THREE-LEVEL CONVERTING CIRCUIT, AND STARTING METHOD AND ELECTRONIC DEVICE THEREOF

Embodiments of the present invention relate to the technical field of power electronics, and disclose a three-level converting circuit, and a starting method and electronic device thereof. The circuit includes: a first voltage source (V1); a first soft-start circuit (110); a first capacitor (C1); a...

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Bibliographische Detailangaben
Hauptverfasser:	XIAO, Rong, YI, Degang, LIU, Peng
Format:	Patent
Sprache:	eng ; fre ; ger
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:	Embodiments of the present invention relate to the technical field of power electronics, and disclose a three-level converting circuit, and a starting method and electronic device thereof. The circuit includes: a first voltage source (V1); a first soft-start circuit (110); a first capacitor (C1); a first switch (S1), a second switch (S2), a third switch (S3), and a fourth switch (S4) sequentially connected in series; a flying capacitor (Cf); a second soft-start circuit (120); a second voltage source (V2) and a second capacitor (C2). The three-level converting circuit provided according to the embodiments of the present invention can pre-charge the flying capacitor (Cf), the first capacitor (C1), and the second capacitor (C2) when executing the starting method thereof, thereby preventing the over-voltage damage of the switches.