SEMICONDUCTOR DEVICE AND POWER FEEDING SYSTEM

PROBLEM TO BE SOLVED: To provide a semiconductor device capable of performing appropriate operation in accordance with a state of a power supply circuit.SOLUTION: A semiconductor device includes: a power supply circuit configured to generate an output voltage to be fed to a USB device connected to a...

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1. Verfasser:	ENDO TAKEFUMI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CALCULATING CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER COMPUTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER COUNTING ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION PHYSICS SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a semiconductor device capable of performing appropriate operation in accordance with a state of a power supply circuit.SOLUTION: A semiconductor device includes: a power supply circuit configured to generate an output voltage to be fed to a USB device connected to a USB connector; a detection circuit configured to detect the output voltage or an output state of the power supply circuit; a control circuit for controlling the power supply circuit; and registers for storing preset output voltage values of or various information on the power supply circuit. The control circuit outputs a notification signal based on a detection result of the detection circuit to outside.SELECTED DRAWING: Figure 2 【課題】電源回路の状態に応じた適切な動作を実行することが可能な半導体装置を提供する。【解決手段】半導体装置は、ＵＳＢコネクタと接続されるＵＳＢデバイスに供給する出力電圧を生成する電源回路と、電源回路の出力電圧あるいは出力状態を検知する検知回路と、電源回路を制御する制御回路と、電源回路に関する出力設定電圧値あるいは各種情報を格納するレジスタとを備える。制御回路は、検知回路の検知結果に基づく通知信号を外部に出力する。【選択図】図２