Electron Tube Patents (Class 327/289)
  • Patent number: 5642001
    Abstract: An overdrive circuit having a first current source which supplies an overdrive current and a second current source which supplies an ordinary current smaller than the overdrive current. A first circuit operates the first current source that supplies the overdrive current for a predetermined time period after the start of current supply. A second circuit stops the action of the first current source after the predetermined time period has passed and drives the second current source to supply the ordinary current as the driving current.
    Type: Grant
    Filed: October 18, 1994
    Date of Patent: June 24, 1997
    Assignee: Texas Instruments Incorporated
    Inventor: Takahiro Miyazaki