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:
Jul. 21, 1992
Filed:
Jul. 25, 1990
Akira Denda, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
An output circuit capable of limiting an output current from a BiMOS semiconductor integrated circuit without adversely affecting an operational speed includes a plurality of bipolar transistors connected to form a Darlington circuit and at least one field effect transistor which can be either a P-channel or an N-channel transistor. The circuit is capable of removing rise current limitations of the bipolar transistors in the Darlington circuit during a normal operation by using a single MOS transistor to provide a branch circuit for the Darlington circuit, which limits the output current of the circuit under the specific condition that it provides a high level output and its output terminal is short-circuited to the ground.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile