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IPG Photonics Corporation (IPGP) Message Board

  • ltgmaster ltgmaster Jul 16, 2013 7:26 AM Flag

    Patent Granted = license fees coming

    US Patent granted to IPG Photonics Corporation (Massachusetts) on July 09 titled as "Multi-stage erbium-doped fiber amplifier with a single programmable logic device control circuit and method of controlling thereof"
    2013-07-12
    United States Patent and Trademark Office has granted patent no. 8,482,850 on July 09, 2013, to IPG Photonics Corporation (Massachusetts), titled as "Multi-stage erbium-doped fiber amplifier with a single programmable logic device control circuit and method of controlling thereof"
    Inventors: Simmons; Phil (Sterling, MA)
    Assignee: IPG Photonics Corporation (Oxford, MA)
    According to the abstract released by the U.S. Patent & Trademark Office: "A control circuit for a fiber amplifier having a first stage pump and at least one second stage pump and method of controlling thereof is disclosed. The control circuit includes a control gate controlling a current through the first stage pump. A sensor for detecting a voltage across the first stage pump and providing a measured output of the voltage is provided. The control circuit further includes a control loop configured for selectively controlling the current through the control gate in accordance with the measured output and a set reference point is also provided."

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