RECEIVER WITH TUNABLE FILTER FOR LIGHT RANGE FINDING SYSTEM

    公开(公告)号:US20190219674A1

    公开(公告)日:2019-07-18

    申请号:US15870340

    申请日:2018-01-12

    CPC classification number: G01S7/486 G01S17/10 G01S17/936

    Abstract: A receiver for a light detection and range finding system is disclosed. The receiver can include an optoelectrical device to receive a pulse of light reflected from a target and to convert the pulse of light to a current pulse. The receiver can also include a transimpedance amplifier (TIA) to convert the current pulse to a voltage pulse. The receiver can also include a tunable filter that has an input coupled to an output of the TIA. The tunable filter can have a frequency response that is adjustable. The TIA and the tunable filter can be disposed on a single integrated circuit (IC) die.

    FAST REGULATOR ARCHITECTURE HAVING TRANSISTOR HELPER

    公开(公告)号:US20170351284A1

    公开(公告)日:2017-12-07

    申请号:US15175376

    申请日:2016-06-07

    CPC classification number: G05F1/575

    Abstract: Apparatus and methods for assisting a voltage regulator. In an example, a voltage regulator can include an error amplifier configured to compare a reference voltage with a representation of an output voltage of the voltage regulator, an output transistor coupled to a supply voltage and configured to receive an output of the error amplifier and to provide the output voltage, and an auxiliary-current circuit including a helper transistor having a terminal coupled to the output voltage, the helper transistor configured to turn on when the output voltage drops due to current demand from the load and to provide charge current to the load in addition to current provided by the output transistor.

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