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. 19, 1991
Filed:
Jun. 11, 1990
Stephen R Schenck, McKinney, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
The disclosure relates to a circuit and method of reducing inductive voltage spikes caused by an abrupt change in current by an output transistor, by providing an input node for receiving an input voltage signal, providing an output node, providing a first transistor coupled to the output node, receiving a predetermined voltage at the input node, controlling voltage control circuitry coupled between the input node and the first transistor and responsive to the predetermined voltage at the input node to control the voltage driving the first transistor with respect to time to provide a constant rate of change of current with respect to time in the first transistor and providing a second transistor coupled to the output node in parallel with the first transistor which turns on prior to the first transistor.