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:
Jun. 11, 1985
Filed:
Sep. 27, 1982
David L Jose, Hamilton Square, NJ (US);
Winthrop S Pike, Princeton, NJ (US);
Jack Craft, Bridgewater, NJ (US);
RCA Corporation, Princeton, NJ (US);
Abstract
An amplifier, including a pair of emitter coupled non-complementary transistors operated at constant emitter, base and collector potentials, provides a bidirectional output current proportional to an AC signal to be rectified. The output current is applied to a common base connection of a pair of complementary emitter-coupled base-coupled transistors having a common emitter connection coupled via a linearizing feedback resistor to the base electrode of one of the amplifier transistors and via a load to a source of reference potential. The collector potentials of the complementary transistors are regulated and a full wave rectified output signal is produced by a cascade connection of complementary current mirror amplifiers having inputs coupled to the collector electrodes of the complementary transistors and an output coupled to the point of reference potential via a further load thereby providing the combined advantages of improved linearity and dynamic range characteristic of feedback types of rectifiers and improved stability and wide bandwidth characteristic of feedforward rectifiers.