公开(公告)号：US20200256961A1

公开(公告)日：2020-08-13

申请号：US16271119

申请日：2019-02-08

Applicant: Luminar Technologies, Inc.

Inventor： Stephen D. Gaalema ,  Robert D. Still

IPC: G01S7/486 ,  G01S17/10 ,  G01S17/89 ,  G01N21/55

Abstract: Amplifier input protection circuits are described. In one embodiment, a photoreceiver for a lidar system has a photodetector configured to generate an output current in response to received light. A transimpedance amplifier is configured to receive the output current and generate a voltage output corresponding to the output current in response thereto, and a diode circuit has a cathode coupled at a node between the photodetector output and the transimpedance amplifier input.

公开(公告)号：US11774561B2

公开(公告)日：2023-10-03

申请号：US16271119

申请日：2019-02-08

Applicant: Luminar Technologies, Inc.

Inventor： Stephen D. Gaalema ,  Robert D. Still

IPC: G01S7/48 ,  G01S7/4861 ,  G01N21/55 ,  G01S17/89 ,  G01S17/10 ,  H02H1/00 ,  H03F1/56

CPC classification number: G01S7/4861 ,  G01N21/55 ,  G01S17/10 ,  G01S17/89 ,  H02H1/00 ,  H03F1/56

Abstract: Amplifier input protection circuits are described. In one embodiment, a photoreceiver for a lidar system has a photodetector configured to generate an output current in response to received light. A transimpedance amplifier is configured to receive the output current and generate a voltage output corresponding to the output current in response thereto, and a diode circuit has a cathode coupled at a node between the photodetector output and the transimpedance amplifier input.