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:
Sep. 04, 2007
Filed:
Jun. 09, 2005
Applicants:
Yung-hsin Chiang, Taipei Hsien, TW;
Lai-hua Luo, Xi-An, CN;
Inventors:
Yung-Hsin Chiang, Taipei Hsien, TW;
Lai-Hua Luo, Xi-An, CN;
Assignee:
ADDtek Corp., Songshan District, Taipei, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 3/00 (2006.01); H02H 3/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
An integrated circuit provides a load with back-flow and open-circuit protection and includes a load, a trigger circuit, and a shunt circuit. The integrated circuit provides large-size LED displays having series LED connection with back-flow and open-circuit protection. The shunt circuit of the integrated circuit shunts the back-flow current from the LED when an ESD is applied, and offers an alternative current path when an LED fails so that other functioning LEDs can still emit light.