LED Driver Based on Boose-buck Topology
Author(s): Yao Shuai, Yu Guiying
Pages: 24-27
Year: 2009 Issue: 3
Journal: China Illuminating Engineering Journal
Keyword: AT9930; 升降压拓扑; 开关型变换器; 脉宽调制;
Abstract: 采用AT9930芯片,设计了一款车载LED驱动电路,其驱动、拓扑、调光方式分别采用更具优势的开关型变换器、boost-buck(升降压型)拓扑和PWM(脉宽调制)方式.实验证明,该驱动电路具有输入电压范围宽,恒流精度高,可靠性高、EMI(电磁干扰)低等特点.
Pages: 24-27
Year: 2009 Issue: 3
Journal: China Illuminating Engineering Journal
Keyword: AT9930; 升降压拓扑; 开关型变换器; 脉宽调制;
Abstract: 采用AT9930芯片,设计了一款车载LED驱动电路,其驱动、拓扑、调光方式分别采用更具优势的开关型变换器、boost-buck(升降压型)拓扑和PWM(脉宽调制)方式.实验证明,该驱动电路具有输入电压范围宽,恒流精度高,可靠性高、EMI(电磁干扰)低等特点.
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