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. 03, 2017
Filed:
Nov. 06, 2014
Treehouse Design, Inc., Colorado Springs, CO (US);
Neaz Farooqi, Colorado Springs, CO (US);
Glenn E. Noufer, Colorado Springs, CO (US);
Randall L. Sandusky, Divide, CO (US);
Neaz Farooqi, Colorado Springs, CO (US);
Glenn E. Noufer, Manitou Springs, CO (US);
Randall L. Sandusky, Divide, CO (US);
Treehouse Design, Inc., Colorado Springs, CO (US);
Abstract
A digital level shifter adapted to shift an input signal from switching in a low voltage range, to an output switching in a high voltage range has a glitch generator configured to generate pulses at rising and falling transitions of the input signal. Glitch generator output triggers a multiple-level current source to a high current mode, operating in a low current mode at other times. The current source feeds a differential pair of high voltage transistors with a first transistor of the pair having a gate coupled to the input signal and a second transistor of the pair having a gate coupled to a complement of the input signal. An active load and buffer circuit receives current from the differential pair and drives the output accordingly.