Switch power supply used for electromagnetic induction heating equipment

The utility model relates to a switch power supply used for electromagnetic induction heating equipment. The switch power supply comprises a high-voltage direct-current source filter circuit (1), a switch power supply output filter circuit (3) and a low-voltage power supply conversion circuit (4). T...

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Bibliographische Detailangaben
Hauptverfasser:	WEI ZAIPING, HONG YAOZHI
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 utility model relates to a switch power supply used for electromagnetic induction heating equipment. The switch power supply comprises a high-voltage direct-current source filter circuit (1), a switch power supply output filter circuit (3) and a low-voltage power supply conversion circuit (4). The switch power supply is characterized in that the switch power supply also comprises a BUCK circuit (2); an output terminal of the high-voltage direct-current source filter circuit (1) is connected with an input terminal of the BUCK circuit (2); the output terminal of the BUCK circuit (2) is connected with the input terminal of the switch power supply output filter circuit (3); the output terminal of the switch power supply output filter circuit (3) is connected with the input terminal of the low-voltage power supply conversion circuit (4). According to the switch power supply of the utility model, the BUCK circuit is used to realize a voltage reduction function; a voltage impact to a high-voltage MOSFET is small