Control device for switching power supply and switching power supply

The invention provides a control device for a switching power supply and the switching power supply. The invention discloses a control device for a switching power supply. The control device comprises a secondary controller; the secondary side controller comprises a first end, a second end and an ou...

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Bibliographische Detailangaben
Hauptverfasser:	SHENG LIN, ZENG XIANGCAI, GAO KENING, DONG WEI
Format:	Patent
Sprache:	chi ; 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:	The invention provides a control device for a switching power supply and the switching power supply. The invention discloses a control device for a switching power supply. The control device comprises a secondary controller; the secondary side controller comprises a first end, a second end and an output end; the first end and the second end of the secondary side controller are respectively used for being connected to the first end and the second end of a secondary side winding of a transformer of the switching power supply so as to obtain a first voltage between the first end and the second end of the secondary side winding; the output end of the secondary side controller is used for outputting a switching signal; the switching signal comprises a turn-on signal and a turn-off signal, the turn-on signal is used for turning on a primary side switching tube arranged on the primary side of the transformer, and the turn-off signal is used for turning off the primary side switching tube; and the secondary side cont