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.
Patent No.:
Date of Patent:
Dec. 12, 2023
Filed:
Dec. 30, 2020
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Kiyokazu Umimura, Chiba, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/00 (2006.01); H02M 1/12 (2006.01); H02M 3/158 (2006.01);
U.S. Cl.
CPC ...
H02M 1/0045 (2021.05); H02M 1/126 (2013.01); H02M 3/158 (2013.01);
Abstract
In order to eliminate inconvenience that the voltage accuracy requirement for a power supply voltage of an ASIC cannot be satisfied because noise generated inside a substrate is superimposed on the power supply voltage, an LDO and an LC filter are added between a DC-DC converter and a power supply terminal of the ASIC to reduce the noise superimposed on the power supply voltage, the LDO is added to the subsequent stage of the DC-DC converter to reduce noise generated from the DC-DC converter, and further the LC filter is added to the subsequent stage of the LDO to reduce noise generated due to crosstalk or the like.