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:
Oct. 23, 2018
Filed:
Feb. 26, 2018
Tdk Corporation, Tokyo, JP;
Ken Matsuura, Tokyo, JP;
Min Lin, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
A switching power supply device generates a DC output voltage based on a DC input voltage, and includes n converter units and a control unit. The control unit executes first driving control that drives k1 (where 0≤k1<n) out of the n converter units when the DC output voltage has risen to an upper limit value of the reference voltage range and second driving control that drives k2 (where k1<k2≤n) out of the n converter units when the DC output voltage has fallen to a lower limit value of the reference voltage range. During the first driving control, if the DC output voltage Vo reaches a first value above the upper limit value, k1 and k2 are decreased by a value k0. During the second driving control, if the DC output voltage Vo reaches a second value below the lower limit value, k1 and k2 are increased by the value k0.