Patents Assigned to Silec-Semi-Conducteurs, Societe Anonyme
  • Static switch controller synchronized with a passage to zero of the supply voltage
    Patent number: 3961235
    Abstract: A static switch controller synchronized with a passage to zero of the supply voltage, and which is insensitive to spurious firing currents is disclosed. A static switch is controlled by a control circuit having output terminals and input terminals. An alternating rectified voltage is applied across the output terminals and a closing signal is applied across the input terminals. The control circuit comprises a thyristor and a blocking circuit which blocks the cathode of the thyristor when the rectified voltage exceeds a threshold value.
    Type: Grant
    Filed: August 15, 1974
    Date of Patent: June 1, 1976
    Assignee: Silec-Semi-Conducteurs, Societe Anonyme
    Inventor: Maurice Sauvanet