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:
Jun. 25, 2019
Filed:
Aug. 23, 2017
Rohm Co., Ltd., Ukyo-ku, Kyoto-shi, Kyoto, JP;
Akihiro Ono, Kyoto, JP;
ROHM CO., LTD., Kyoto, JP;
Abstract
A PD device comprises: a DC/DC converter disposed between an input and a VBUS output; a primary-side controller configured to control an input current of the DC/DC converter; a signal conversion and switching circuit coupled to a control input and configured to executes signal conversion and switching; an output capacitor Cconnected between the VBUS output and the signal conversion and switching circuit; and a secondary-side controller coupled to the signal conversion and switching circuit, and configured to receive the control input signals subjected to the signal conversion and switching executed in the signal conversion and switching circuit, and to feed back the control input signals to the primary-side controller. The primary-side controller varies an output voltage value and an available output current value (MAX value) of the DC/DC converter by controlling the input current on the basis of the control input signals fed back from the secondary-side controller.