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:
Sep. 20, 2022

Filed:

Nov. 05, 2021
Applicant:

Advanced Analog Technology, Inc., Zhubei, TW;

Inventor:

Kun-Hsu Lee, Zhubei, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/22 (2006.01); H03K 3/012 (2006.01); H03K 17/687 (2006.01); H03K 5/24 (2006.01);
U.S. Cl.
CPC ...
H03K 3/012 (2013.01); H03K 5/24 (2013.01); H03K 17/6872 (2013.01);
Abstract

A power on and power down reset circuit includes a reference voltage generation module, a monitoring voltage generation module, and a voltage comparator. The reference voltage generation module is utilized to generate a reference voltage with a first PMOS transistor, a second PMOS transistor, a third PMOS transistor, a first NMOS transistor, a second NMOS transistor, a third NMOS transistor, a first resistance, and a second resistance. The monitoring voltage generation module is utilized to generate a monitoring voltage. The voltage comparator is utilized to generate a reset voltage by comparing the reference voltage to the monitoring voltage. Thus, the power on and power down reset circuit can achieve the effect of power savings and decreasing error rate of the reset voltage.


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