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:
Aug. 28, 2018
Filed:
Jan. 24, 2018
Invecas, Inc., Santa Clara, CA (US);
Venkata N. S. N. Rao, Fremont, CA (US);
Majid Jalali Far, San Jose, CA (US);
Invecas, Inc., Santa Clara, CA (US);
Abstract
A bandgap reference voltage generator, comprises: a bias circuit configured to generate a start signal; a startup circuit having at least two serially-connected transistors configured to receive the start signal; a proportional-to-absolute-temperature ('PTAT') generation circuit having a first current mirror, an amplifier, a resistor, and transistors; and a complementary-to-absolute-temperature ('CTAT') generation circuit having a second current mirror, a passive network of resistors, and at least one transistor. The at least two serially-connected transistors are connected across a first input of the amplifier and a second input of the amplifier. An output of the amplifier is coupled to the first current mirror and the second current mirror. The passive network of resistors is coupled across outputs of the second current mirror. The CTAT generation circuit has an output node for outputting a bandgap reference voltage.