Vehicle-mounted power supply device

Provided is a vehicle-mounted power supply device detecting connection with an external power source and charging a power storage unit by stepping up a supply voltage based on the external power source. A vehicle-mounted power supply device includes an external terminal to which a power supply path...

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Bibliographische Detailangaben
Hauptverfasser:	Takahashi, Seiji, Itou, Takanori
Format:	Patent
Sprache:	eng
Schlagworte:	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 CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERATION MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS SYSTEMS FOR STORING ELECTRIC ENERGY TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Beschreibung
Zusammenfassung:	Provided is a vehicle-mounted power supply device detecting connection with an external power source and charging a power storage unit by stepping up a supply voltage based on the external power source. A vehicle-mounted power supply device includes an external terminal to which a power supply path from an external power source is connectable, a detection unit detects that the power supply path is connected to the external terminal, and a power supply circuit unit allows for flow of a current from the external terminal side toward the second conduction path side at least when the power supply path is connected to the external terminal. The control unit controls a step-down operation and a step-up operation of the voltage conversion unit, and causes the voltage conversion unit to perform the step-up operation when connection between the external terminal and the power supply path is detected by the detection unit.