V2EX triac

Triac

定义 Definition

TRIAC(双向可控硅)是一种三端半导体开关器件,可在交流电的正、负半周双向导通,常用于调光器、调速器、温控器等交流功率控制电路。(除功率控制外,在某些电路中也可用于交流开关与相位控制。)

例句 Examples

A triac can control the brightness of a lamp.
TRIAC 可以控制灯的亮度。

In this circuit, the triac is triggered near the zero crossing to reduce electrical noise.
在这个电路中,TRIAC 在接近过零点时被触发,以减少电气噪声。

发音 Pronunciation (IPA)

/tra.k/

词源 Etymology

triac 通常被解释为由 tri-(“三、三端”)与 AC(alternating current,交流电)组合而来,强调它是一种用于交流电控制的三端器件;该名称在电力电子与元器件命名体系中逐渐固定下来。

相关词 Related Words

文学与著作中的用例 Literary Works

  • The Art of Electronics(Horowitz & Hill)在交流负载控制与功率器件应用章节中讨论 TRIAC 等器件。
  • Power Electronics: Converters, Applications, and Design(Mohan, Undeland, Robbins)介绍包括晶闸管、TRIAC 在内的功率半导体与相位控制。
  • 各大半导体厂商的 TRIAC 数据手册与应用笔记(如 ST、onsemi、NXP 等)大量出现 “triac” 并给出触发、电路与安全应用说明。
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