Abstract：According to the driving principle of SNS type two-way Josephson junction and the segmentation characteristics of the array, a balanced ternary driving algorithm was proposed to realize the fast calculation of the bias state of the two-way Josephson junction array.According to the bias state and combination of Josephson junction array, the voltage value of the two-way step wave AC quantum voltage was accurately synthesized by using the node voltage method.Finally, AC quantum voltage output with a minimum resolution of 2 knots and a valid bit of 15 bits was realized.The results of two-way AC quantum voltage mutual test showed that the maximum error of the synthesized AC quantum voltage was 0.06μV, and the phase difference between the two channels was 0.02μrad, which proved that the synthesized two-way AC quantum voltage has high amplitude accuracy and good phase synchronization.
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