Patents by Inventor Johannes H. Van Bijnen

Johannes H. Van Bijnen 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).

  • Discharge lamp control circuit with feedback loop to lower harmonic distortion
    Patent number: 5757143
    Abstract: A circuit arrangement for operating a discharge lamp with a high frequency current comprising input terminals for connection to a source of low frequency supply voltage, a rectifier bridge coupled to the input terminals for rectifying the low frequency supply voltage, and an inverter shunting a first capacitor for generating the high frequency current. The circuit arrangement incorporates two power feedback loops to feed power back to an output terminal of the rectifier bridge. As a result the circuit arrangement has a relatively simple configuration, causes only a very limited amount of harmonic distortion and can be realized with relatively cheap and simple components.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: May 26, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Adan F. J. Hernandez Martucci, Johannes H. Van Bijnen, Patrick J. Zijlstra