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. 09, 2014
Filed:
Dec. 13, 2012
Applicant:
Stmicroelectronics R&d Co. Ltd. (Shanghai), Shanghai, CN;
Inventors:
Tina Shen, Shanghai, CN;
Anderson Yin, Shanghai, CN;
Assignee:
STMicroelectronics R&D (Shanghai) Co. Ltd, Shanghai, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 3/00 (2006.01); H04L 25/08 (2006.01); H03K 4/02 (2006.01); H03K 3/78 (2006.01);
U.S. Cl.
CPC ...
H03K 3/78 (2013.01); H04L 25/08 (2013.01); H03K 4/023 (2013.01);
Abstract
A Local Interconnect Network (LIN) driver circuit employs a charging/discharging current applied to the gate of a driver transistor coupled to an LIN bus. The charging current includes a constant charging current and an additional soft charging current, whereas the discharging current includes a constant discharging current and an additional soft discharging current. As a result of the soft charge/discharge components, there is a significant reduction in electromagnetic emission on the LIN bus.