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.

Date of Patent:
Jun. 27, 2017

Filed:

Jun. 08, 2015
Applicant:

Kabushiki Kaisha Toshiba, Minato-ku, Tokyo, JP;

Inventors:

Akira Yamauchi, Yokohama, JP;

Hiroyuki Tsurumi, Fujisawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/34 (2006.01); H03F 3/21 (2006.01); H03F 3/30 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H03F 3/211 (2013.01); H03F 1/342 (2013.01); H03F 3/3028 (2013.01); H03F 3/45475 (2013.01); H03F 2200/03 (2013.01); H03F 2200/135 (2013.01); H03F 2200/91 (2013.01); H03F 2203/21181 (2013.01); H03F 2203/45138 (2013.01); H03F 2203/45511 (2013.01);
Abstract

The current feedback output circuit includes first and second transistors. The current feedback output circuit includes a current amplifier that has a non-inverting input terminal, an inverting input terminal, a first output terminal and a second output terminal, an input impedance of the non-inverting input terminal being higher than an input impedance of the inverting input terminal, and flows a current obtained by amplifying the difference between a current of an input signal to the non-inverting input terminal and a current input to the inverting input terminal between the first output terminal and the second output terminal. The current feedback output circuit includes first to sixth current mirror circuits. The current feedback output circuit includes a current feedback circuit that supplies a current responsive to a voltage at the signal output terminal to the inverting input terminal.


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