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文章主要介绍程控正弦功率电压源和电流源校表仪的原理。
This paper describes the principle of sin voltage source and current source that can be programme controlled.
设计了一种可程控功率源，其特点是可输出大功率的恒定电流和恒定电压，波形参数和输出变化方式可由程序控制输出；
The system is so designed and then the key ICs are choose carefully. A controllable power source is designed in this paper.
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