The Bipolar Junction Transistor The term Bipolar is because two type of charges (electrons and holes) are involved in the flow of electricity The term Junction is because there are two pn Junctions There are two configurations for this device n-type p-type n-type

L Electrically Isolated Package 5500A Pressure Contact Construction T(AV)(per arm) 190A International Standard Footprint 3000v Alumina(non-toxic)Isolation Medium

MP02XXX190 Series Phase Control dual scr. scr/ diode modules es January 2000 version, DS4479-40 Ds44795.0July2002

ECL门的优点是速度快,因为它不用饱和态。 另一优点是工作电流平稳,没有动态尖峰。ECL门的缺点是高、低电平太接近(约0.8V) 抗干扰能力差。另一个缺点是功耗较大

上海交通大学：《电气与电子测量技术》精品课程教学资源（课件讲稿）第六章 数字化测量技术（数字化电气测量系统设计）

一、概述 (1)事故情况下,系统可能产生严重的有功缺额,因而导致系统频率大幅度下降。 (2)所缺功率已经大大超过系统热备用容量,只能在系统频率降到某值以下,采 取切除相应用户的办法来减少系统的有功缺额,使系统频率保持在事故允许 的限额之内

前面已经谈到,调频是二次调节,用自动改变功率给定值增量P,即上下 平移调速器的调节特性的方法,使频率恢复到额定值。调速器的控制电动机称 为同步器或调频器,功率给定值增量△P不同,同步器或调频器就上下平移调 速器的调节特性。它是一个积分环节,只有在输入信号为零时,才不转动,停 止调节

Patented free-floating silicon technology Low on-state and switching losses Designed for traction, energy and industrial applications Optimum power handling capability Blocking

he World's Largest-Capacity 8kV/3.6kA Light-Triggered Thyristor by Katsumi sato* Mitsubishi Electric has developed an 8kV/3.6kA light-triggered thyristor (LTT) based on a six inch wafer for power-converter applications in igh-voltage DC transmission and back-to-back systems. New design features give the device

第8章相量法 重点: 1.正弦量的表示、相位差; 2.正弦量的相量表示 3.电路定理的相量形式;