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. 25, 1978
Filed:
Apr. 04, 1977
Christopher Ryland Huntley, Burnaby, CA;
GTE Lenkurt Electric (Canada) Ltd., Burnaby, CA;
Abstract
The disclosed voltage regulator circuit provides a regulated direct output voltage, across first and second output terminals, when an unregulated direct input voltage is applied across first and second input terminals. The second terminals are common to both input and output connections. A voltage reference device, having first and second electrodes, is connected so that the second electrode is connected to the second terminals. A first DC amplifier has an input circuit connected between the first input terminals and the first electrode, and an output circuit connected between the first output terminals and the first electrode. A second DC amplifier has an input circuit connected to the input circuit of the first DC amplifier and an output circuit connected to the output circuit of the first DC amplifier. The second DC amplifier, besides sharing the current load requirements with the first DC amplifier, also controls a bias current through the voltage reference device. The voltage reference device provides both amplifiers with a constant reference voltage enabling the amplifiers to maintain a constant output voltage despite changes in input line voltage.