Patents by Inventor Eddie Chiu Keung Suen

Eddie Chiu Keung Suen 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).

  • Switch mode power supply using transformer flux sensing for duty cycle control
    Patent number: 6396718
    Abstract: A switch mode power supply (200, FIG. 2; 600, FIG. 6) includes a transformer (208), a transistor (212) that drives the primary winding of the transformer, and a controller (210, 610). The controller senses whether or not the transformer is reset and applies a switching control signal to a control terminal (220) of the transistor, accordingly. The signal is produced at a switching frequency, and the signal has a duty cycle that is limited based on whether or not the transformer is reset.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: May 28, 2002
    Assignee: Semiconductor Components Industries LLC
    Inventors: Hector Chi Man Ng, Eddie Chiu Keung Suen, Chew Ming Hian