Patents by Inventor Ronal KOO

Ronal KOO 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).

  • SINGLE SUPPLY DIRECT DRIVE AMPLIFIER
    Publication number: 20080273120
    Abstract: A driver amplifier operative from a single DC voltage supply, coupled directly to the output load without the need for DC coupling capacitors used for preventing DC reaching the output load. An onboard power supply generates a negative voltage rail that powers the output amplifiers, allowing driver amplifier operation from both positive and negative rails. Since the amplifiers can be biased at ground potential (0 volts), no significant DC voltage exists across the load and the need for DC coupling capacitors is eliminated.
    Type: Application
    Filed: May 6, 2008
    Publication date: November 6, 2008
    Inventors: Tony DOY, Ronal KOO