LED驱动器应用中升压转换器的简单开路保护

LED驱动器应用中升压转换器的简单开路保护
Texas Instruments Incorporated Power Management




Simple
LED open-circuit protection for boost
驱动器应用中升压转换器的简单开路保护
converters in LED driver applications
作者：John Caldwell，
John Caldwell, Analog Applications Engineer,
德州仪器 (TI) 模拟应用工程师和 Gregory Amidon 德州仪器 (TI) 模拟应用工程师
and Gregory Amidon, Analog Field Applications Engineer
引言
Introduction 配置结构中，利用一个分压器产生电路的反馈电压 VFB，
boost configuration, the output voltage, VOUT, is monitored
One method for driving high-brightness LEDs is to modify by using a voltage
从而对输出电压 d