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. 31, 2011
Filed:
Feb. 07, 2008
Shinya Udo, Kawasaki, JP;
Shinya Udo, Kawasaki, JP;
Fujitsu Semiconductor Limited, Yokohama, JP;
Abstract
A plurality of DC-DC converters are cascade-connected via a plurality of control signal lines which are used in common for start sequence control and stop sequence control. Each of the plurality of DC-DC converters is constituted including a sequence control circuit which commences a start operation along with activation of a control signal line on a previous stage side and activates a control signal line on a subsequent stage side along with completion of the start operation, and commences a stop operation along with deactivation of the control signal line on the subsequent stage side and deactivates the control signal line on the previous stage side along with completion of the stop operation.