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发明名称
驱动LED的单级数位功率转换器SINGLE-STAGE DIGITAL POWER CONVERTER FOR DRIVING LEDS
摘要
本发明系揭示一种用以驱动许多数目的发光二极体(LED)之单级功率转换器,该功率转换器转换一交流(AC)输入电压为直流电流源并调整流入该LED之该电流。此外,该AC输入电流系被控制以具有一与该DC输入电压同步化的正弦波型,使得AC输入功率因数被校正。因此,藉着使用一单一功率转换级可同时获得功率因数校正(PFC)与LED电流调整,达到更高效率与低成本。
申请公布号
TW200704284
申请公布日期
2007.01.16
申请号
TW095109665
申请日期
2006.03.21
申请人
费尔契德半导体公司
发明人
吴英桓;梅杜 拉雅海瑞
分类号
H05B41/24(2006.01)
主分类号
H05B41/24(2006.01)
代理机构
代理人
林志刚
主权项
地址
美国
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