Algorithm for high speed SAR ADC
    81.
    发明授权

    公开(公告)号:US11711094B2

    公开(公告)日:2023-07-25

    申请号:US17558610

    申请日:2021-12-22

    CPC classification number: H03M1/466 H03M1/124

    Abstract: High speed, high dynamic range SAR ADC method and architecture. The SAR DAC comparison method can make fewer comparisons with less charge/fewer capacitors. The architecture makes use of a modified top plate switching (TPS) DAC technique and therefore achieves very high-speed operation. The present disclosure proffers a unique SAR ADC method of input and reference capacitor DAC switching. This benefits in higher dynamic range, no external decoupling capacitory requirement, wide common mode range and overall faster operation due to the absence of mini-ADC.

    Reference generator using FET devices with different gate work functions

    公开(公告)号:US11687111B2

    公开(公告)日:2023-06-27

    申请号:US16996252

    申请日:2020-08-18

    CPC classification number: G05F3/262

    Abstract: A reference signal generator circuit can be configured to provide a temperature-compensated voltage reference signal at an output node. The reference signal generator can include a diode-connected first FET device coupled between a supply node and the output node, and a flipped-gate transistor coupled between the output node and a reference node. The reference signal generator can include a bias current source configured to provide a bias current to the output node to adjust a current density in the flipped-gate transistor relative to a current density in the first transistor.

    MAGNETIC SENSOR SYSTEM
    83.
    发明公开

    公开(公告)号:US20230194237A1

    公开(公告)日:2023-06-22

    申请号:US18067869

    申请日:2022-12-19

    CPC classification number: G01B7/30

    Abstract: Example magnetic sensor system includes a magnet mounted on a rotatable shaft, and a magnetic sensing device in a vicinity of the magnet. The magnetic sensing device includes an angle sensor configured to detect an orientation of a magnetic field generated by the magnet as the rotatable shaft is rotated, a magnetic multi-turn sensor configured to detect a number of turns of the magnetic field generated by the magnet as the rotatable shaft is rotated, a magnetic disk mounted on the rotatable shaft, wherein the disk comprises at least a first track for inducing a change in a magnetic field generated by the magnetic disk, wherein the first track is formed from a plurality of curved segments distributed around the circumference of the magnetic disk, and a first incremental sensor configured to detect changes in the magnetic field induced by the first track as the rotatable shaft is rotated.

    MANAGING OPTICAL POWER IN LASER SYSTEM

    公开(公告)号:US20230134679A1

    公开(公告)日:2023-05-04

    申请号:US17995693

    申请日:2021-04-06

    Abstract: A device for managing power of a laser source in a laser-based apparatus includes switched-mode power controller circuitry. The power controller circuitry further includes a controller output configured to be coupled to reservoir capacitor of a laser source to provide a first mode of regulating charging of the reservoir capacitor between illuminations of the laser source and a second mode of regulating charging of the reservoir capacitor during illuminations of the laser source.

    Magnetic sensor system for motor control

    公开(公告)号:US11637482B2

    公开(公告)日:2023-04-25

    申请号:US17448628

    申请日:2021-09-23

    Abstract: The present disclosure provides a magnetic sensor system for monitoring the position of the rotor relative to the stator for use in electronic motor commutation. The system uses two magnetic sensors with a back bias magnet, the magnetic sensors being configured to detect changes in the magnetic field direction caused by the magnetic field interacting with two moveable targets that are being rotated by the motor shaft. The unique phase shift between the signals measured at each sensor can thus be used to determine the relative position between the stator and the rotor. In this respect, the system makes use of the Nonius or Vernier principle to measure rotational displacement, however, the scale of the encoder is defined by the number of motor pole pairs.

    CIRCUIT AND METHOD OF TRANSMITTING DIGITAL DATA WITH ERROR DETECTION

    公开(公告)号:US20230099584A1

    公开(公告)日:2023-03-30

    申请号:US17956387

    申请日:2022-09-29

    Abstract: There is disclosed a system for transmitting digital data with error detection, the system comprising a sender, configured to receive source data and to send transfer data, and a receiver configured to receive the transfer data and to output result data, wherein the sender is further configured to receive the source data, to numerically multiply the source data by an integer number greater than 2, and to output the multiplied source data as the transfer data, and wherein the receiver is further configured to receive the transfer data, to check if dividing the transfer data by the integer number results in an integer result, and, if the checking fails, to output an error indication, and, if the checking succeeds, to output the transfer data divided by the integer number as the result data. Also, a corresponding method is disclosed.

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