The triangle wave generator, which is composed of FET and operational amplifier circuit, is applied to trigger circuit of automatic phase - shift of flash lamp. It solves the technical problem to view the high frequncy vibrator.

• 场效应管与运算放大器组成的三角波信号发生器,用于频闪灯触发信号的自动移相,解决了观察高频振动物体的关键技术问题。