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当电子测试需要可调电流源时,人们通常必须在实验室构建这种测试仪器。人们可以从标准的力觉实验室电源轻松制作这类电流源(图1)。该电路需要一个为IC供电的额外电源以及一个单独的控制电压。
When electronic testing requires adjustable current sources, people often have to build such test instruments in the lab. One can easily make such a current source from a standard force-lab source (Figure 1). This circuit requires an extra power supply for the IC and a separate control voltage.