公开(公告)号：US20240410993A1

公开(公告)日：2024-12-12

申请号：US18330914

申请日：2023-06-07

Applicant: STMicroelectronics International N.V.

Inventor： Alessandro NICOLOSI ,  Andrea GAMBERO ,  Juri GIOVANNONE

IPC: G01S7/4865 ,  G01S17/10 ,  G01S17/894

Abstract: An electronic system and method for generating a pulsed illumination signal in a multi-channel LIDAR application is provided. An example electronic system includes a pulsed signal generator, a pulse emitting circuit, and an illumination source. The pulsed signal generator includes a main switch, a selection switch controlling the flow of current to the illumination source, and a switching control circuit. The switching control circuit configured to receive an illumination source enabled signal indicating a difference between a duration of the illumination source enabled signal and a target duration of the illumination source enabled signal. The switching control circuit is configured to receive the duration target code and determine a main switch enable signal configured to activate the main switch and a selection switch enable signal configured to activate the selection switch, based at least in part on the duration target code and a target overlap.

公开(公告)号：US20240413813A1

公开(公告)日：2024-12-12

申请号：US18330871

申请日：2023-06-07

Applicant: STMicroelectronics International N.V.

Inventor： Andrea GAMBERO ,  Juri GIOVANNONE ,  Roberto Giorgio BARDELLI ,  Alessandro NICOLOSI

IPC: H03K5/01 ,  G04F10/00

Abstract: A control circuit and a method for delaying an electronic signal are provided, along with a time-to-digital converter including the control circuit. The example control circuit includes a first delay circuit having a first plurality of delay elements electrically connected in series and configured to generate a first control voltage associated with a first delay time. The control circuit further includes a second delay circuit having a second plurality of delay elements electrically connected at least in part in series. The second delay circuit is configured to generate a second control voltage associated with a second delay time. A first group of delay elements within the second plurality of delay elements exhibits the first delay time based on the first control voltage, and a second group of the second plurality of delay elements exhibits a second delay time based at least in part on the second control voltage.