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:
Nov. 01, 2016
Filed:
Jan. 22, 2016
Freescale Semiconductor, Inc., Austin, TX (US);
FREESCALE SEMICONDUCTOR, INC., Austin, TX (US);
Abstract
A voltage switch for handling negative voltages includes an input terminal coupled to a voltage that is greater than a voltage rating of oxide in the voltage switch, a top capacitor plate pre-charge module including three cascoded p-channel transistors coupled between a supply voltage and a top plate of a capacitor, a bottom capacitor plate pre-charge module including two cascoded n-channel transistors coupled between a bottom plate of the capacitor and ground, and an output voltage module including an output terminal and four cascoded n-channel transistors with control electrodes of a first and fourth of the cascoded n-channel transistors coupled to a boost node. Control electrodes of a second and third of the cascoded n-channel transistors coupled to the top plate of the capacitor. A voltage switch for positive voltages is also disclosed.