Patents Assigned to Innovative Controls, Incorporated
  • Ballast for high pressure sodium lamps having constant line and lamp wattage
    Patent number: 4999547
    Abstract: A high efficiency, electronic ballast is taught for high pressure sodium (HPS) lamps. The ballast is powered by AC line current which is rectified so that 160 volts of direct current lights the lamp. The ballast maintains constant wattage to the lamp and constant line wattage. A striker circuit develops a high voltage, short duration pulse to strike the lamp.
    Type: Grant
    Filed: September 25, 1986
    Date of Patent: March 12, 1991
    Assignee: Innovative Controls, Incorporated
    Inventor: Sidney A. Ottenstein
  • High intensity discharge lamp self-adjusting ballast system with current limiters and a current feedback loop
    Patent number: 4686428
    Abstract: The invention comprises a self-adjusting ballast system for a high intensity discharge lamp. The ballast has a current limiter which modifies the lamp's present duty cycle to prevent damage if bulb rectification or another overcurrent condition occurs. It also has a current integration feedback loop for controlling lamp current during start-up.
    Type: Grant
    Filed: June 18, 1986
    Date of Patent: August 11, 1987
    Assignee: Innovative Controls, Incorporated
    Inventors: Donald S. Kuhnel, Sidney A. Ottenstein
  • High intensity discharge lamp self-adjusting ballast system sensitive to the radiant energy or heat of the lamp
    Patent number: 4682084
    Abstract: A self-adjusting ballast system for a high intensity discharge lamp. A lightweight, inexpensive and efficient ballast controls the strike and warmup stages of the high intensity discharge lamp, in particular high wattage lamps, through direct sensing of the radiant energy or heat output of the lamp itself. A current controller corrects for current imbalance in the alternating current lamp circuit due to bulb rectification or magnetic imbalance in the inverter transformer system.
    Type: Grant
    Filed: August 28, 1985
    Date of Patent: July 21, 1987
    Assignee: Innovative Controls, Incorporated
    Inventors: Donald S. Kuhnel, Sidney A. Ottenstein