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公开(公告)号：US12261565B2
公开(公告)日：2025-03-25
申请号：US18198186
申请日：2023-05-16
Inventor： Thomas Ernst
Abstract: A new method and circuit arrangement for operating an electric motor, such as a stepper motor, in a control loop for preventing motor stall, the electric motor comprising at least a first motor coil and a second motor coil, the method comprising: operating the electric motor at a velocity equal to the target velocity; receiving a load value associated with an electric motor load; and determining whether the load value is greater than a load value threshold. Based on a determination that the load value is greater than the load value threshold decreasing the velocity of the electric motor to a velocity less than the target velocity.
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公开(公告)号：US12261548B2
公开(公告)日：2025-03-25
申请号：US17701996
申请日：2022-03-23
Inventor： Naoaki Nishimura , Abhishek Bandyopadhyay
IPC: H02M7/5387 , H04B3/50
Abstract: Apparatus and method for establishing a stable operating point of a H-bridge with a center shunt switch. The stable operating point lets a circuit connected to the H-bridge outputs work in a more ideal condition. As such, an H-bridge with a stable operating point will yield a higher performance and/or save power. Since common mode is one of the biggest sources of electromagnetic interference, a stable operating point in an H-bridge also suppresses EMI.
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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：US20250093182A1
公开(公告)日：2025-03-20
申请号：US18887354
申请日：2024-09-17
Inventor： Jan Kubik , Jochen Schmitt , Fernando Franco
IPC: G01D5/16
Abstract: Aspects of the present disclosure provide a magnetoresistive track for use in a magnetic multi-turn sensor, the magnetoresistive track comprising one or more looped sections. The looped sections can include a crossing where the magnetoresistive track crosses itself at substantially 90 degrees. In some cases, the looped portions may be further provided with syphon structures to prevent domain walls propagating around the magnetoresistive track as an external magnetic field rotates from becoming stuck at the crossing or propagating in the wrong direction at the crossing.
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公开(公告)号：US20250090037A1
公开(公告)日：2025-03-20
申请号：US18369745
申请日：2023-09-18
Inventor： Claire E. Leahy , Youri Victorovitch Ponomarev
IPC: A61B5/026
Abstract: A fluid sensor system and method of operating the fluid sensor system is disclosure herein. A fluid sensor device of the fluid sensor system can be connected with a treatment system in-line. The fluid sensor system may receive a second solution different from a first calibration fluid to use as a calibration fluid to reduce costs associated with storing calibration fluid inside the fluid sensor device prior to use with the treatment system.
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Patent Agency Ranking
公开(公告)号：US20250088187A1
公开(公告)日：2025-03-13
申请号：US18465847
申请日：2023-09-12
Inventor： Naoaki NISHIMURA
IPC: H03K17/687 , H03F3/45
Abstract: A two-terminal resistor includes an operational amplifier (op amp) and also a current mirror having a first transistor, a second transistor, and a common node connected to the first transistor, the second transistor, and an output of the op amp. The two-terminal resistor also includes a resistor having a first side configured to be a first terminal of the two-terminal resistor, and a second side connected to an inverting input of the op amp, the first transistor. The two-terminal resistor additionally includes a second terminal of the two-terminal resistor connected to the second transistor, and a non-inverting input of the op amp.
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公开(公告)号：US20250088155A1
公开(公告)日：2025-03-13
申请号：US18465877
申请日：2023-09-12
Inventor： Naoaki NISHIMURA
Abstract: An amplifier circuit includes a first operational amplifier (op amp) and a two-terminal synthesis resistor connected across a non-inverting input of the first op amp and an output of the first op amp. The two-terminal synthesis resistor includes a second op amp. The two-terminal synthesis resistor includes a current mirror having a first transistor, a second transistor, and a common node connected to the first transistor, the second transistor, and an output of the second op amp. The two-terminal synthesis resistor includes a resistor having a first side configured to be a first terminal of the two-terminal synthesis resistor, and a second side connected to an inverting input of the second op amp, and the first transistor. The two-terminal synthesis resistor includes a second terminal of the two-terminal synthesis resistor connected to the second transistor, and a non-inverting input of the second op amp.
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公开(公告)号：US12244278B2
公开(公告)日：2025-03-04
申请号：US17684288
申请日：2022-03-01
IPC: H03F3/45
Abstract: A capacitive amplifier device and technique for mitigating the perturbation within the switchable terminals of a feedback capacitor which is produced by the switching activity performed as part of the device's operation. The capacitive amplifier contains feedback components which can be switched without producing significant kickback or poorly behaved transitions due to the inclusion of at least one dedicated circuit. The dedicated circuit is a kickback limiter circuitry which is connected to a switchable node and is designed to reduce the kickback. The technique for reducing the kickback produced can be achieved by connecting and activating the kickback limiter circuitry.
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公开(公告)号：US20250060418A1
公开(公告)日：2025-02-20
申请号：US18789088
申请日：2024-07-30
Inventor： Claire Nelia LEVEUGLE , Joseph S. Bergeron , Michael O'Brien
IPC: G01R31/389 , G01R31/367 , G01R31/396 , H01M10/42 , H01M10/44 , H01M10/48
Abstract: Examples determine a reference complex impedance of a reference cell over a range of one or more frequencies. Examples determine an in situ complex impedance, over the range of one or more frequencies, of each of one or more cells of a battery with measurement equipment, the battery and the measurement equipment in situ in an end use system, the measurement equipment including sense conductor(s) coupled to each cell and force conductor(s) coupled to the battery. For each cell of the battery, examples determine a model complex impedance that, when in combination with the impedance of the cell, accounts at least in part for a difference between the in situ impedance of the cell and the reference impedance, the examples then adjust the in situ impedance as a function of the model impedance. Examples control operation of the battery based on the adjusted impedance of each of the particular cells.
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公开(公告)号：US20250055394A1
公开(公告)日：2025-02-13
申请号：US18233080
申请日：2023-08-11
Inventor： Thomas Ernst
Abstract: A new method and circuit arrangement for operating a stepper motor in a voltage-based operating mode with a control loop over the whole operating range of speeds of a stepper motor. The method/circuit arrangement includes calculating a load angle of the stepper motor. The load angle is then used to calculate a voltage-based control signal suitable for operating a known motor driver circuit, such as a chopper, to drive the stepper motor coils. This enables improved control over the stepper motor which can improve control stability.
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