Power supply control device and switching power supply

A power supply control device includes a charge circuit charging a capacitor coupled to a second node with a full-wave rectified voltage input into a first node when activated, a first detection circuit detecting if the first node is less than a first voltage, a second detection circuit detecting if...

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Bibliographische Detailangaben
Hauptverfasser:	Inoue, Katsumi, Aoki, Kanji
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 CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	A power supply control device includes a charge circuit charging a capacitor coupled to a second node with a full-wave rectified voltage input into a first node when activated, a first detection circuit detecting if the first node is less than a first voltage, a second detection circuit detecting if the second node is less than a second voltage and if the second node is equal to or higher than a third voltage higher than the second voltage, a discharge circuit discharging an electric charge accumulated in the first node by activation, and a control circuit activating the charge circuit when the voltage of the first node is less than the first voltage, activates the discharge circuit when the second node is less than the second voltage, and deactivates the discharge circuit when the voltage of the second node is equal to or higher than the third voltage.