Voltage conversion device for switching power supply, switching power supply and bearing control device

The invention provides a voltage conversion device for a switching power supply, the switching power supply and a bearing control device. The voltage conversion device for the switching power supply comprises a first conversion circuit used for converting an input voltage into a first target voltage...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SHEN ZHUORAN, ZHAO CONG, HE YONGLING
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 BEARINGS BLASTING CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERATION HEATING LIGHTING MECHANICAL ENGINEERING ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The invention provides a voltage conversion device for a switching power supply, the switching power supply and a bearing control device. The voltage conversion device for the switching power supply comprises a first conversion circuit used for converting an input voltage into a first target voltage and inputting the first target voltage to a second conversion circuit; the voltage range of the input voltage is a specified voltage range interval, and the first target voltage is smaller than the input voltage. The second conversion circuit is connected with the first conversion circuit; the second conversion circuit is used for converting the first target voltage into a second target voltage, and the second target voltage is used for supplying power to a load connected with the second conversion circuit. Wherein the second target voltage is larger than the minimum value in the specified input voltage interval and smaller than the maximum value in the specified input voltage interval. According to the invention,