POWER SUPPLY DEVICE

PURPOSE:To hold voltage impressed to both the ends of a load at a fixed level at the time of parallel operation and to suppress the drop of the voltage at the time of interrupting an output from a power supply body. CONSTITUTION:Voltage Vo impressed to both the ends of the load 3 is detected by a vo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BANBA SHIGEKI, ISA MASAAKI
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:PURPOSE:To hold voltage impressed to both the ends of a load at a fixed level at the time of parallel operation and to suppress the drop of the voltage at the time of interrupting an output from a power supply body. CONSTITUTION:Voltage Vo impressed to both the ends of the load 3 is detected by a voltage detecting circuit 6. Variable command voltage Vr is impressed from a voltage correcting circuit 8 to the power supply body 1 based upon the detected result. When the voltage Vo is dropped, the voltage Vr matched with the drop of the voltage Vo is superposed to the reference voltage of a 1st error amplifier 13. Thereby the body 1 having low output voltage V1 is waited in a no-load state. Even when another power supply body stops operating, the dropped level of the ouput voltage V1 is immediately compensated. Consequently the voltage Vo of the load 3 can be stabilized.