The invention discloses a vehicle-mounted charger which comprises a primary side conversion circuit, a first secondary side conversion circuit, a second secondary side conversion circuit and a transformer. The primary side conversion circuit is connected with a primary side winding of the transformer, the first secondary side conversion circuit is connected with a first secondary side winding of the transformer, and the second secondary side conversion circuit is connected with a second secondary side winding of the transformer; the first secondary winding is used for supplying power to a power battery, and the second secondary winding is used for supplying power to other loads except the power battery; and the second secondary side conversion circuit is a first full-bridge conversion circuit. The vehicle-mounted charger provided by the invention comprises the transformer and the two independent secondary windings, so that the cost is low; and the second secondary side conversion circuit is a full-bridge circuit to realize soft switching control, and has the advantages of small output voltage stress, high efficiency, low heat and the like.
本发明公开一种车载充电机,包括:原边转换电路、第一副边转换电路、第二副边转换电路和变压器;所述原边转换电路连接所述变压器的原边绕组,所述第一副边转换电路连接所述变压器的第一副边绕组,所述第二副边转换电路连接所述变压器的第二副边绕组;所述第一副边绕组用于为动力电池供电,所述第二副边绕组用于为所述动力电池以外的其他负载供电;所述第二副边转换电路为第一全桥转换电路。本申请提供的车载充电机包括一个变压器,而且两个独立的副边绕组,成本低;且第二副边转换电路为全桥电路实现软开关控制,输出电压应力小,效率高,发热低等优点。
Vehicle-mounted charger
一种车载充电机
20.05.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
Vehicle-mounted charger circuit, vehicle-mounted charger and electric vehicle
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