Power supply system and method for controlling output voltage

A power supply system including an external power supply unit generating direct-current output voltage and an electronic device connected to the external power supply unit and operable on the output voltage of the external power supply unit. The external power supply unit includes a voltage control...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Kokubun, Masatoshi, Matsumoto, Takashi
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A power supply system including an external power supply unit generating direct-current output voltage and an electronic device connected to the external power supply unit and operable on the output voltage of the external power supply unit. The external power supply unit includes a voltage control circuit receiving control current and controlling the output voltage of the external power supply unit in accordance with the control current. The voltage control circuit controls the output voltage of the external power supply unit to be equal to the minimum voltage possible for the external power supply unit to generate when the control current is minimum.