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    THRESHOLD VOLTAGE SENSOR AND A CHIP USING THE THRESHOLD VOLTAGE SENSOR
    1.
    发明公开
    THRESHOLD VOLTAGE SENSOR AND A CHIP USING THE THRESHOLD VOLTAGE SENSOR 审中-公开

    公开(公告)号：EP4394541A1

    公开(公告)日：2024-07-03

    申请号：EP23200643.7

    申请日：2023-09-28

    申请人： MediaTek Inc.

    发明人： WU, Wan-Ling ,  TSAI, Hung-Chieh

    IPC分类号： G05F3/20 ,  G05F3/26

    CPC分类号： G05F3/205 ,  G05F3/262

    摘要： A low-cost and high-accuracy threshold voltage (Vth) sensor is shown. In addition to a current mirror implemented by an operational amplifier and two metal-oxide-semiconductor field-effect transistors (MOSFETs), the Vth sensor uses an active device and a diode-connected MOSFET. The active device is provided to determine a constant current that is mirrored from the first MOSFET to the second MOSFET of the current mirror. The diode-connected MOSFET is coupled between the drain terminal of the second MOSFET and the ground terminal. The constant current flows through the diode-connected MOSFET to generate an output voltage that contains information about a threshold voltage (Vth) of a MOSFET.

    VOLTAGE REGULATORS WITH SLICED POLE TRACKING AND METHOD
    2.
    发明公开
    VOLTAGE REGULATORS WITH SLICED POLE TRACKING AND METHOD 审中-公开

    公开(公告)号：EP4354248A1

    公开(公告)日：2024-04-17

    申请号：EP22306544.2

    申请日：2022-10-12

    申请人： NXP B.V.

    发明人： Darthenay, Frederic

    IPC分类号： G05F1/565 ,  G05F1/575 ,  G05F3/26

    CPC分类号： G05F1/575 ,  G05F1/565 ,  G05F3/262

    摘要： Systems and methods for providing voltage regulators with sliced pole tracking are discussed. In some embodiments, a voltage regulator may include: an error amplifier, a voltage-to-current converter coupled to the error amplifier, and a current-to-current converter coupled to the voltage-to-current converter, where the current-to-current converter comprises a sliced pole tracking circuit coupled to a power device, and where the power device is configured to provide an output voltage to a load.

    BIAS CIRCUIT AND AMPLIFIER DEVICE
    9.
    发明公开
    BIAS CIRCUIT AND AMPLIFIER DEVICE 审中-公开

    公开(公告)号：EP4007163A1

    公开(公告)日：2022-06-01

    申请号：EP21210672.8

    申请日：2021-11-26

    申请人： RichWave Technology Corp.

    发明人： Peng, Tien-Yun ,  Chen, Chih-Sheng

    IPC分类号： H03F1/30 ,  H03F3/19 ,  H03F3/345 ,  G05F3/26

    摘要： A bias circuit (100) for an RF amplifier (AMP) includes a current mirror circuit (110), an operational amplifier (120), and a bias generating circuit (130). The current mirror circuit (110) includes a reference branch circuit (112) and at least one mirror branch circuit (114). The reference branch circuit (112) generates a reference current (Iref) according to a base current (IB), and the at least one mirror branch circuit (114) generates at least one mirrored current (Im1) according to the reference current (Iref). The operational amplifier (120) receives a first voltage (V1) from the reference branch circuit (112) and a second voltage (V2) from the at least one mirror branch circuit (114), and adjusts the first voltage (V1) by generating a control voltage (Vctrl) according to the second voltage (V2). The bias generating circuit (130) generates a bias signal (Sbias) according to the at least one mirrored current (Im1).