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Operating Conditions for a Pulse-Quantized AC and DC Bipolar Voltage Source



Samuel Benz, Charles J. Burroughs, Todd E. Harvey, Clark A. Hamilton


We have developed an accurate ac and dc bipolar voltage source based on the quantized pulses of Josephson junctions. A factor-of-6 increase in output voltage over previous unipolar waveforms is achieved by generating bipolar waveforms where arrays of junctions are biased with both a broadband two-level digital code and a sine wave. We use simulations to determine the optimum operating conductions as a function of frequency and as a function of the phase difference between the digital code and the sinusoidal drive.
IEEE Transactions on Applied Superconductivity


digital/analog converter, Josephson juction, quantization, superconductivity, voltage standard


Benz, S. , Burroughs, C. , Harvey, T. and Hamilton, C. (1999), Operating Conditions for a Pulse-Quantized AC and DC Bipolar Voltage Source, IEEE Transactions on Applied Superconductivity, [online], (Accessed July 17, 2024)


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Created May 31, 1999, Updated October 12, 2021