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2. 发明授权

US07667991B2 Sine wave lamp controller with active switch commutation and anti-flicker correction 失效
标题翻译：正弦波灯控制器，主动切换换向和防闪烁校正
公开(公告)号：US07667991B2
公开(公告)日：2010-02-23
申请号：US11780318
申请日：2007-07-19
申请人： Gregory E. Leyh
发明人： Gregory E. Leyh
IPC分类号： H02M7/5387
CPC分类号： H05B41/282 , H05B41/3927 , Y02B20/183 , Y10T307/76
摘要： A pulse width modulated half bridge dimming controller is provided for dimming a lighting ballast is described. The top half of the bridge is comprised of two switches, the top switch set, and the bottom half of the bridge is comprised of two switches, the bottom switch set. Each switch also has a diode in parallel with it. The drivers for the switches are configured so that each of the switches can be turned on and off independently of all of all the other switches. Preferably, the controller is capable of operating in all four quadrants. In one preferred embodiment the switches are IGBTs. The switches are controlled in a manner so that when one of the switches sets changes states, the second switch set has one switch on and one switch off, so that one of the diodes in the second switch set is disposed to block shoot through and provide a path to allow current to continue flowing in the inductive load.
摘要翻译：提供了用于调光照明镇流器的脉宽调制半桥调光控制器。桥的上半部分由两个开关组成，顶部开关组，桥的下半部分由两个开关组成，即底部开关组。每个开关还具有与其并联的二极管。配置交换机的驱动程序，使得每个开关可以独立于所有其他开关打开和关闭。优选地，控制器能够在所有四个象限中操作。在一个优选实施例中，开关是IGBT。以这样的方式控制开关，使得当开关中的一个设置改变状态时，第二开关组具有一个开关并且一个断开，使得第二开关组中的二极管中的一个被设置成阻断拍摄并提供允许电流在感性负载中继续流动的路径。

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