Patents by Inventor Thomas Plum

Thomas Plum 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: 12057779
    Abstract: The invention relates to a circuit apparatus (10) for controlling the current flow of the secondary side (20) of a direct voltage converter, comprising: a controllable switch element (1) having a first connection (1a), a second connection (1c) and a control connection (1b); a snubber circuit, which is electrically coupled to the source connection (1a) and the second connection (1c); and a control circuit (5), which is designed to control a deactivation time of the controllable switch element (1) via the control connection (1b); wherein the control circuit (5) is electrically coupled to the snubber circuit and is designed to control the deactivation time according to an electrical parameter of the coupling.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: August 6, 2024
    Assignee: Robert Bosch GmbH
    Inventors: Thomas Plum, Jan Allgeier
  • Publication number: 20240029938
    Abstract: The invention proposes a magnetic component (1) for an electrical and/or electronic module, wherein the magnetic component (1) comprises a magnetic core (10) and an electrical conductor (6) surrounding the magnetic core (10), wherein a bridge element (20) is arranged on the magnetic core (10), wherein at least a part of the bridge element (20) is surrounded by an electrical measuring conductor (30), wherein the electrical measuring conductor (30) is designed to measure a zero current in the electrical conductor (6) surrounding the magnetic core (10).
    Type: Application
    Filed: July 19, 2021
    Publication date: January 25, 2024
    Inventors: Dennis Bura, Thomas Plum
  • Publication number: 20230322105
    Abstract: The invention relates to a charging device (100), comprising: an input-side first terminal (110_1, 110_2) for connecting to an electrical energy source (200); an output-side second terminal (190_1, 190_2) for connecting to a battery (300) to be charged; and a transformer (150), the primary winding (150_1) of which is electrically connected to the first terminal (110_1, 110_2) by means of a primary circuit (400) and the secondary winding (150_2) of which is electrically connected to the second terminal (190_1, 190_2) by means of a secondary circuit (500).
    Type: Application
    Filed: September 15, 2020
    Publication date: October 12, 2023
    Inventor: Thomas Plum
  • Patent number: 11764696
    Abstract: The invention relates to a direct-current voltage converter (10) for electrical power transmission from a secondary side to a primary side of the direct-current voltage converter (10), which has on the primary side an actively clamped flyback converter circuit having a controlled first switch (1) and a controlled second switch (2), and the primary side is inductively coupled to the secondary side. The current of a secondary coil (6) on the secondary side, for inductive coupling to the primary side, is switched by a single controlled third switch (3) on the secondary side, and the direct-current voltage converter has a regulator (12) which, in parts of a regulating cycle, conductively connects the third switch (3) to the first switch (1).
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: September 19, 2023
    Assignee: Robert Bosch GmbH
    Inventor: Thomas Plum
  • Publication number: 20220360186
    Abstract: The invention relates to a circuit apparatus (10) for controlling the current flow of the secondary side (20) of a direct voltage converter, comprising: a controllable switch element (1) having a first connection (1a), a second connection (1c) and a control connection (1b); a snubber circuit, which is electrically coupled to the source connection (1a) and the second connection (1c); and a control circuit (5), which is designed to control a deactivation time of the controllable switch element (1) via the control connection (1b); wherein the control circuit (5) is electrically coupled to the snubber circuit and is designed to control the deactivation time according to an electrical parameter of the coupling.
    Type: Application
    Filed: June 15, 2020
    Publication date: November 10, 2022
    Inventors: Thomas Plum, Jan Allgeier
  • Publication number: 20220052610
    Abstract: The invention relates to a direct-current voltage converter (10) for electrical power transmission from a secondary side to a primary side of the direct-current voltage converter (10), which has on the primary side an actively clamped flyback converter circuit having a controlled first switch (1) and a controlled second switch (2), and the primary side is inductively coupled to the secondary side. The current of a secondary coil (6) on the secondary side, for inductive coupling to the primary side, is switched by a single controlled third switch (3) on the secondary side, and the direct-current voltage converter has a regulator (12) which, in parts of a regulating cycle, conductively connects the third switch (3) to the first switch (1).
    Type: Application
    Filed: December 6, 2019
    Publication date: February 17, 2022
    Inventor: Thomas Plum
  • Publication number: 20200265980
    Abstract: The invention relates to the production of a magnetic core having air gaps. For this purpose, according to the invention, a main body having a portion made of magnetic ferrite and a portion made of non-magnetic material is formed. Subsequently, gaps are introduced into the portion having the magnetic ferrite, while the portion having the non-magnetic material remains largely unchanged. In this way, the segments having the ferrite, which are formed by the introduction of the gaps, can be fixed relative to each other by the non-magnetic region.
    Type: Application
    Filed: August 9, 2018
    Publication date: August 20, 2020
    Inventors: Jivan Kapoor, Thomas Plum
  • Publication number: 20200251264
    Abstract: The invention relates to a slotted magnetic core having multiple gaps, as well as a production method for a magnetic core of this type. In a main body made as of a magnetic ferrite, multiple gaps are introduced into the main body, which, however, only partially penetrate the main body. The main body with the gaps is subsequently secured by a casing and then a section of the main body is removed, such that the magnetic ferrite breaks apart into multiple individual segments, which are only held together by the casing.
    Type: Application
    Filed: August 9, 2018
    Publication date: August 6, 2020
    Inventors: Jivan Kapoor, Thomas Plum
  • Patent number: 10065513
    Abstract: The invention relates to inductive energy transmission from a primary coil (12) to a secondary coil (22) having an additional operating state. By means of this two-sided regulation, a primary-side and secondary-side control of the power electronics is performed in accordance with a predetermined operational strategy. Thus, even in the case of unfavorable coupling factors, for example, the efficiency of the inductive energy transmission can be increased, the magnetic field in the air gap between the primary coil (12) and the secondary coil (22) can be minimized, and the inductive energy transmission can be optimized. This optimized operational strategy is enabled by means of a newly introduced idle state, which permits periodic short-circuiting of the secondary side by means of switches on the secondary side (S5, S6) of the inductive energy transmission system. The invention is preferably used in the charging of the battery of an electric vehicle (4), but other applications are also possible.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: September 4, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Thomas Plum, Tobias Diekhans
  • Publication number: 20160221451
    Abstract: The invention relates to inductive energy transmission from a primary coil (12) to a secondary coil (22) having an additional operating state. By means of this two-sided regulation, a primary-side and secondary-side control of the power electronics is performed in accordance with a predetermined operational strategy. Thus, even in the case of unfavorable coupling factors, for example, the efficiency of the inductive energy transmission can be increased, the magnetic field in the air gap between the primary coil (12) and the secondary coil (22) can be minimized, and the inductive energy transmission can be optimized. This optimized operational strategy is enabled by means of a newly introduced idle state, which permits periodic short-circuiting of the secondary side by means of switches on the secondary side (S5, S6) of the inductive energy transmission system. The invention is preferably used in the charging of the battery of an electric vehicle (4), but other applications are also possible.
    Type: Application
    Filed: July 3, 2014
    Publication date: August 4, 2016
    Applicant: Robert Bosch GmbH
    Inventors: Thomas PLUM, Tobias DIEKHANS
  • Publication number: 20060130021
    Abstract: Automated (e.g., compiler implemented) techniques provide safe secure software development. One exemplary illustrative implementation addresses undefined behavior in the C and C++ programming languages.
    Type: Application
    Filed: November 2, 2005
    Publication date: June 15, 2006
    Inventors: Thomas Plum, David Keaton
  • Publication number: 20050246693
    Abstract: Automated (e.g., compiler implemented) techniques provide safe secure software development. One exemplary illustrative implementation addresses undefined behavior in the C and C++ programming languages.
    Type: Application
    Filed: May 6, 2005
    Publication date: November 3, 2005
    Inventor: Thomas Plum
  • Publication number: 20050097535
    Abstract: Automated (e.g., compiler implemented) techniques provide safe secure software development. One exemplary illustrative implementation addresses undefined behavior in the C and C++ programming languages.
    Type: Application
    Filed: October 15, 2004
    Publication date: May 5, 2005
    Inventor: Thomas Plum
  • Publication number: 20030205094
    Abstract: This invention is the automatic data collection of the airside velocity measurement and the sensor location measurement as recorded during the airside volume measurement or air balance process. The data is automatically output to a computing or data-logging device for immediate or later analysis, eliminating the human error associated with measurement and data recording.
    Type: Application
    Filed: May 6, 2002
    Publication date: November 6, 2003
    Inventor: Brandon Thomas Plum
  • Patent number: 5579479
    Abstract: A method and apparatus provide a level of authentication or a computer software program sign-on that is intermediate trust-based licensing and hardware based protection. Entry of a registration name is required at the time of initial use of the program, and at each invocation of the program the computer determines if the invocation is within the freshness interval (based upon the number of sign-ons, e.g. 30, or the passage of time, e.g. 30 days). If the sign-on is not within the freshness level, the computer and display screen provide a re-authentication inquiry, which may require a response before a standard sign on is allowed. If the re-authentication response is at odds with the initial registration name, standard sign-on may be precluded, and the screen displays a phone/fax number or electronic address to contact for appropriate registration information.
    Type: Grant
    Filed: October 3, 1994
    Date of Patent: November 26, 1996
    Assignee: Plum Hall Inc.
    Inventor: Thomas Plum