Looking for a simple circuit to control the light intensity of Light Emitting Diodes (LEDs) or similar lighting sources? Here is an Arduino based circuit with three independent pulse width modulated ...

技术创新始终是产品变革的核心推动力之一。在LED全彩显示屏中，有一种技术为大众所熟知——“外部脉波宽度调变(外部 PWM)”。而随着市场对显示画面效果提升的需求增加，技术革新进一步发展，Scrambled PWM(简称 S-PWM)技术应运而生，为LED画面带来全新显示效果。

线性LED恒流驱动芯片采用线性调节的方式来实现恒流输出；它通常由一个电流控制回路和一个功率放大器组成；电流控制回路通过反馈机制监测并调节LED灯的工作电流，确保其恒定不变；功率放大器则负责放大电流信号以驱动LED灯。 由于LED正向伏安特性非常陡要 ...

LED照明凭借着节能、高效、长使用寿命等优势成为当下异常火热的一个领域；具有节省能源、提高生活质量、改善光源效能 ...

Here’s an Arduino library that will let you drive a very large number of LEDs. [Elco Jacobs], an electrical engineering student, is the author of the library. He has a work-study job that has him ...

I have spent at least an hour almost every day since the 80’s advancing my knowledge in electronics. Recently I brushed up my knowledge on LED fading secrets and attained something pleasant. Now, I’d ...

升级后的简易LED显示屏，保留了相同的界面，但增加了更多功能··· 图1这种设计思路展示了如何轻松地“让老树开新芽”，以及如何在之前发布的简易LED显示屏上添加一些新功能。Yfeednc 图1 升级后的简易LED显示屏，保留了相同的界面，但增加了更多功能。

Community collaboration is a great thing. Take the Arduino PWM library for shift registers. Some folks at the Arduino forum pitched in and helped [Elco] trim off a bunch of clock cycles by using the ...

Among all the Arduino boards, the Uno is most folks' go-to choice, and for good reason. It's the perfect platform to get started with Arduino, it's capable enough to handle a wide range of tasks, and ...

Freescale Semiconductor has introduced the MC34845 LED driver with high-speed pulse width modulation (PWM) capability. This six-channel device is designed to allow LED backlights to operate at ...