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Precise and accurate measurements of the DC critical current of high-Tc superconductors often require a current supply that has high input-to-output isolation, high isolation from ground and low output ripple. Also, to ensure precise current control, the
With the introduction of high Tc superconductors, a number of problems associated with critical current, Ic, measurement have arisen. THe existing Ic measurement practices were developed and proved for low Tc superconductors. There are substantial