Patents by Inventor Jesper Hougaard Johansen

Jesper Hougaard Johansen 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).

  • Fault condition detection system and method
    Patent number: 11817738
    Abstract: According to an example, an uninterruptible power supply is provided comprising a first input, a backup input, an output to provide output power, an inverter coupled to the first input, the backup input, and the output, a first sensor to detect a voltage at an inverter output, a second sensor to detect a voltage at the first input, a switch coupled between the first input and the output, and a controller coupled to the switch and the first and second sensors, and configured to determine a first voltage difference across the bypass switch using at least one of the first sensor or the second sensor, filter the first voltage difference, determine whether a value derived from the first filtered voltage difference exceeds a threshold, and output an indication of a failure of the bypass switch based on the value derived from the first filtered voltage difference exceeding the threshold.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: November 14, 2023
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventors: Kristian Budde, Jesper Hougaard Johansen, Jacob Gregers Hansen
  • FAULT CONDITION DETECTION SYSTEM AND METHOD
    Publication number: 20220109322
    Abstract: According to an example, an uninterruptible power supply is provided comprising a first input, a backup input, an output to provide output power, an inverter coupled to the first input, the backup input, and the output, a first sensor to detect a voltage at an inverter output, a second sensor to detect a voltage at the first input, a switch coupled between the first input and the output, and a controller coupled to the switch and the first and second sensors, and configured to determine a first voltage difference across the bypass switch using at least one of the first sensor or the second sensor, filter the first voltage difference, determine whether a value derived from the first filtered voltage difference exceeds a threshold, and output an indication of a failure of the bypass switch based on the value derived from the first filtered voltage difference exceeding the threshold.
    Type: Application
    Filed: September 20, 2021
    Publication date: April 7, 2022
    Inventors: Kristian Budde, Jesper Hougaard Johansen, Jacob Gregers Hansen
  • Fault condition detection system and method
    Patent number: 11128164
    Abstract: According to an example, an uninterruptible power supply is provided comprising a first input, a backup input, an output to provide output power, an inverter coupled to the first input, the backup input, and the output, a first sensor to detect a voltage at an inverter output, a second sensor to detect a voltage at the first input, a switch coupled between the first input and the output, and a controller coupled to the switch and the first and second sensors, and configured to determine a first voltage difference across the bypass switch using at least one of the first sensor or the second sensor, filter the first voltage difference, determine whether a value derived from the first filtered voltage difference exceeds a threshold, and output an indication of a failure of the bypass switch based on the value derived from the first filtered voltage difference exceeding the threshold.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: September 21, 2021
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventors: Kristian Budde, Jesper Hougaard Johansen, Jacob Gregers Hansen
  • FAULT CONDITION DETECTION SYSTEM AND METHOD
    Publication number: 20210288518
    Abstract: According to an example, an uninterruptible power supply is provided comprising a first input, a backup input, an output to provide output power, an inverter coupled to the first input, the backup input, and the output, a first sensor to detect a voltage at an inverter output, a second sensor to detect a voltage at the first input, a switch coupled between the first input and the output, and a controller coupled to the switch and the first and second sensors, and configured to determine a first voltage difference across the bypass switch using at least one of the first sensor or the second sensor, filter the first voltage difference, determine whether a value derived from the first filtered voltage difference exceeds a threshold, and output an indication of a failure of the bypass switch based on the value derived from the first filtered voltage difference exceeding the threshold.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 16, 2021
    Inventors: Kristian Budde, Jesper Hougaard Johansen, Jacob Gregers Hansen