| 摘要 |
PURPOSE:To attain effective use of a down edge trigger signal current as a timing signal by obtaining the down edge trigger signal current rising attended with the fall of the current of a power supply of a phase of the power supply applied to control terminal at a load impedance connecting to the output terminal of a switching gate. CONSTITUTION:A static circuit network of a 4-junction closed loop Josephson switching gate 10 consists of a superconducting line having a series circuit of 1st and 2nd Josephson junctions J1, J2 and a superconducting line having a series circuit of 3rd and 4th Josephson junctions J3, J4 and the two superconducting lines are connected at both ends. All the Josephson junctions J1-J4 are switched into a voltage state to supply a gate current to a load impedance through an output terminal TL, resulting that a down edge trigger signal current triggered by a trailing edge of the control current and rising thereby is obtained as required. Thus, the timing signal effective to the Josephson circuit system is obtained rationally. |
