Flyback converter with fixed conduction time, and control method thereof

The invention discloses a flyback converter with fixed conduction time, and a control method thereof, and belongs to the technical field of conversion circuits. When the flyback converter is in a switch conduction stage, a primary side controller on the primary side of the transformer is adopted to...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	YU YUEPING, XU HONGDA, ZHANG XIANGZHONG, CHEN YOUMIN, ZHENG RONGPEI
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention discloses a flyback converter with fixed conduction time, and a control method thereof, and belongs to the technical field of conversion circuits. When the flyback converter is in a switch conduction stage, a primary side controller on the primary side of the transformer is adopted to perform corresponding processing to obtain a second control signal according to the grid voltage of the grid switch and the input voltage of the flyback converter, and the grid switch is controlled to be switched off through the second control signal, so the flyback converter enters a switch off stage; and when the flyback converter is in a switch-off stage, a secondary side controller on the secondary side of the transformer sends a first control signal to the primary side controller according to the output voltage and the output current of the secondary side, so that the grid switch is controlled to be switched on, and the flyback converter enters a switch-on stage. The technical scheme has the beneficial effects