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. 22, 2021

Filed:

Apr. 01, 2020
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventor:

Masataka Nomura, Minowa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/012 (2006.01); H03B 5/36 (2006.01);
U.S. Cl.
CPC ...
H03K 3/012 (2013.01); H03B 5/36 (2013.01);
Abstract

An LVDS driver circuit includes: a current source; a differential unit configured to receive a first input signal and a second input signal and output a first output signal and a second output signal; and a feedback control circuit configured to be coupled to a first output node and a second output node and to perform, by outputting a control voltage to a gate of a transistor, feedback control that sets a common voltage of a differential output signal. In the differential unit, the first output node and the second output node are in a high impedance state in the high impedance mode, the differential unit is configured to output the first output signal and the second output signal in the signal output mode, and the control voltage in the high impedance mode is larger than the control voltage in the signal output mode.


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