AC CHARACTERISTICS OF A MAGNETICALLY CONTROLLED SUPERCONDUCTING SWITCH AND A HALF-WAVE RECTIFIER CIRCUIT

This paper describes experimental and theoretical considerations on sw itching characteristics of a magnetically controlled superconducting s witch in an experimental circuit which is composed of the superconduct ing gate wire (which has two state of on and off), a load resistor and an AC current source of sinusoidal wave. When the frequency of the AC current source is low, the switching characteristics can be understoo d by the characteristics for a DC current source which is already repo rted. When the frequency is high, they cannot. It leads that the speci fic heat of the gate wire must be considered, however it need not for the case of a DC current source. This paper also shows a half-wave rec tifier circuit by use of the switch. We show the experimental results and the conditions that the circuit can be operated as a rectifier cir cuit.