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公开(公告)号：US20240393275A1
公开(公告)日：2024-11-28
申请号：US18201063
申请日：2023-05-23
Inventor： Marc Zwalua , Folkert Diederik Roscam Abbing , Leon Alexander Loopik , Michael Alfred Kultgen
IPC: G01N27/02
Abstract: An electrochemical impedance spectroscopy (EIS) excitation system may include energy transfer circuitry, which may be configured to transfer energy from a first electrochemical device to a second electrochemical device. The EIS excitation system may also include a controller, which may be configured to control the energy transfer circuitry to generate an EIS excitation signal for the first electrochemical device. The controller may be configured to control the energy transfer circuitry to transfer energy in a first direction between the first electrochemical device and the second electrochemical device for a first portion of an EIS excitation signal cycle.
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Patent Agency Ranking
公开(公告)号：US20240061027A1
公开(公告)日：2024-02-22
申请号：US17820757
申请日：2022-08-18
Inventor： Leon Alexander Loopik , Christoph Sebastian Schwoerer , Cuyler Nicholas Latorraca , Gerd Trampitsch
IPC: G01R19/25
CPC classification number: G01R19/2513
Abstract: Techniques are described through which continuous gapless voltage measurements can be synchronized between devices with independent clock sources on an asynchronous bus by slightly adjusting a speed of a local clock source for a period of time. Also, a read-out technique is described through which the synchronous measurements can be read out in a coherent way. These techniques can allow a high-accuracy time-average of the battery cell voltage (or fuel cell voltage) to be reconstructed, while allowing the same results to be synchronous across an entire battery stack, for use in instantaneous voltage/current diagnostics or calculations.
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公开(公告)号：US12259414B2
公开(公告)日：2025-03-25
申请号：US17820757
申请日：2022-08-18
Inventor： Leon Alexander Loopik , Christoph Sebastian Schwoerer , Cuyler Nicholas Latorraca , Gerd Trampitsch
IPC: G01R19/25
Abstract: Techniques are described through which continuous gapless voltage measurements can be synchronized between devices with independent clock sources on an asynchronous bus by slightly adjusting a speed of a local clock source for a period of time. Also, a read-out technique is described through which the synchronous measurements can be read out in a coherent way. These techniques can allow a high-accuracy time-average of the battery cell voltage (or fuel cell voltage) to be reconstructed, while allowing the same results to be synchronous across an entire battery stack, for use in instantaneous voltage/current diagnostics or calculations.
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公开(公告)号：US20240027533A1
公开(公告)日：2024-01-25
申请号：US17871623
申请日：2022-07-22
Inventor： Leon Alexander Loopik , Pradeep Kotte-Prakasam , Caspar Petrus Laurentius Van Vroonhoven , Christoph Sebastian Schwoerer , James Michael Douglass
IPC: G01R31/389 , G01R31/385
CPC classification number: G01R31/389 , G01R31/385
Abstract: A system for measuring a complex impedance associated with an arrangement of battery or fuel cells in an energy storage system may include a controller, a current measurement device, and voltage measurement devices. The current measurement device may be shared by the cells for measuring a test current provided to the cells. The voltage measurement devices may be respectively coupled across corresponding cells. The controller, the current measurement device, and the voltage measurement devices may be coupled together using a DC isolated bus. The controller may determine a respective complex impedance of corresponding groups of the cells using a complex voltage measured by a respective voltage measurement device coupled across a corresponding group of the cells and a complex current measured by the complex current measurement device. The controller may be configured to compensate for an asynchrony between particular ones of the current measurement device and the voltage measurement devices via the DC isolated bus.
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公开(公告)号：US12249978B2
公开(公告)日：2025-03-11
申请号：US17932878
申请日：2022-09-16
Inventor： Gerd Trampitsch , Leon Alexander Loopik
IPC: H03K17/082 , H03K19/003
Abstract: A charge pump is connected between a source and a body of the switch. Such a configuration avoids a condition in which the body diode opens for negative drain-to-source voltage (Vds) across the switch. Such a configuration also avoids a condition in which the switch control circuit generates control signals referenced to a body potential rather than a source potential, thereby allowing the switch to reliably turn off even for negative Vds. An additional gain stage ensures that the switch can be properly turned on. The techniques can be used to generate switches that enable highly linear processing of bipolar differential signals even far outside of the supply range.
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公开(公告)号：US20240097670A1
公开(公告)日：2024-03-21
申请号：US17932878
申请日：2022-09-16
Inventor： Gerd Trampitsch , Leon Alexander Loopik
IPC: H03K17/082 , H03K19/003
CPC classification number: H03K17/0822 , H03K19/00315
Abstract: A charge pump is connected between a source and a body of the switch. Such a configuration avoids a condition in which the body diode opens for negative drain-to-source voltage (Vds) across the switch. Such a configuration also avoids a condition in which the switch control circuit generates control signals referenced to a body potential rather than a source potential, thereby allowing the switch to reliably turn off even for negative Vds. An additional gain stage ensures that the switch can be properly turned on. The techniques can be used to generate switches that enable highly linear processing of bipolar differential signals even far outside of the supply range.
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