| 摘要 |
PURPOSE:To stabilize the rectified output of the rectifying circut by composing the rectifying circuit of a Josephson junction element, thereby eliminating the adverse effect of thermal noise thereto. CONSTITUTION:When a bias current IB from a constant-current source 101 and an AC current IV from an AC power source 30 are applied to the Josephson junction element 60, the bias magnetic field HB formed by the respective currents, a control magnetic field HV and the composite magnetic field H7 become as shown. As obvious from the drawing, the element 60 becomes superconductive state when the composite magnetic field H7 exceeds a predetermined value PC and becomes ordinary conductive state when the magnetic field is less than the value PC, and the status change thus responds to the AC signal V. Thus, the voltage VO is produced at the output terminal 61 of the element 60, smoothed by a smoothing circuit 71, and a DC voltage VS is thus obtained.
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