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高电压LED驱动器提供软件控制强度

资料介绍
摘要:该电路适应的雪崩光电二极管偏置电源IC (APDS)驱动高压的LED串,从而提供可调电流,软件关机,和逻辑开路故障指示。

Maxim > App Notes > DISPLAY DRIVERS

Keywords: DACs, D/A converters, LED drivers, software-controlled light intensity Mar 14, 2005

APPLICATION NOTE 3445
High-Voltage LED Driver Provides Software-Controlled Intensity

Abstract: This circuit adapts a bias-supply IC for avalanche photodiodes (APDs) to drive a high-voltage string
of LEDs, thereby providing adjustable current, software shutdown, and logic indication of open-circuit faults.

Recent advances in operating efficiency have expanded the use of LEDs from mere indicators to being a driving
force in electronic lighting. Increased reliability and ruggedness (compared to other lighting technologies) gives
the LED a bright future, indeed. Many ICs have been introduced in recent years for driving LEDs, but the issue of
d……
高电压LED驱动器提供软件控制强度
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