Patents by Inventor Pankaj P. Tikle

Pankaj P. Tikle 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).

  • Low voltage LED lighting fixture
    Patent number: 11265989
    Abstract: A low voltage lighting system including a fixture (200) having an array of LEDs (204) and an LED driver circuit (202). The LED driver circuit (202) includes a Switch-mode Power Supply (SMPS) unit (206), a current sensing unit (210), a control unit (208) and a dimming input level shifting and signal conditioning unit (212). The SMPS unit (206) produces an adequate DC power (+VLED, ?VLED) for driving the LEDs (204). The control unit (208) receives a sensed current signal from the current sensing unit (210) and controls the SMPS unit (206) to maintain the output current within a pre-determined range. The control unit (208) receives a dimming signal from the dimming unit (212) or an emergency signal from a supply unit (104) to alter the output power of the SMPS unit (206) from normal mode to dimming mode or emergency mode respectively.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: March 1, 2022
    Assignee: Appleton Grp LLC
    Inventors: Timothy E. Graff, Pankaj P. Tikle, Ajay Tripathi
  • Low Voltage LED Lighting Fixture
    Publication number: 20200352000
    Abstract: A low voltage lighting system including a fixture (200) having an array of LEDs (204) and an LED driver circuit (202). The LED driver circuit (202) includes a Switch-mode Power Supply (SMPS) unit (206), a current sensing unit (210), a control unit (208) and a dimming input level shifting and signal conditioning unit (212). The SMPS unit (206) produces an adequate DC power (+VLED, ?VLED) for driving the LEDs (204). The control unit (208) receives a sensed current signal from the current sensing unit (210) and controls the SMPS unit (206) to maintain the output current within a pre-determined range. The control unit (208) receives a dimming signal from the dimming unit (212) or an emergency signal from a supply unit (104) to alter the output power of the SMPS unit (206) from normal mode to dimming mode or emergency mode respectively.
    Type: Application
    Filed: April 28, 2020
    Publication date: November 5, 2020
    Inventors: Timothy E. Graff, Pankaj P. Tikle, Ajay Tripathi