USB APPARATUS

• Main Author: TAKAMATSU SEIJI
• Format: Patent
• Language: English; Japanese
• Published: 21.12.2017
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CALCULATING; COMPUTING; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; GENERATION; PHYSICS

PROBLEM TO BE SOLVED: To provide a technology to make available a power exceeding the limit of a USB standard with a simple configuration.SOLUTION: A USB apparatus comprises: a USB connection port; a measuring circuit that measures a current value of a current supplied from a VBUS terminal of the USB connection port; and a booster circuit that is connected to the measuring circuit and increases the voltage of the current supplied from the VBUS terminal via the measuring circuit at a duty ratio according to the current value measured by the measuring circuit.SELECTED DRAWING: Figure 2 【課題】簡易な構成によってＵＳＢ規格の制限を超えた電力を利用可能にする技術の提供。【解決手段】ＵＳＢ接続口と、前記ＵＳＢ接続口と接続し、前記ＵＳＢ接続口のＶＢＵＳ端子から供給される電流の電流値を計測する計測回路と、前記計測回路と接続し、前記ＶＢＵＳ端子から前記計測回路を介して供給される電流の電圧を、前記計測回路が計測した電流値に応じたデューティ比で上昇させる昇圧回路と、を備えたＵＳＢ機器を構成する。【選択図】図２