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. 25, 2021
Filed:
Jun. 07, 2016
Sony Interactive Entertainment Inc., Tokyo, JP;
Kazuki Sasao, Tokyo, JP;
Sony Interactive Entertainment Inc., Tokyo, JP;
Abstract
There is provided a DC/DC converter that can eliminate the necessity of current sense resistors to thereby reduce the mounting area, improve the efficiency, and realize favorable transient characteristics. A multi-phase DC/DC converter with N phases (N is an integer equal to or greater than 2) is provided. A high-side transistor MH, a low-side transistor ML, and an inductor L are provided for each phase φ. Output power supply wiring connects a load side end of each of N inductors Lto LN and a load. The output power supply wiring is branched from the load toward the load side ends of the N inductors Lto LN. A coil current flowing through an inductor Li of an ith phase φ(i=1, 2, . . . N) is detected based on a voltage drop Vsi of a branch portion bri corresponding to the phase φof the output power supply wiring.