp driver circuit. The lamp driver circuit may include a voltage-controlled oscillator to provide radio frequency power to the electrodeless plasma lamp. A radio frequency power detector is coupled to an output of the voltage-controlled oscillator to detect a level of reflected power from the electrodeless plasma lamp. A microprocessor is configured to receive signals from the radio frequency power detector and control a frequency of the voltage-controlled oscillator to minimize the reflected power from the electrodeless plasma lamp.

摘要翻译： 本公开涉及控制无电极等离子体光源的装置和方法。 在各种实施例中，提供一种包括具有灯驱动电路的无电极等离子体灯的装置。 灯驱动器电路可以包括压控振荡器，以向无电极等离子体灯提供射频功率。 射频功率检测器耦合到压控振荡器的输出，以检测来自无电极等离子体灯的反射功率的水平。 微处理器被配置为从射频功率检测器接收信号并且控制压控振荡器的频率以最小化来自无电极等离子体灯的反射功率。