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:
Feb. 14, 1978
Filed:
Oct. 05, 1976
John M Rollett, London, EN;
Post Office, London, EN;
Abstract
An unconditionally stable gyrator circuit includes two interconnected d.c. differential amplifiers. The terminals of an input port are respectively connected to the non-inverting inputs of the amplifiers, that to the second amplifier being connected through a resistor. The inverting input of the first amplifier is connected to the non-inverting input of the second, the output of the first amplifier is connected through a resistor to the inverting input of the second amplifier and the output of the second amplifier is connected through a resistor to the non-inverting input of the first amplifier. Two alternative output ports are provided between the output of the first amplifier and the non-inverting input of the second, and between the output of the second amplifier and its inverting input. The output port which is not used has a resistive impedance connected across it.