公开(公告)号：US10326356B2

公开(公告)日：2019-06-18

申请号：US15315810

申请日：2015-04-30

Applicant: OSRAM GmbH

Inventor： Junnan He ,  Shaoping Chen

IPC: H05B33/08 ,  H02M1/42

Abstract: A boost power factor correction circuit, a driving circuit for light-emitting diodes and a lighting device are provided. The boost power factor correction circuit includes: a PFC controller; a PFC switch controlled by an output of the PFC controller; and an equivalent variable resistor connected between the PFC switch and the ground. A feedback current input of the PFC controller is connected to a node between the PFC switch and the equivalent variable resistor. The resistance of the equivalent variable resistor is controlled by the output voltage of the PFC circuit. In case that the PFC circuit operates under an mains AC or CCG input, the resistance keeps constantly minimum, and in case that the PFC circuit operates under an ECG input, the resistance increases as the output voltage of the PFC circuit decreases. The boost power factor correction circuit, the driving circuit for light-emitting diodes and the lighting device according to the present disclosure are able to be compatible with mains AC, CCG and ECG power supplies.

公开(公告)号：US10267500B2

公开(公告)日：2019-04-23

申请号：US14896407

申请日：2014-05-28

Applicant: OSRAM GmbH

Inventor： Junnan He ,  Yunsong Zhang ,  Quansheng Liu ,  Shijun Nie

IPC: F21K9/272 ,  F21V21/30 ,  F21V23/00 ,  F21Y103/10 ,  F21Y115/10 ,  F21K9/278 ,  F21K9/65 ,  F21V14/02

Abstract: Various embodiments may relate to an end cap for a lamp tube of an illuminating device, including a mounting ring fixedly mounted to one end of the lamp tube by means of an assembled end, and a cover plate for closing the mounting ring at a free end. The end cap further includes a rotating ring mounted between the mounting ring and the cover plate at the free end, the cover plate rotatably closes the mounting ring by means of the rotating ring. Further various embodiments relate to an illuminating device adopting the end cap.

公开(公告)号：US20160123543A1

公开(公告)日：2016-05-05

申请号：US14896407

申请日：2014-05-28

Applicant: OSRAM GmbH

Inventor： Junnan He ,  Yunsong Zhang ,  Quansheng Liu ,  Shijun Nie

IPC: F21K99/00 ,  F21V23/00

CPC classification number: F21V23/003 ,  F21K9/272 ,  F21K9/278 ,  F21K9/65 ,  F21V14/02 ,  F21V21/30 ,  F21Y2103/10 ,  F21Y2115/10

Abstract: Various embodiments may relate to an end cap for a lamp tube of an illuminating device, including a mounting ring fixedly mounted to one end of the lamp tube by means of an assembled end, and a cover plate for closing the mounting ring at a free end. The end cap further includes a rotating ring mounted between the mounting ring and the cover plate at the free end, the cover plate rotatably closes the mounting ring by means of the rotating ring. Further various embodiments relate to an illuminating device adopting the end cap.

Abstract translation: 各种实施例可以涉及用于照明装置的灯管的端盖，其包括通过组装的端部固定地安装到灯管的一端的安装环和用于在自由端封闭安装环的盖板 。 端盖还包括在自由端安装在安装环和盖板之间的旋转环，盖板通过旋转环可旋转地封闭安装环。 进一步的各种实施例涉及采用端盖的照明装置。