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. 08, 1988
Filed:
Feb. 02, 1987
Cornelis D Hartgring, Eindhoven, NL;
Roelof H Salters, Eindhoven, NL;
Cormac M O'Connell, Eindhoven, NL;
Joannes J Koomen, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
An integrated logic circuit includes an output circuit for generating an output current which increases linearly in time. In integrated logic circuits the problem presents itself that the rapid variation of the (dis) charging of a data output causes a reverse voltage pulse VL across the inductance formed by the connection wires. The reverse voltage is limited by causing the charge or discharge current (for the load capacities present) to increase linearly to a maximum permissible value. This is done by driving the output field effect transistor with a control voltage VC which varies in time in the form of a square root.