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. 10, 1984
Filed:
Feb. 11, 1982
Calvin D Diller, Beaverton, OR (US);
Tektronix, Inc., Beaverton, OR (US);
Abstract
A D.C. stabilization circuit is provided for a follower-type amplifier in which a correction current is generated to maintain a constant operating point of the follower device. A blocking capacitor between a signal source and the follower device permits the bias voltage to self adjust. In a preferred embodiment, the correction current is generated by a transconductance amplifier which compares the output voltage with a signal input voltage, and the correction current is connected directly to the junction of the blocking capacitor and the input of the follower device. The follower device may suitably be a field-effect transistor, a bipolar transistor, or a multi-stage follower composed of both types of devices.