The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 25, 2022
Filed:
May. 21, 2020
Applicant:
Dialog Semiconductor Inc., Campbell, CA (US);
Inventors:
Wenduo Liu, Campbell, CA (US);
Kun Yang, Campbell, CA (US);
Assignee:
DIALOG SEMICONDUCTOR INC., Campbell, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 47/18 (2020.01); H05B 45/37 (2020.01); H05B 45/395 (2020.01); H04L 29/08 (2006.01);
U.S. Cl.
CPC ...
H05B 47/18 (2020.01); H04L 67/12 (2013.01); H05B 45/37 (2020.01); H05B 45/395 (2020.01);
Abstract
A DALI interface is provided that includes a digital isolator having an input terminal and an output terminal. A DALI bus controlled by a master device controls a binary voltage state of a voltage rail. A DFET couples between the input terminal and the output terminal to control a voltage of the input terminal responsive to the control of the DALI bus by the master device. The digital isolator responds to the control of the input terminal voltage to drive a digital signal through an isolation barrier to control a voltage of the output terminal to control a slave lighting device.