Patents by Inventor Bruce Wayne Shutts

Bruce Wayne Shutts 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).

  • Switched-mode power supply control circuit
    Patent number: 5959851
    Abstract: A controller for a switch mode power supply includes an undervoltage protection circuit responsive to an input supply voltage indicative signal. The input supply voltage indicative signal is also coupled to a foldback point correction circuit. The correction circuit causes a decrease in a maximum duty cycle of a control signal when the input supply voltage increases and is still smaller than a predetermined magnitude. A zener diode limits the input supply voltage indicative signal in a manner to prevent a further decrease in the duty cycle when the input supply voltage exceeds the predetermined magnitude.
    Type: Grant
    Filed: September 13, 1996
    Date of Patent: September 28, 1999
    Assignee: Thomson Consumer Electronics, Inc.
    Inventor: Bruce Wayne Shutts
  • Switched-mode power supply control circuit
    Patent number: 5825638
    Abstract: A controller for a switch mode power supply includes an undervoltage protection circuit responsive to an input supply voltage indicative signal. The input supply voltage indicative signal is also coupled to a foldback point correction circuit. The correction circuit causes a decrease in a maximum duty cycle of a control signal when the input supply voltage increases and is still smaller than a predetermined magnitude. A zener diode limits the input supply voltage indicative signal in a manner to prevent a further decrease in the duty cycle when the input supply voltage exceeds the predetermined magnitude.
    Type: Grant
    Filed: September 13, 1996
    Date of Patent: October 20, 1998
    Assignee: Thomson Consumer Electronics, Inc.
    Inventor: Bruce Wayne Shutts
  • Switched-mode power supply control circuit
    Patent number: 5721674
    Abstract: A controller for a switch mode power supply includes an undervoltage protection circuit responsive to an input supply voltage indicative signal. The input supply voltage indicative signal is also coupled to a foldback point correction circuit. The correction circuit causes a decrease in a maximum duty cycle of a control signal when the input supply voltage increases and is still smaller than a predetermined magnitude. A zener diode limits the input supply voltage indicative signal in a manner to prevent a further decrease in the duty cycle when the input supply voltage exceeds the predetermined magnitude.
    Type: Grant
    Filed: September 13, 1996
    Date of Patent: February 24, 1998
    Assignee: Thomson Consumer Electronics, Inc.
    Inventor: Bruce Wayne Shutts