Patents by Inventor Michael C. Hallman

Michael C. Hallman 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).

  • Patent number: 11799394
    Abstract: One or more embodiments are provided for an inverter. The inverter includes a phase switch configured to supply AC power via an output terminal. The phase switch includes a high-side leg and a low-side leg. The high-side leg includes a high-side solid-state switch configured to selectively conduct current between a high-side conductor of a DC bus and the output terminal, and the low-side leg includes a low-side solid-state switch configured to selectively conduct current between the output terminal and a low-side conductor of the DC bus. The high-side solid-state switch has a first conducting-state resistance value, and the low-side solid-state switch has a second conducting-state resistance value different than the first conducting-state resistance value. A shunt resistor may be connected in series with a corresponding one of the high-side solid-state switch or the low-side solid-state switch, balancing the resistances of the high-side leg and the low-side leg.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: October 24, 2023
    Assignee: Steering Solutions IP Holding Corporation
    Inventors: Michael C. Hallman, Wayne A. Burns, Jeffrey M. Otto
  • Publication number: 20220255460
    Abstract: One or more embodiments are provided for an inverter. The inverter includes a phase switch configured to supply AC power via an output terminal. The phase switch includes a high-side leg and a low-side leg. The high-side leg includes a high-side solid-state switch configured to selectively conduct current between a high-side conductor of a DC bus and the output terminal, and the low-side leg includes a low-side solid-state switch configured to selectively conduct current between the output terminal and a low-side conductor of the DC bus. The high-side solid-state switch has a first conducting-state resistance value, and the low-side solid-state switch has a second conducting-state resistance value different than the first conducting-state resistance value. A shunt resistor may be connected in series with a corresponding one of the high-side solid-state switch or the low-side solid-state switch, balancing the resistances of the high-side leg and the low-side leg.
    Type: Application
    Filed: January 26, 2022
    Publication date: August 11, 2022
    Inventors: Michael C. Hallman, Wayne A. Burns, Jeffrey M. Otto
  • Publication number: 20220165471
    Abstract: An inductor comprises a base having a top surface, a bottom surface, and at least one side surface. The top surface is spaced from the bottom surface. The at least one side surface connects the top surface to the bottom surface. A core is located on the top surface and coupled to the base. At least one coil extends helically about the core. The at least one coil has at least one end extending outwardly from said core. At least one lead is coupled to the at least one coil and extending outwardly from the base in a coplanar relationship with the bottom surface. A circuit card assembly including the inductor and a method of manufacturing the circuit card assembly are also disclosed herein.
    Type: Application
    Filed: November 24, 2020
    Publication date: May 26, 2022
    Inventors: Michael C. Hallman, Wayne B. Thomas, Shawn M. Barber, Matthew W. Mielke, Donald E. Lemke, Kenneth G. Johnston