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. 27, 1984
Filed:
Dec. 22, 1982
James A Topich, Centerville, OH (US);
NCR Corporation, Dayton, OH (US);
Abstract
Disclosed is an on-chip, dual polarity high voltage multiplier circuit consisting of a main high positive voltage multiplier and high negative voltage multiplier and an auxiliary high negative voltage multiplier coupled to the main multipliers to prevent turning on of parasitic transistors associated with the MOS diodes of the main multipliers and thereby extend the operating temperature range to 150.degree. C. and improve the fall time of the dual polarity multiplier. The auxiliary multiplier may be located in a common p-well with the main positive and negative multipliers or with the main negative multiplier and its output voltage is connected to this common well.