Patents by Inventor Manisha P. Pandyn

Manisha P. Pandyn 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).

  • Single Inductor Serial-Parallel LED Driver
    Publication number: 20110018451
    Abstract: An LED driver circuit is disclosed that can drive a plurality of LED strings that are arranged in parallel, each LED string having a plurality of component LEDs that are series-connected. The LED strings can be the same type of LEDs in each string, or have different types of LEDs from one string to another. The LED driver includes a voltage control loop that dynamically regulates the output voltage across the parallel arrangement of LED strings. The output voltage is dynamically adjusted to accommodate the LED string with the largest operational voltage drop. This enables LED displays to constructed using different types of LEDs strings, but still supply the LED strings in a power efficient manner. Further, each LED string also includes its own individual current regulation loop so that the current, and therefore brightness, of each LED string can be individually adjusted.
    Type: Application
    Filed: May 28, 2010
    Publication date: January 27, 2011
    Applicant: Broadcom Corporation
    Inventors: Sridhar V. Kotikalapoodi, James Zeng, Tivadar Szabo, Manisha P. Pandyn, Farzan Roohparvar
  • Single inductor serial-parallel LED driver
    Patent number: 7733034
    Abstract: An LED driver circuit is disclosed that can drive a plurality of LED strings that are arranged in parallel, each LED string having a plurality of component LEDs that are series-connected. The LED strings can be the same type of LEDs in each string, or have different types of LEDs from one string to another. The LED driver includes a voltage control loop that dynamically regulates the output voltage across the parallel arrangement of LED strings. The output voltage is dynamically adjusted to accommodate the LED string with the largest operational voltage drop. This enables LED displays to constructed using different types of LEDs strings, but still supply the LED strings in a power efficient manner. Further, each LED string also includes its own individual current regulation loop so that the current, and therefore brightness, of each LED string can be individually adjusted.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: June 8, 2010
    Assignee: Broadcom Corporation
    Inventors: Sridhar V. Kotikalapoodi, James Zeng, Tivadar Szabo, Manisha P. Pandyn, Farzan Roohparvar
  • Single inductor serial-parallel LED driver
    Publication number: 20080054815
    Abstract: An LED driver circuit is disclosed that can drive a plurality of LED strings that are arranged in parallel, each LED string having a plurality of component LEDs that are series-connected. The LED strings can be the same type of LEDs in each string, or have different types of LEDs from one string to another. The LED driver includes a voltage control loop that dynamically regulates the output voltage across the parallel arrangement of LED strings. The output voltage is dynamically adjusted to accommodate the LED string with the largest operational voltage drop. This enables LED displays to constructed using different types of LEDs strings, but still supply the LED strings in a power efficient manner. Further, each LED string also includes its own individual current regulation loop so that the current, and therefore brightness, of each LED string can be individually adjusted.
    Type: Application
    Filed: April 24, 2007
    Publication date: March 6, 2008
    Applicant: Broadcom Corporation
    Inventors: Sridhar V. Kotikalapoodi, James Zeng, Tivadar Szabo, Manisha P. Pandyn, Farzan Roohparvar