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:
Oct. 11, 2016

Filed:

Jun. 10, 2015
Applicant:

Green Solution Technology Co., Ltd., New Taipei, TW;

Inventors:

Li-Min Lee, New Taipei, TW;

Chao Shao, Wuxi, CN;

Ying-Ying Yang, Wuxi, CN;

Huan-Huan Zhang, Wuxi, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/06 (2006.01); H03K 5/14 (2014.01); H03K 5/00 (2006.01);
U.S. Cl.
CPC ...
H03K 5/14 (2013.01); H03K 2005/00019 (2013.01);
Abstract

A delay circuit includes a current circuit, a first current mirror circuit, a second current mirror circuit, a self-compensation circuit, and a delay capacitor. A fixed ratio is between the first current and the second current provided by the current circuit. The first current mirror circuit generates a first mirror current in response to the first current. A partial current of the second current flowing through the second current mirror circuit is a base current, and the second current mirror circuit generates a second mirror current in response to the base current. The self-compensation circuit generates a feedback current in response to the second mirror current. The delay capacitor generates a delay signal. The charging current is equal to the second current subtracting the base current. The first mirror current is the sum of the base current, the second mirror current, and the feedback current.


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