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:
May. 15, 2018
Filed:
Oct. 07, 2016
Kilopass Technology, Inc., San Jose, CA (US);
Sang-soo Lee, Cupertino, CA (US);
Kilopass Technology, Inc., San Jose, CA (US);
Abstract
Voltage reference circuits configured to generate a voltage reference with a programmable temperature slope are disclosed. By combining and programming a PTAT (Proportional To Absolute Temperature) voltage generation circuit and a CTAT (Complementary To Absolute Temperature) voltage generation circuit, desired temperature slope for the voltage reference is obtained. To adjust both temperature slope and offset of the voltage reference, the voltage reference circuits include a bandgap reference circuit. The bandgap reference circuit is used to create a temperature independent current, which is coupled to a programmable string of resistors and programmable string of MOSFETs to produce a desired temperature slope for the voltage reference. The desired offset of the voltage reference is obtained by the temperature-independent current into another string of programmable resistors. A circuit architecture and method to control the temperature slope and offset of the voltage reference independently is disclosed.