Patents by Inventor Shashi Kanth Belde

Shashi Kanth Belde 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).

  • Open load diagnostics for loads that are PWM controlled
    Patent number: 11489479
    Abstract: Methods and apparatuses for detecting an open load condition for a load. The load is coupled to a power source at a high side and to a ground at a low side through at least one switch, the load has a first end and a second end, a first voltage at the first end is kept constant. A switch is controlled by a PWM signal. After the switch is turned off by the PWM signal, the voltage associated with the second end of the load is measured. In one embodiment, a change of the second voltage during a predefined delay is compared with a predefined voltage threshold. In another embodiment, the time it takes for the change of the second voltage to reach a predefined voltage threshold is compared with a predefined time threshold.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: November 1, 2022
    Assignee: Cummins Inc.
    Inventors: Subramanya Bhat, Santosh Shankar Koli, Shashi Kanth Belde, Abu Musa
  • OPEN LOAD DIAGNOSTICS FOR LOADS THAT ARE PWM CONTROLLED
    Publication number: 20210091705
    Abstract: Methods and apparatuses for detecting an open load condition for a load. The load is coupled to a power source at a high side and to a ground at a low side through at least one switch, the load has a first end and a second end, a first voltage at the first end is kept constant. A switch is controlled by a PWM signal. After the switch is turned off by the PWM signal, the voltage associated with the second end of the load is measured. In one embodiment, a change of the second voltage during a predefined delay is compared with a predefined voltage threshold. In another embodiment, the time it takes for the change of the second voltage to reach a predefined voltage threshold is compared with a predefined time threshold.
    Type: Application
    Filed: August 3, 2017
    Publication date: March 25, 2021
    Inventors: Subramanya Bhat, Santosh Shankar Koli, Shashi Kanth Belde, Abu Musa