Title :
New developments in dimmable LED driver controllers
Author :
Liang Yan ; Chen, Bob
Author_Institution :
Power Conversion Bus. Group, Dialog Semicond. Inc., Shanghai, China
Abstract :
Phase-cutdimmable LED driver development has progressed significantly over the past few years with single-stage power converters becoming the mainstream choice for lamp drivers. This paper presents a review of the key problems related to leading-edge and trailing-edgedimmer compatibility. Several input current control methods are discussed and compared based upon their impacts on dimming performance. It also discusses the pros and cons of three power conversion topologies in dimming applications. An integrated circuit controller, which exemplifies the latest control technology, is introduced at the end.
Keywords :
driver circuits; light emitting diodes; dimmable LED driver controllers; input current control methods; integrated circuit controller; phase-cutdimmable LED driver development; power conversion topologies; trailing-edgedimmer compatibility; Capacitors; Current control; Light emitting diodes; Switches; Thyristors; Topology; Voltage control; Integrated Circuit; LED driver; Phase-cut dimming; Solid State Lighting;
Conference_Titel :
Solid State Lighting (SSLCHINA), 2014 11th China International Forum on
Print_ISBN :
978-1-4799-6696-7
DOI :
10.1109/SSLCHINA.2014.7127229
