Patents by Inventor Sree Rajesh Saha

Sree Rajesh Saha 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).

  • On die voltage regulation with distributed switches
    Patent number: 10218273
    Abstract: A distributed voltage regulator has switches that function as resistors and are distributed in rows in a grid pattern across a regulated voltage domain. The switches receive an unregulated voltage and supply the regulated voltage. Switch control lines selectively enable the switches to achieve the desired voltage regulation. Droop detect circuits are also distributed through regulated voltage domain. The droop detect circuits detect when the regulated voltage is below a threshold and supply droop detect signals indicative thereof. A plurality of select circuits receive a first group of control lines to configure the switches for charge injection in response to a droop condition and a second group of control lines to configure the switches for other voltage regulation. The select circuits select one of the first and second group of control lines as switch control lines to configure the switches based on the droop detect signals.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: February 26, 2019
    Assignees: Advanced Micro Devices, Inc., ATI Technologies ULC
    Inventors: Erhan Ergin, Dipanjan Sengupta, Elsie Lo, Stephen V. Kosonocky, Sree Rajesh Saha, Divya Guruja
  • ON DIE VOLTAGE REGULATION WITH DISTRIBUTED SWITCHES
    Publication number: 20180374853
    Abstract: A distributed voltage regulator has switches that function as resistors and are distributed in rows in a grid pattern across a regulated voltage domain. The switches receive an unregulated voltage and supply the regulated voltage. Switch control lines selectively enable the switches to achieve the desired voltage regulation. Droop detect circuits are also distributed through regulated voltage domain. The droop detect circuits detect when the regulated voltage is below a threshold and supply droop detect signals indicative thereof. A plurality of select circuits receive a first group of control lines to configure the switches for charge injection in response to a droop condition and a second group of control lines to configure the switches for other voltage regulation. The select circuits select one of the first and second group of control lines as switch control lines to configure the switches based on the droop detect signals.
    Type: Application
    Filed: June 26, 2017
    Publication date: December 27, 2018
    Inventors: Erhan Ergin, Dipanjan Sengupta, Elsie Lo, Stephen V. Kosonocky, Sree Rajesh Saha, Divya Guruja