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公开(公告)号：US20250132758A1
公开(公告)日：2025-04-24
申请号：US19007345
申请日：2024-12-31
Inventor： Jofrey G. Santillan , Declan McDonagh , David Aherne
IPC: H03K17/14
Abstract: A new field-effect transistor (FET) based switch for use in/with high voltage precision instruments is provided. The switch can enable leakage compensation. The switch can comprise a FET device and a compensation circuit coupled to the FET device to replicate and compensate for the FET device leakage, such that the switch appears not to leak current. The compensation circuit may comprise a sense device which acts as a scaled replica of the FET device being compensated. The sense device's leakage current can then be measured, reproduced at the scale factor, and injected back to the drain terminal of the FET device.
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公开(公告)号：US12282047B2
公开(公告)日：2025-04-22
申请号：US18177868
申请日：2023-03-03
Inventor： Ricardo Pureza Coimbra , Mateus Ribeiro Vanzella
IPC: G01R19/165
Abstract: A voltage monitor circuit that signals if an input voltage is above or below an internally established reference level proportional to the bandgap voltage of silicon. The voltage monitor circuit mitigates main error sources generally associated with bandgap reference generation such that high accuracy and good performance may be achieved at low power cost. The techniques allow voltage monitors (e.g., brown-out and power on reset (POR) detectors) to be implemented with higher accuracy, lower power consumption, smaller area cost, and support to lower supply voltage than other solutions.
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公开(公告)号：US20250116689A1
公开(公告)日：2025-04-10
申请号：US18481646
申请日：2023-10-05
Inventor： Sanjay Rajasekhar
IPC: G01R19/257 , G01R15/04 , G01R19/25
Abstract: A monitoring circuit includes a digital to analog converter (DAC) circuit; a reference circuit configured to produce multiple reference levels; a resistive divider circuit including a first terminal coupled to the output of the DAC circuit, a second terminal coupled to the reference circuit, and an output terminal to provide a measurement voltage; and a measurement circuit. The measurement circuit is configured to apply a first reference level to the second terminal of the resistive divider circuit and measure a first measurement voltage at the output terminal of the resistive divider circuit; apply a second reference level to the second terminal of the resistive divider circuit and measure a second measurement voltage at the output terminal of the resistive divider circuit; and calculate the DAC circuit output level using the first and second reference levels, and the first and second measurement voltages.
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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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Patent Agency Ranking
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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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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