Patents by Inventor Gabriel Andreis Nicolescu

Gabriel Andreis Nicolescu 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).

  • Regulated voltage reducing high-voltage isolated DC/DC converter system
    Patent number: 6504735
    Abstract: A DC-DC converter for converting DC power received from a high-voltage DC power supply to a well-regulated output voltage that is significantly lower than the received voltage. The converter includes a regulated voltage-reduction stage which receives high-voltage DC electrical power and supplies DC electrical power at a voltage which is lower than that received. The converter also includes a separately regulated electrically isolated stage, energized by electrical power received from the voltage-reduction stage, that supplies DC electrical power to a load at the significantly lower output voltage. A feedback circuit couples an output signal from the output of the isolation-stage for regulating operation of the voltage-reduction stage and of the isolation stage.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: January 7, 2003
    Assignee: 02 Micro International Ltd.
    Inventors: Sorin Laurentiu Negru, Gabriel Andreis Nicolescu
  • High-voltage isolated DC-DC converter
    Publication number: 20020126513
    Abstract: A DC-DC converter for converting DC power received from a high-voltage DC power supply to a well-regulated output voltage that is significantly lower than the received voltage. The converter includes a regulated voltage-reduction stage which receives high-voltage DC electrical power and supplies DC electrical power at a voltage which is lower than that received. The converter also includes a separately regulated electrically isolated stage, energized by electrical power received from the voltage-reduction stage, that supplies DC electrical power to a load at the significantly lower output voltage. A feedback circuit couples an output signal from the output of the isolation-stage for regulating operation of the voltage-reduction stage and of the isolation stage.
    Type: Application
    Filed: October 5, 2001
    Publication date: September 12, 2002
    Inventors: Sorin Laurentiu Negru, Gabriel Andreis Nicolescu