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:
Mar. 26, 1996
Filed:
Mar. 06, 1995
Kevin M Traynor, Austin, TX (US);
Hengwei Hsu, Austin, TX (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A low power level shift and buffer circuit (40) is used to level shift and amplify an output of an oscillator (14, 16, 18, 20, 22, 24) in a data processing application (10). A current mirror (58) and a reference current are used to provide a constant current source load for an inverter (56, 42). Separate controls for each of the two transistors forming a push/pull inverter (54, 50) eliminate a switching transient current by providing non-overlapping inputs to each of the two transistors. By eliminating the switching transient current, little power is consumed during the level shifting and amplification process. Furthermore, a significant amount of circuit area is not required and an output with fast rise and fall times is provided.