Patents by Inventor Jeffery L. Morud

Jeffery L. Morud has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Efficient switch drive circuit
    Patent number: 4656414
    Abstract: A circuit which drives a control node of a switching device, such as a base node of an output transistor in a switching power supply, is disclosed. A pulsewidth modulator provides an activating peak current pulse to the control node, but the peak current pulse is later removed to reduce power dissipation. Inductively coupled power sources provide steady state drive current and a negative potential which is applied to the control node the instant the switching device inactivates.
    Type: Grant
    Filed: October 18, 1985
    Date of Patent: April 7, 1987
    Assignee: Motorola, Inc.
    Inventor: Jeffery L. Morud