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:
May. 12, 2026
Filed:
Oct. 20, 2022
Torex Semiconductor Ltd., Tokyo, JP;
Kousuke Hayakawa, Tokyo, JP;
Torex Semiconductor Ltd., Tokyo, JP;
Abstract
A DC/DC converter has a coil connected to a connection point between a main switch and a subordinate switch connected in series; and alternately turns on/off the main switch and the subordinate switch, thereby converting a direct current input voltage into a predetermined direct current output voltage. The DC/DC converter includes a current mode detection unit for detecting either a continuous current mode in which a current flowing through the coil does not pass through a zero point, or a discontinuous current mode in which the current flowing through the coil passes through the zero point, when the subordinate switch is ON; and a subordinate switch control unit for controlling the ON time of the subordinate switch in a next or later cycle, based on a time from turning-off of the subordinate switch until a voltage at the connection point reaches a predetermined threshold value.