POWER SUPPLY ADAPTER

PROBLEM TO BE SOLVED: To detect a non-load state and to make the loss extremely small. SOLUTION: An AC1 switch circuit SW1 and a capacitor becoming high impedance are installed on the primary side of a transformer 12 in parallel. The AC12 switch circuit SW1 is controlled by a control circuit 16. One...

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Bibliographische Detailangaben
1. Verfasser:	NAGAI TAMIJI
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 ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To detect a non-load state and to make the loss extremely small. SOLUTION: An AC1 switch circuit SW1 and a capacitor becoming high impedance are installed on the primary side of a transformer 12 in parallel. The AC12 switch circuit SW1 is controlled by a control circuit 16. One secondary side of the transformer 12 is connected to the anode of a diode 13 and a capacitor 14 is inserted between the cathode of the diode 13 and the other secondary side of the transformer 12. An AC2 switching circuit SW2 is inserted between the cathode of the diode 13 and a terminal T3. A load detection circuit 15 is connected to both ends of an AC2 switching circuit SW2. The load detection circuit 15 supplies a signal to the control circuit 16 for controlling the AC1 switching circuit SW1 and controls the AC2 switching circuit SW2. The control circuit 16 controls the on/off operation of the AC1 switching circuit SW1, in accordance with the supplied signal.