公开(公告)号：US11552449B2

公开(公告)日：2023-01-10

申请号：US17331715

申请日：2021-05-27

Applicant: OSRAM OLED GmbH

Inventor： Andreas Fröhlich ,  Hubert Halbritter ,  Josip Maric

IPC: H01S3/00 ,  H01S5/026 ,  H01S5/042 ,  H01S5/068 ,  H01S5/02345 ,  H01S5/0236 ,  H01S5/062 ,  H01S5/0237

Abstract: A semiconductor radiation source includes at least one semiconductor chip that generates radiation; and at least one capacitor body, wherein the semiconductor chip and the capacitor body are stacked on top of each other, the semiconductor chip directly electrically connects in a planar manner to the capacitor body, the semiconductor chip is a ridge waveguide laser, and a ridge waveguide of the semiconductor chip is arranged on a side of the semiconductor chip facing away from the capacitor body.

公开(公告)号：US20210288464A1

公开(公告)日：2021-09-16

申请号：US17331715

申请日：2021-05-27

Applicant: OSRAM OLED GmbH

Inventor： Andreas Fröhlich ,  Hubert Halbritter ,  Josip Maric

IPC: H01S5/026 ,  H01S5/042 ,  H01S5/068 ,  H01S5/02345 ,  H01S5/0236 ,  H01S5/062 ,  H01S5/0237

Abstract: A semiconductor radiation source includes at least one semiconductor chip that generates radiation; and at least one capacitor body, wherein the semiconductor chip and the capacitor body are stacked on top of each other, the semiconductor chip directly electrically connects in a planar manner to the capacitor body, the semiconductor chip is a ridge waveguide laser, and a ridge waveguide of the semiconductor chip is arranged on a side of the semiconductor chip facing away from the capacitor body.

公开(公告)号：US10785841B2

公开(公告)日：2020-09-22

申请号：US16328794

申请日：2017-08-30

Applicant: OSRAM OLED GmbH

Inventor： Andreas Wojcik ,  Hubert Halbritter ,  Josip Maric

IPC: H05B45/37 ,  H05B45/46 ,  H01S5/40 ,  H05B45/44 ,  H01S5/042

Abstract: A driver circuit for at least one light-emitting optoelectronic component includes a control circuit having a capacitor and a control switch, wherein the control switch electrically connects to the component such that the component is supplied with current by the capacitor as a function of a switching state of the control switch, and a charging circuit having at least a first charging switch, a bias resistor and a buffer capacitor, wherein the charging circuit electrically connects to the capacitor and is configured to charge the capacitor through the bias resistor, and the buffer capacitor is linked to a connecting line between the bias resistor and the capacitor.