公开(公告)号：US11482836B2

公开(公告)日：2022-10-25

申请号：US16774889

申请日：2020-01-28

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Samuel Rigault ,  Nicolas Moeneclaey ,  Xavier Branca

IPC: H01S5/042 ,  H01S5/068

Abstract: A driver circuit includes a fly capacitor with a first end and a second end. The driver circuit includes a laser diode having an anode and a cathode. The driver circuit is configured to operate in first and second operating states. The anode is coupled to the first end of the fly capacitor. In the first operating state, the cathode is coupled to a first voltage supply node, the first end of the fly capacitor is coupled to a second voltage supply node, and the second end of the fly capacitor is coupled to a first reference terminal. In the second operating state, the cathode is coupled to a second reference terminal and decoupled from the first voltage supply node, the first end of the fly capacitor is decoupled from the second voltage supply node, and the second end of the fly capacitor is coupled to a third reference terminal.

公开(公告)号：US20210234336A1

公开(公告)日：2021-07-29

申请号：US16774889

申请日：2020-01-28

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Samuel Rigault ,  Nicolas Moeneclaey ,  Xavier Branca

IPC: H01S5/042

Abstract: A driver circuit includes a fly capacitor with a first end and a second end. The driver circuit includes a laser diode having an anode and a cathode. The driver circuit is configured to operate in first and second operating states. The anode is coupled to the first end of the fly capacitor. In the first operating state, the cathode is coupled to a first voltage supply node, the first end of the fly capacitor is coupled to a second voltage supply node, and the second end of the fly capacitor is coupled to a first reference terminal. In the second operating state, the cathode is coupled to a second reference terminal and decoupled from the first voltage supply node, the first end of the fly capacitor is decoupled from the second voltage supply node, and the second end of the fly capacitor is coupled to a third reference terminal.

公开(公告)号：US20230045492A1

公开(公告)日：2023-02-09

申请号：US17963759

申请日：2022-10-11

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Samuel Rigault ,  Nicolas Moeneclaey ,  Xavier Branca

IPC: H01S5/042 ,  H01S5/068

Abstract: A driver circuit includes a fly capacitor with a first end and a second end. The driver circuit includes a laser diode having an anode and a cathode. The driver circuit is configured to operate in first and second operating states. The anode is coupled to the first end of the fly capacitor. In the first operating state, the cathode is coupled to a first voltage supply node, the first end of the fly capacitor is coupled to a second voltage supply node, and the second end of the fly capacitor is coupled to a first reference terminal. In the second operating state, the cathode is coupled to a second reference terminal and decoupled from the first voltage supply node, the first end of the fly capacitor is decoupled from the second voltage supply node, and the second end of the fly capacitor is coupled to a third reference terminal.

公开(公告)号：US11211770B2

公开(公告)日：2021-12-28

申请号：US16577103

申请日：2019-09-20

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Samuel Rigault ,  Nicolas Moeneclaey

IPC: H01S5/042 ,  H01S5/026 ,  H01S5/06

Abstract: A circuit includes a laser diode and a switched-capacitance charge pump coupled to control the laser diode. The charge pump can include a capacitor and a switching circuit that is capable of triggering a charge and discharge of the capacitor. The switching circuit can include a switch and an inverting circuit.