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:
Feb. 13, 2018
Filed:
Jan. 25, 2017
Rohm Co., Ltd., Ukyo-Ku, Kyoto, JP;
Seiji Takenaka, Kyoto, JP;
ROHM CO., LTD., Kyoto, JP;
Abstract
An error amplifier amplifies a difference between a feedback signal Vthat corresponds to an output voltage Vof a DC/DC converter and its target value V, so as to generate an error signal V. A pulse width modulator for each channel is configured as a peak current mode modulator comprising a PWM comparator that compares a current detection signal Vwith the error signal V, and a logic circuit. When the number of enabled channels is switched, a soft shedding circuit selects at least one channel as a correction target channel. The soft shedding circuit generates a correction signal Vfor each correction target channel, and superimposes each correction signal Von at least one of two inputs of the corresponding PWM comparator.