The solved technical proposal is that it contains a metal shell, a light sensitive cell, a resistor array, an operation amplifier and a digital display. 解决的技术方案是:包括金属外壳、光电池、电阻排、运算放大器、数码显示器;
A light sensitive gate, a over voltage protection device, a turn on protection resistor as well as dv/ dt protection function are all integrated in the single chip through a special design. 通过特殊的结构和工艺设计,在器件的内部集成了光敏触发区、内部过压保护器和内置保护电阻,使其具有正向恢复和dv/dt的保护功能。