Invention Application
WO2013111061A1 TWO-WIRE NEUTRALLESS DIGITAL DIMMER FOR LEADING-EDGE DIMMABLE LAMP DRIVER AND A METHOD OF OPERATION THEREOF 审中-公开
用于引导二极管驱动器的双线中性数字调光器及其操作方法

TWO-WIRE NEUTRALLESS DIGITAL DIMMER FOR LEADING-EDGE DIMMABLE LAMP DRIVER AND A METHOD OF OPERATION THEREOF
Abstract:
A dimmer switch (110-x, 200, 400, 600, 700A, 700B,1200) adapted to be coupled to an alternating current (AC) source and to a load so as to control an amount of power delivered from the AC source to the load, the dimmer switch may include: a triode for AC (TRIAC) (208, 408, 612) coupled between the AC source and the load, and which when triggered conducts to deliver a controlled amount of power from the AC source to the load for a corresponding half-cycle of one or more half cycles of the AC source. The dimmer switch may include first and second triggering circuits (606, 608) configured to trigger the TRIAC when charged after being enabled. One or more of the triggering circuits may be a self-balancing triggering circuit. The dimmer switch may further include a controller (412, 602, 1210) which selects and thereafter enables one or more of the first or second triggering circuits.
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