GLITCH SUPPRESSION APPARATUS AND METHOD
    171.
    发明公开

    公开(公告)号:US20230281092A1

    公开(公告)日:2023-09-07

    申请号:US18317420

    申请日:2023-05-15

    CPC classification number: G06F11/263 G06F1/06 G06F11/2236

    Abstract: An apparatus includes a main core processor configured to receive a first signal through a first main buffer, a second signal through a second main buffer, a third signal through a third main buffer, and a fourth signal through a fourth main buffer, a shadow core processor configured to receive the first signal through a first shadow buffer, the second signal through a second shadow buffer, the third signal through a third shadow buffer and the fourth signal through a fourth shadow buffer, and a first glitch suppression buffer coupled to a common node of an input of the first main buffer and an input of the first shadow buffer.

    LOW-VOLTAGE DIFFERENTIAL SIGNALING (LVDS) TRANSMITTER CIRCUIT

    公开(公告)号:US20230275586A1

    公开(公告)日:2023-08-31

    申请号:US18098421

    申请日:2023-01-18

    Abstract: A Low Voltage Differential Signaling (LVDS) transmitter includes driver circuit with a first transistor, a second transistor, a third transistor, a fourth transistor, a first resistor, and a second resistor. The first transistor is coupled between a first node and first output. The second transistor is coupled between the first node and a second output. The third transistor is coupled between the first output and a second node. The fourth transistor is coupled between the second output and the second node. The first resistor is coupled between the first output and a common mode node. The second resistor is coupled between the second output and the common mode node. A pre-driver circuit generates gate control signals controlling the first, second, third, and fourth transistors in response to a data signal. A controlled timing delay is applied to the timing of logic state transistors for the control signals.

    Active compensation circuit for a semiconductor regulator

    公开(公告)号:US11726514B2

    公开(公告)日:2023-08-15

    申请号:US17242067

    申请日:2021-04-27

    CPC classification number: G05F1/59 G05F1/575

    Abstract: An active compensation circuit for compensating the stability of a regulator is provided. The active compensation circuit presents an equivalent capacitance and an equivalent resistance and compensates stability of system using the equivalent capacitance and the equivalent resistance. The regulator includes a power transistor that receives a driving signal and channelize the required current to the Ips driven by this block. The regulator's stability is compensated using the active compensation circuit to provide an accurate output voltage without significantly compromising the accuracy (load regulation) and area of the system.

    Ambient light sensor and method
    174.
    发明授权

    公开(公告)号:US11713998B2

    公开(公告)日:2023-08-01

    申请号:US17663915

    申请日:2022-05-18

    CPC classification number: G01J1/4204 G01J1/44 G01J2001/446

    Abstract: According to one aspect, an ambient-light sensor includes a photodiode configured to generate an electrical signal according to an ambient light, a capacitive-feedback transimpedance amplifier connected at its input to the photodiode for receiving a signal generated by the photodiode and for generating as an output an amplified signal from the signal generated by the photodiode, and an auto-zero switch at the input of the capacitive-feedback transimpedance amplifier. The ambient-light sensor further includes a control circuit including a bootstrap circuit configured to receive an initial positive- or zero-voltage logic control signal, and then generate, from this initial logic control signal, an adapted logic control signal having a first positive voltage level and a second negative voltage control level for controlling the auto-zero switch.

    VOLTAGE LEVEL SHIFTER FOR SUB-THRESHOLD OPERATION

    公开(公告)号:US20230231559A1

    公开(公告)日:2023-07-20

    申请号:US18151337

    申请日:2023-01-06

    CPC classification number: H03K19/018521

    Abstract: Provided is a voltage level shifter that operates in sub-threshold voltages. The level shifter includes a level shifting stage. The level shifting stage receives a first signal from a first voltage domain and outputs a second signal to a second voltage domain. The level shifter includes a first auxiliary stage. In response to the first signal having a first voltage level corresponding to a first logical state and a first node of the level shifting stage having a supply voltage level, the first auxiliary stage sources current to a second node of the level shifting stage. Sourcing the current to the second node accelerates a transition of the first node to a reference voltage. The level shifting stage outputs a second signal to a second voltage domain.

    POSITIVE AND NEGATIVE CHARGE PUMP CONTROL
    178.
    发明公开

    公开(公告)号:US20230198386A1

    公开(公告)日:2023-06-22

    申请号:US18168936

    申请日:2023-02-14

    CPC classification number: H02M3/07 G11C5/145

    Abstract: A voltage supply circuit and a method for controlling a voltage supply circuit are provided. The voltage supply circuit includes a positive charge pump stage that generates a positive voltage and a negative charge pump stage that generates a negative voltage. The voltage supply circuit also includes a control stage that compares a voltage representative of the negative voltage with a reference voltage and causes a slope of the positive voltage to decrease when the voltage representative of the negative voltage exceeds the reference voltage.

    Voltage gain amplifier architecture for automotive radar

    公开(公告)号:US11658624B2

    公开(公告)日:2023-05-23

    申请号:US17461123

    申请日:2021-08-30

    Abstract: Disclosed herein is a method including sinking current from a pair of input transistors of a differential amplifier while sourcing more current to the pair of input transistors than is sunk. The method further includes generating a pair of input differential signals using a pair of input voltage regulators, and amplifying a difference between the pair of input differential signals to produce a pair of differential output voltages, using the differential amplifier. The method also includes amplifying the pair of differential output voltages using at least one voltage gain amplifier, and generating control signals for current sources that source the current to the pair of input transistors of the differential amplifier, from the pair of differential output voltages after at least amplification.

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