Patents by Inventor James Robert Dean

James Robert Dean 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).

  • AC-coupled equivalent series resistance
    Patent number: 7719241
    Abstract: AC-coupled equivalent series resistance (ESR) is introduced into a control circuit to provide additional stability in the feedback control loop. A sub-circuit emulates the effect of a higher value ESR in the output capacitor. The additional ESR in the feedback control loop inserts a zero into the transfer function that describes the circuit response at a desired frequency. The added zero compensates for the effects of unwanted or unavoidable poles in the transfer function, allowing for a greater range of input signal frequencies.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: May 18, 2010
    Assignee: Analog Devices, Inc.
    Inventor: James Robert Dean