Patents Assigned to Ternational Rectifier Corporation
  • Patent number: 6747300
    Abstract: A fully protected H-bridge for a d-c motor consists of two high side MOSFETs and a control and logic IC on a first conductive heat sink all within a first package and two discrete low side MOSFETs. The entire bridge is controlled by the IC. Shoot thru protection is provided for each leg, and a PMW soft start sequence is provided through the control of the low side MOSFETs, programed by an external, chargeable RC circuit. Input signals to the high side MOSFETs select the operation modes. Protective circuits are provided for short circuit current and over current conditions. Sleep mode and braking/non braking control is also provided.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: June 8, 2004
    Assignee: Ternational Rectifier Corporation
    Inventors: Bruno C. Nadd, Vincent Thiery, Xavier de Frutos, Chik Yam Lee