Monolithically Integrated Light Feedback Control Circuit for Blue/UV LED Smart Package

Zahra Kolahdouz Esfahani,Massoud Tohidian,Henk van Zeijl,Mohammadreza Kolahdouz,G.Q. Zhang

IEEE Photonics Journal（2017）

引用 2|浏览8

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摘要

Given the performance decay of high-power light-emitting diode (LED) chips over time and package condition changes, having a reliable output light for sensitive applications is a point of concern. In this study, a light feedback control circuit, including blue-selective photodiodes, for blue/ultraviolet (UV) LED, has been designed and implemented using a low-cost seven-mask BiCMOS process. The fee...

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关键词

Light emitting diodes,Photodiodes,Power transistors,Feedback control,Feedback circuits,Transistors,Lighting

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