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:
Jan. 08, 1991
Filed:
Dec. 15, 1989
Douglas C Wadsworth, Manotick, Ontario, CA;
Other;
Abstract
In the class of electronic circuits known as current conveyors, limitations in the areas of frequency bandwidth, transient response, output impedance, distortion, accuracy, and suitability for integration are overcome by means of a current conveyor comprising a Wilson current mirror of one polarity type cross-coupled with a second Wilson current mirror of the opposite polarity type. The first Wilson current mirror is connected to an input port and a reference port. The second Wilson current mirror is supplied with current by a current-splitting circuit which also supplies an output port with a currrent that is proportional to, preferably half, the current supplied to the second current mirror. An emitter de-generation compensation scheme may optimize the transient response and stability of the mirrors. The current splitter may also comprise current mirrors. A voltage-to-current converter may be realised by connecting suitable resistors in series with the input and reference ports, respectively.