Patents by Inventor Anders Lind
Anders Lind 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).
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Publication number: 20240088843Abstract: A class-D amplifier with multiple “nested” levels of feedback. The class-D amplifier surrounds an inner feedback loop, which takes the output of a switching amplifier and corrects for errors generated across the switching amplifier, with additional feedback loops that also take the output of the switching amplifier.Type: ApplicationFiled: August 23, 2023Publication date: March 14, 2024Inventor: Anders Lind
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Publication number: 20240039411Abstract: A method of setting a synchronous rectifier on-time value includes determining that a time interval has occurred, receiving a number of triangular current mode (TCM) pulses measured during the time interval, and determining a pulse comparison value equal to a number of switching period pulses during the time interval minus the number of TCM pulses during the time interval. The method also includes increasing the synchronous rectifier on-time if the pulse comparison value is greater than or equal to a threshold and decreasing the synchronous rectifier on-time if the pulse comparison value is less than the threshold.Type: ApplicationFiled: August 11, 2023Publication date: February 1, 2024Applicant: Nexgen Power Systems, Inc.Inventor: Anders Lind
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Patent number: 11881766Abstract: An apparatus for controlling a power converter includes a controller configured to detect an error in an output voltage of the power converter at a zero-crossing of a cyclically varying input signal and a compensator coupled to the controller and the power converter and configured to regulate the output voltage of the power converter in response to the error.Type: GrantFiled: November 11, 2021Date of Patent: January 23, 2024Assignee: NEXGEN POWER SYSTEMS, INC.Inventor: Anders Lind
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Publication number: 20230412134Abstract: An amplifier having one or more channels where each channel includes a two half bridges (a master and slave sub-channel). The sub-channels can be connected either in parallel or in a full-bridge configuration via internal switches that route signals to a pair of speaker jacks. One switch in the amplifier has a first position that selectively connects the outputs of the master and slave sub-channel to the same input of the speaker load so that the two sub-channels will drive the speaker load in parallel and a second position where the output of the slave sub-channel is connected to another input of the speaker load so that the master sub-channel and the slave sub-channel will drive the speaker load in a Full-bridge configuration.Type: ApplicationFiled: March 16, 2023Publication date: December 21, 2023Inventors: Anders Lind, Matthew Skogmo
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Patent number: 11845978Abstract: A method for detecting and characterising a microorganism in a clinical sample includes introducing the clinical sample to a first culture vessel and simultaneously transporting and incubating the clinical sample in a thermally insulated compartment of a sealable container. A test aliquot is removed from the sample and the remainder of the sample is further cultured. DNA is removed from the test aliquot and nucleic acid tests are performed on it to identify the microorganism and to detect the presence or absence of one or more genetic antimicrobial resistance markers in the microorganism. One or more nucleic acid probes or primers are used to perform the nucleic acid tests. It is detected whether or not the probes or primers have hybridised to DNA or the primers have been extended. If a microorganism is identified, then an antimicrobial susceptibility test is performed on the cultured clinical sample.Type: GrantFiled: April 21, 2017Date of Patent: December 19, 2023Assignee: Q-LINEA ABInventors: Jonas Jarvius, Anders Lind, Henrik Soderstrom, Jan Grawe
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Patent number: 11824430Abstract: A method of measuring an AC input voltage at an input of a power converter includes measuring a DC bus voltage corresponding to the power converter. During a positive half-cycle of the AC input voltage, the method includes measuring a first voltage at the input of the power converter. During a negative half-cycle of the AC input voltage, the method includes turning on a high-side switch, measuring a second voltage at the input of the power converter, and computing a third voltage equal to the second voltage minus the DC bus voltage. The method further includes providing the AC input voltage as the first voltage during the positive AC half-cycle and the third voltage during the negative AC half-cycle.Type: GrantFiled: November 11, 2021Date of Patent: November 21, 2023Assignee: Nexgen Power Systems, Inc.Inventor: Anders Lind
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Patent number: 11784615Abstract: A class-D amplifier with multiple “nested” levels of feedback. The class-D amplifier surrounds an inner feedback loop, which takes the output of a switching amplifier and corrects for errors generated across the switching amplifier, with additional feedback loops that also take the output of the switching amplifier.Type: GrantFiled: August 18, 2021Date of Patent: October 10, 2023Assignee: QSC, LLCInventor: Anders Lind
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Patent number: 11770075Abstract: A method of setting a synchronous rectifier on-time value includes determining that a time interval has occurred, receiving a number of triangular current mode (TCM) pulses measured during the time interval, and determining a pulse comparison value equal to a number of switching period pulses during the time interval minus the number of TCM pulses during the time interval. The method also includes increasing the synchronous rectifier on-time if the pulse comparison value is greater than or equal to a threshold and decreasing the synchronous rectifier on-time if the pulse comparison value is less than the threshold.Type: GrantFiled: November 11, 2021Date of Patent: September 26, 2023Assignee: Nexgen Power Systems, Inc.Inventor: Anders Lind
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Patent number: 11611322Abstract: An amplifier having one or more channels where each channel includes a two half bridges (a master and slave sub-channel). The sub-channels can be connected either in parallel or in a full-bridge configuration via internal switches that route signals to a pair of speaker jacks. One switch in the amplifier has a first position that selectively connects the outputs of the master and slave sub-channel to the same input of the speaker load so that the two sub-channels will drive the speaker load in parallel and a second position where the output of the slave sub-channel is connected to another input of the speaker load so that the master sub-channel and the slave sub-channel will drive the speaker load in a Full-bridge configuration.Type: GrantFiled: July 12, 2021Date of Patent: March 21, 2023Assignee: QSC, LLCInventors: Anders Lind, Matthew Skogmo
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Publication number: 20220158561Abstract: A power converter includes an input coupled to an inductor, a first switch coupled to a first comparator, and a second switch coupled to a second comparator. The power converter also includes a pulse comparison counter coupled to the first comparator and the second comparator and a synchronous rectifier (SR) calculator coupled to the pulse comparison counter. The synchronous rectifier calculator is operable to modify a conduction time of the first switch during a first AC half-cycle and modify a conduction time of the second switch during a second AC half-cycle.Type: ApplicationFiled: November 11, 2021Publication date: May 19, 2022Applicant: NexGen Power Systems, Inc.Inventor: Anders Lind
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Publication number: 20220158546Abstract: An apparatus for controlling a power converter operable to receive a cyclically varying input signal includes a discrete-time, on-time generator coupled to the power converter and configured to regulate an output voltage of the power converter and a controller configured to compare the output voltage of the power converter against a first predetermined range to: obtain a comparison result at a zero-crossing of the cyclically varying input signal and select one of a plurality of operation levels of the discrete-time, on-time generator in response to the comparison result. The plurality of operation levels includes a linear, discrete-time operation level and a nonlinear, discrete-time operation level.Type: ApplicationFiled: November 11, 2021Publication date: May 19, 2022Applicant: NexGen Power Systems, Inc.Inventor: Anders Lind
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Publication number: 20220158539Abstract: A method of measuring an AC input voltage at an input of a power converter includes measuring a DC bus voltage corresponding to the power converter. During a positive half-cycle of the AC input voltage, the method includes measuring a first voltage at the input of the power converter. During a negative half-cycle of the AC input voltage, the method includes turning on a high-side switch, measuring a second voltage at the input of the power converter, and computing a third voltage equal to the second voltage minus the DC bus voltage. The method further includes providing the AC input voltage as the first voltage during the positive AC half-cycle and the third voltage during the negative AC half-cycle.Type: ApplicationFiled: November 11, 2021Publication date: May 19, 2022Applicant: NexGen Power Systems, Inc.Inventor: Anders Lind
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Publication number: 20220158547Abstract: An apparatus for controlling a power converter includes a controller configured to detect an error in an output voltage of the power converter at a zero-crossing of a cyclically varying input signal and a compensator coupled to the controller and the power converter and configured to regulate the output voltage of the power converter in response to the error.Type: ApplicationFiled: November 11, 2021Publication date: May 19, 2022Applicant: NexGen Power Systems, Inc.Inventor: Anders Lind
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Publication number: 20220158559Abstract: A controller for controlling a switching power converter having an input for receiving a periodic input signal and an output for providing a substantially constant output voltage to a load includes a monitor device configured to compare a switching time interval or a switching frequency with a predetermined threshold value to obtain a comparison result and a parameter recorder configured to record an entry criteria in response to the comparison result, wherein the entry criteria indicates a transition of the switching power converter from a variable switching frequency state to a constant switching frequency state.Type: ApplicationFiled: November 11, 2021Publication date: May 19, 2022Applicant: NexGen Power Systems, Inc.Inventor: Anders Lind
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Publication number: 20220158560Abstract: A method of setting a synchronous rectifier on-time value includes determining that a time interval has occurred, receiving a number of triangular current mode (TCM) pulses measured during the time interval, and determining a pulse comparison value equal to a number of switching period pulses during the time interval minus the number of TCM pulses during the time interval. The method also includes increasing the synchronous rectifier on-time if the pulse comparison value is greater than or equal to a threshold and decreasing the synchronous rectifier on-time if the pulse comparison value is less than the threshold.Type: ApplicationFiled: November 11, 2021Publication date: May 19, 2022Applicant: NexGen Power Systems, Inc.Inventor: Anders Lind
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Publication number: 20220045656Abstract: A class-D amplifier with multiple “nested” levels of feedback. The class-D amplifier surrounds an inner feedback loop, which takes the output of a switching amplifier and corrects for errors generated across the switching amplifier, with additional feedback loops that also take the output of the switching amplifier.Type: ApplicationFiled: August 18, 2021Publication date: February 10, 2022Inventor: Anders Lind
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Publication number: 20220006435Abstract: An amplifier having one or more channels where each channel includes a two half bridges (a master and slave sub-channel). The sub-channels can be connected either in parallel or in a full-bridge configuration via internal switches that route signals to a pair of speaker jacks. One switch in the amplifier has a first position that selectively connects the outputs of the master and slave sub-channel to the same input of the speaker load so that the two sub-channels will drive the speaker load in parallel and a second position where the output of the slave sub-channel is connected to another input of the speaker load so that the master sub-channel and the slave sub-channel will drive the speaker load in a Full-bridge configuration.Type: ApplicationFiled: July 12, 2021Publication date: January 6, 2022Inventors: Anders Lind, Matthew Skogmo
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Patent number: 11128270Abstract: A class-D amplifier with multiple “nested” levels of feedback. The class-D amplifier surrounds an inner feedback loop, which takes the output of a switching amplifier and corrects for errors generated across the switching amplifier, with additional feedback loops that also take the output of the switching amplifier.Type: GrantFiled: May 21, 2020Date of Patent: September 21, 2021Assignee: QSC, LLCInventor: Anders Lind
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Patent number: D950769Type: GrantFiled: October 11, 2019Date of Patent: May 3, 2022Assignee: Q-LINEA ABInventors: Markus Klintstedt, Peter Olsson, Anders Lind, Simon Uhrberg, Richard Kroon, Jerker Persson, Charlotta Goransson, Emma Rennel Dickens
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Patent number: D1019981Type: GrantFiled: April 27, 2022Date of Patent: March 26, 2024Assignee: Q-LINEA ABInventors: Anders Lind, Caroline Johansson, Daniel Dolk Djurberg, Henrik Soderstrom, Jan Grawe, Jonas Jarvius, Jonas Melin, Karl Skold, Magnus Sandow, Markus Lindblom, Richard Kroon, Sara Frolander, Sebastian Carlsson, Simon Uhrberg, Ake Strese, Magnus Forslund