Pre-charging circuit, DCDC power supply and charging equipment

The utility model discloses a pre-charging circuit, a DCDC power supply and charging equipment, and relates to the field of DCDC power supplies. The pre-charging circuit comprises a first input end, a second input end, a first output end, a second output end, a change-over switch, a blocking unit, a...

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Bibliographische Detailangaben
1. Verfasser:	YANG FENGFU
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 discloses a pre-charging circuit, a DCDC power supply and charging equipment, and relates to the field of DCDC power supplies. The pre-charging circuit comprises a first input end, a second input end, a first output end, a second output end, a change-over switch, a blocking unit, a pre-charging resistor and a charging unit, the first end of the blocking unit and the second end of the pre-charging resistor are respectively connected in parallel with the first end and the second end of the change-over switch; the first end and the second end of the change-over switch are electrically connected with the first input end and the first output end of the pre-charging circuit respectively; the first end of the charging unit is electrically connected with the second end of the change-over switch, and the second end of the charging unit is electrically connected with the second input end and the second output end of the pre-charging circuit. Therefore, the reliability and the safety of the DCDC power