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:
Aug. 23, 1994
Filed:
Jan. 27, 1992
William E Headen, Jr, North Kingstown, RI (US);
Cherry Semiconductor Corporation, East Greenwich, RI (US);
Abstract
An error detection circuit having an output transistor of one conductivity type and a sense transistor and error detector transistor of an opposite conductivity type. An input voltage is provided at the collector of the output transistor and an output voltage is taken from the emitter of the output transistor. An emitter of the sense transistor is connected to the input voltage and the collector of the sense transistor is connected to the base of the output transistor. An emitter of the error detector transistor is connected to the collector of the sense transistor and a base of the error detector transistor is connected to the base of the sense transistor. The error detector transistor conducts when the sense transistor saturates indicating that the input voltage and output voltage have come within a predetermined voltage of one another.