LED电路驱动器的混合类型和数量

摘要：本应用笔记介绍一种技术，它允许你混合LED的数量和类型，并要求只有一个电源电压。

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Keywords: WLED, White LED, active ballast, current mirror, LED, boost, LED driver, transistor

Jan 24, 2003
APPLICATION NOTE 1862
Circuit Drives Mixed Types and Quantities of LEDs
Abstract: This application note presents a technique that allows you to mix LED quantities and types, and requires just one power-
supply voltage.

A similar version of this article appeared in the October 3, 2002 issue of EDN magazine.

Portable systems often use LEDs of differe