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 ...

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 ...

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 ...

LED 是通过 1 – 10 V 模拟电压、电源相位角、电源线、DALI 等数字输入或 WLAN 链路调暗的，实际上只有两种方法可以真正调暗 LED ...

Most projects are built on abstractions. After all, few of us can create our own wire, our own transistors, or our own integrated circuits. A few months ago, [Julian Ilett] found a problem using the ...

In adding an alternative cutter drive motor (‘spindle’) to an existing cnc machine, an electrically isolated pwm to analogue converter is needed. The machine uses a ‘grbl’ controller, which has an ...