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. 10, 2012
Filed:
Apr. 20, 2010
Jean-claude Duby, Saint Egreve, FR;
Fabrice Blanc, Vinay, FR;
Jean-Claude Duby, Saint Egreve, FR;
Fabrice Blanc, Vinay, FR;
ARM Limited, Cambridge, GB;
Abstract
A cascoded level shifter for receiving an input signal in a low voltage range and for generating an output signal in a high voltage range is disclosed. The cascoded level shifter is subdivided into a first voltage section and a second voltage section, the first voltage section having a lower voltage supply than the second voltage section, and a combined voltage across the first voltage section and the second voltage section corresponding to the high voltage range, the cascoded level shifter comprising: an input node configured to receive an input signal; a cascoded device disposed in one of the first voltage section and the second voltage section, the cascoded device comprising a driver switch connected in series with a cascode switch at a midpoint node, the cascode switch switching in dependence on a reference voltage of a reference node and the input signal; and reference voltage perturbation circuitry, configured to cause a transient perturbation to the reference voltage in response to a transition of the input signal to cause the cascode switch to switch.