The invention discloses a DC-DC converter for a vehicle, a power assembly and the vehicle. The DC-DC converter comprises a full-bridge conversion circuit and an isolation conversion circuit, the full-bridge conversion circuit is configured to convert input first voltage into second voltage, the second voltage is larger than the first voltage, and the second voltage is used for supplying power to an engine controller and a driving motor controller of a vehicle; the isolation conversion circuit is connected with the full-bridge conversion circuit, the full-bridge conversion circuit is further configured to convert the input first voltage into third voltage with the isolation conversion circuit, the third voltage is smaller than the first voltage, and the third voltage is used for supplying power to a storage battery of the vehicle. According to the DC-DC converter, the same full-bridge conversion circuit for boosting and supplying power to the vehicle engine controller and the driving motor controller is multiplexed to carry out voltage reduction operation, so that components of a boosting direct-current converter and a voltage reduction direct-current converter are reduced, the circuit structure is simplified, and the space occupied by the direct-current converter is reduced.
本申请公开了一种用于车辆的DC‑DC变换器、动力总成和车辆。本申请的DC‑DC变换器包括全桥转换电路和隔离转换电路,全桥转换电路,全桥转换电路配置为将输入的第一电压转换为第二电压,第二电压大于第一电压,第二电压用于对车辆的发动机控制器和驱动电机控制器供电;隔离转换电路连接全桥转换电路,全桥转换电路还配置为与隔离转换电路将输入的第一电压转换为第三电压,第三电压小于第一电压,第三电压用于对车辆的蓄电池供电。本申请的DC‑DC变换器通过复用同一个对车辆发动机控制器和驱动电机控制器升压供电的全桥转换电路进行降压操作,减少了升压直流变换器和降压直流变换器的元器件,简化了电路结构,减小了直流变换器占用的空间。
DC-DC converter, power assembly and vehicle
DC-DC变换器、动力总成和车辆
2025-04-11
Patent
Electronic Resource
Chinese
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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