公开(公告)号：US20160262228A1

公开(公告)日：2016-09-08

申请号：US15059053

申请日：2016-03-02

Applicant: EPISTAR CORPORATION

Inventor： Chih-Shu HUANG ,  Chang-Hseih WU ,  Min-Hsun HSIEH

IPC: H05B33/08

CPC classification number: H05B33/0809 ,  H02M5/25 ,  H05B33/0803 ,  Y02B20/348

Abstract: A driver includes a semiconductor chip, a bridge rectifier, and a current driver. The semiconductor chip includes a rectifying diode and a constant current source formed thereon. The bridge rectifier includes the rectifying diode. The current driver includes the first constant current source to provide a constant current.

Abstract translation: 驱动器包括半导体芯片，桥式整流器和电流驱动器。 半导体芯片包括形成在其上的整流二极管和恒流源。 桥式整流器包括整流二极管。 当前驱动器包括提供恒定电流的第一恒流源。

公开(公告)号：US20180295683A1

公开(公告)日：2018-10-11

申请号：US15945442

申请日：2018-04-04

Applicant: EPISTAR CORPORATION

Inventor： Chien-Kai TUNG ,  Chang-Hseih WU ,  Min-Hsun HSIEH

IPC: H05B33/08 ,  H02M7/00

Abstract: An LED driver for driving a light-emitting device (LED) includes a bridge rectifier, a current driver, and a protection circuit. The bridge rectifier includes a rectifying diode, and the bridge rectifier receives and converts an AC input power source to a DC power source having a DC current and a DC voltage. The current driver includes a constant current source. The bridge rectifier, the current driver, and the protection circuit are connected in series, and the constant current source is used to limit the magnitude of the direct current to drive the LED. The protection circuit includes a protection unit. The protection circuit connects the current driver and the LED. The LED includes a substrate and the rectifying diode, the constant current source, and the protection unit are formed together on the substrate.

公开(公告)号：US20190289685A1

公开(公告)日：2019-09-19

申请号：US16353526

申请日：2019-03-14

Applicant: EPISTAR CORPORATION

Inventor： Chao-Kai CHANG ,  Chen-Yu WANG ,  Chang-Hseih WU ,  Jai-Tai KUO

IPC: H05B33/08

Abstract: A light-emitting device has a stabilizing-current circuit, a current source having a high electron mobility transistor, and a light source electrically connected to the stabilizing-current circuit and the current source.

公开(公告)号：US20180078782A1

公开(公告)日：2018-03-22

申请号：US15709118

申请日：2017-09-19

Applicant: EPISTAR CORPORATION

Inventor： Min-Hsun HSIEH ,  Jai-Tai KUO ,  Chang-Hseih WU ,  Tzu-Hsiang WANG ,  Chi-Chih PU

IPC: A61N5/06 ,  A61B5/00 ,  H01L25/075 ,  H01L27/15

CPC classification number: A61N5/062 ,  A61B5/0059 ,  A61B2017/00057 ,  A61N5/0616 ,  A61N2005/0632 ,  A61N2005/0652 ,  A61N2005/0658 ,  H01L25/0756 ,  H01L27/15

Abstract: A light-emitting module includes a carrier, a plurality of light-emitting units, and a protection layer. The carrier has a lighting portion and an extending portion. The plurality of light-emitting units is disposed on the lighting portion. The protection layer covers the plurality of light-emitting units and the lighting portion, and exposes the extending portion.