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:
Aug. 25, 2020

Filed:

Dec. 26, 2018
Applicant:

Rohm Co., Ltd., Kyoto, JP;

Inventors:

Yoshinori Sato, Kyoto, JP;

Satoru Nate, Kyoto, JP;

Yuta Shiroishi, Kyoto, JP;

Assignee:

Rohm Co., Ltd., Kyoto, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/08 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33523 (2013.01); H02M 1/08 (2013.01); H02M 2001/0025 (2013.01); H02M 2001/0032 (2013.01);
Abstract

A power control device that acts as a principal controlling agent in an isolating switching power supply has a controller configured to monitor a first output detection signal commensurate with a direct-current output voltage to a load and a second output detection signal commensurate with the difference between the direct-current output voltage and its target value switch among a plurality of operating modes with varying power consumption according to the results of monitoring of the two output detection signals. The power control device may instead have a peak current switch configured to raise the peak current value of a primary current passing in an output switch on detecting a light load.


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