A recent Design Idea (DI), “Silly simple precision 0/20mA to 4/20mA converter,” by prolific DI contributor Stephen Woodward uses the venerable LM337 regulator in a creative configuration along with a ...

This Design Idea (DI) offers an alternative solution for an application borrowed from frequent DI contributor R. Jayapal, presented in: “A 0-20mA source current to 4-20mA loop current converter.” It ...

在当今工业自动化和测控系统中，4-20mA电流信号传输是一项至关重要的技术。它广泛应用于测量各类非电物理量，如温度、压力和流量，确保这些数据能够安全而有效地传递至远程控制室或显示设备。本文将深入探讨4-20mA的基本概念、工作原理、优势以及常见 ...

在工业自动化领域，测量各类非电物理量如温度、压力、速度和角度是至关重要的。为了确保这些数据能够准确地传输到远离现场的控制室或显示设备，采用了将物理量转换为模拟电信号的变送器。其中，4-20mA电流信号传输方式因其高效率和抗干扰性，成为工业 ...

Earle F. Philhower, III has just released the Raspberry Pi Pico Arduino core 4.0 with support for a range of Raspberry Pi RP2350 boards beside the official Raspberry Pi Pico 2. Add VFS to enable POSIX ...

隔离器输出的4-20mA一个重要的性能指标是带载能力，不同品牌的隔离器带载能力有所差异，但输出4-20mA带载能力都能达到250欧以上。 这个是什么意思呢？假如今天看到一款隔离器的带载是350欧，就是说4-20mA输出端最大可以接阻值为350欧的负载。这个负载的阻值 ...

昨天发了一个文章，收到了很多的回复，微信上面也是陆陆续续的有人发消息给我。太感动了/(ㄒoㄒ)/~~ 太多了，感谢大家 ...

Add a description, image, and links to the 4-20ma topic page so that developers can more easily learn about it.

The concept of automation is getting popularity among people these days and many of them control their lighting, climate, etc remotely at their homes. Several microcontrollers or microprocessors can ...