Patents Examined by Benjamin D. Drisoll
  • Patent number: 5317213
    Abstract: A level converting circuit has a function of converting an input signal of a first logic level into an output signal of a second logic level. The level converting circuit includes a first transistor responsive to an input signal IN for charging an output node to the ground potential, a second transistor responsive to the input signal IN for lowering the potential of the output node to the negative potential VEE, a third transistor responsive to the potential of the output node for controlling operations of the second transistor, and fourth and fifth transistors responsive to a delay signal with delay to an output of the level converting circuit for controlling the amount of current flowing through the output node. An inverted, amplified signal of the output node is applied to the gate of the fourth transistor, and a non-inverted, amplified signal of the output node is applied to the gate of the fifth transistor.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: May 31, 1994
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hirotoshi Sato, Atsushi Ohba, Akira Hosogane