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. 06, 2017

Filed:

Oct. 28, 2015
Applicant:

Electronics and Telecommunications Research Institute, Daejeon-si, KR;

Inventors:

Young Ho Kim, Sejong-si, KR;

Eui Suk Jung, Daejeon-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/153 (2006.01); H03K 5/1532 (2006.01); H03G 3/30 (2006.01); G01R 19/04 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H03K 5/1532 (2013.01); G01R 19/04 (2013.01); H03F 3/45183 (2013.01); H03F 3/45475 (2013.01); H03F 3/45968 (2013.01); H03G 3/30 (2013.01); H03G 3/3084 (2013.01); H03F 2200/435 (2013.01); H03F 2200/453 (2013.01); H03F 2203/45138 (2013.01); H03F 2203/45212 (2013.01);
Abstract

A peak detector using a charge pump is provided. The peak detector includes a differential amplifier configured to receive an input signal to be detected through an input node and amplify the received signal; a current control logic configured to create two or more current control signals by comparing a signal output from the differential amplifier with two or more reference voltages; a mirror current source portion comprising two or more mirror current sources configured to be driven respectively by the current control signals from the current control logic; a capacitor configured to be charged or discharged by currents output from the mirror current sources; and a reset circuit configured to reset a voltage of the capacitor.


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