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:
Apr. 26, 2016
Filed:
Nov. 01, 2013
Cypress Semiconductor Corporation, San Jose, CA (US);
Shinichiro Suga, Kasugai, JP;
Kenta Ido, Kasugai, JP;
Tomohiro Suzuki, Kasugai, JP;
Hiroaki Sumiya, Kasugai, JP;
Katsuyuki Yasukouchi, Kasugai, JP;
Takahiro Yoshino, Kasugai, JP;
Cypress Semiconductor Corporation, San Jose, CA (US);
Abstract
A power supply device that includes a switch circuit to which an input voltage is supplied, a coil coupled between the switch circuit and an output terminal from which an output voltage is outputted. A voltage adding circuit adds a slope voltage to a reference voltage. A control unit compares a feedback voltage corresponding to the output voltage and the reference voltage and switches the switch circuit at a timing corresponding to a comparison result of the feedback voltage and the reference voltage. A slope adjustment circuit differentiates a current flowing in the coil and adjusts a slope amount of the slope based on a differentiation result of the current.