At signal magnify part, choosing high resistance and low noise field-effect tube amplified IC instead of fielcbeffect transistor increases its interference immunity and stability significantly. 信号放大部分采用高阻抗低噪声集成场效应管放大集成电路取代场效应管放大,大幅提高了仪器的抗干扰能力和稳定性。
The operation principle of switch type field-effect tube DC&. pulse are welding power source and the principle of getting pulse out-put are introduced in this peper. 本文主要介绍新型开关式场效应管直、脉两用弧焊电源的工作原理;
Study on Field-effect Tube Inverter Arc Welding Power Source 场效应管逆变式弧焊电源的研究