Patents Assigned to Ventex Group LLC
  • Gas discharge lamp power supply with feed forward compensation for input voltage variations
    Patent number: 6255783
    Abstract: A power supply for a gas discharge lamp that provides a constant current to the lamp even when there are variations in a DC input voltage includes an inverter having a drive transformer that is controlled without negative feedback to operate close to its resonance condition, which permits a substantially constant load current even for large variations of the DC input voltage to the power supply.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: July 3, 2001
    Assignee: Ventex Group LLC
    Inventor: Francis J. Parker