公开(公告)号：US10986715B1

公开(公告)日：2021-04-20

申请号：US16702028

申请日：2019-12-03

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Ching-Ran Lee ,  Chi-Chun Huang ,  Che-Min Kung ,  Wen-Tien Tsai ,  Yu-Jen Chen

IPC: H05B45/37 ,  H05B45/395 ,  H05B45/20 ,  H05B45/48 ,  H05B45/00

Abstract: In driving a segmented LED loading, an alternating current (AC) voltage is rectified into a direct current (DC) voltage; the DC voltage is regulated into an input voltage and the input voltage is maintained higher than a lowest voltage used for lighting at least one LED segment of the segmented LED loading; the input voltage and a current flowing through the segmented LED loading is detected to generate a switch control signal and a current control signal; respective operation states of each of a plurality of switches of a LED segment switch module are controlled by the switch control signal to control each LED segment of the segmented LED loading as power-supply state or no-power-supply state; and the current of the segmented LED loading is regulated based on the current control signal.

公开(公告)号：US09348351B2

公开(公告)日：2016-05-24

申请号：US13942872

申请日：2013-07-16

Applicant: Industrial Technology Research Institute

Inventor： Che-Min Kung ,  Jung-Min Hwang ,  Wei-Ming Chen ,  Chi-Chun Huang

IPC: H02M3/07 ,  G05F3/02

CPC classification number: G05F3/02 ,  H02M3/07 ,  Y10T307/747

Abstract: The present disclosure relates to a switch circuit. The switch circuit comprises: a plurality of storing elements and a plurality of switch elements. The plurality of switch elements coupled the plurality of storing elements for generating a step-down mode. Moreover, the switch elements, controllers and parts of resistors in the present disclosure are integrated in an integrated circuit so as to effectively reduce size and weight of the driving circuit, advance the circuit suitability, and decrease the development cost of the circuit.

Abstract translation: 本公开涉及一种开关电路。 开关电路包括：多个存储元件和多个开关元件。 多个开关元件耦合多个存储元件以产生降压模式。 此外，本公开的开关元件，控制器和电阻器的部件集成在集成电路中，以便有效地减小驱动电路的尺寸和重量，提高电路适配性，并降低电路的开发成本。