EDN电子技术设计

别让等效串联电阻（ESR）浪费电能并损耗电容器

理想电容器在现实世界中有一个重要参数，称为等效串联电阻(ESR)。ESR对基本的直流电路可能影响不大，却会影响开关电源或RF电路的实际性能。此外，ESR还会产生热功耗，浪费电能，增加系统的热负荷。 记得还在学校时，我们从电气工程基础课上了解到 ...
EDN电子技术设计

强大的555计时器和ESR电容表

让我们看看如何有效地将普通555计时器的输出灌(sink)电流增加一倍。xMLednc 从图1的框图(取自ST的TS555低功耗单CMOS计时器的数据表)中，我们可以看到放电引脚(pin7)与输出引脚(pin3)重复。实际上，它们只同时处于“低”(Low)状态。而在“高”(High)状态下，输出引脚 ...
Digital Trends

ESR Gear has all of the accouterments you need to level up your tech

This content was produced in partnership with ESR Gear. Most chargers and power-delivery devices, like wireless charging pads or stands, are functional yet simple. There are a few out there that do ...
Cult of Mac

Your bedside table deserves this 3-in-1 charging station [Review]

A multidevice charger like the ESR Qi2 3-in-1 Wireless Charging Station is a must-have, especially if you own an iPhone, Apple Watch and AirPods. A 3-in-1 charger removes the hassle of dealing with ...
Cult of Mac

Affordable new Qi2 wireless charger lineup keeps gadgets going

Accessories brand ESR stocked a new collection of Qi2 chargers for iPhone and other devices this week on Amazon. It should help you charge at MagSafe speed levels, but ESR Qi2 wireless chargers come ...