The invention discloses a bidirectional charging and DCDC integrated circuit structure, which comprises a two-stage EMI filtering input module, a bridgeless totem-pole PFC module, an LLC module, a phase-shifted full-bridge DCDC module and a two-stage EMI filtering output module, and is characterized in that alternating current is connected with the input end of the bridgeless totem-pole PFC module through the two-stage EMI filtering input module; the output end of the bridgeless totem pole PFC module is connected with a first winding of a magnetic integrated main transformer in the LLC module, the output end of the LLC module is connected with the large battery pack through the two-stage EMI filter output module, and a second winding and a third winding of the magnetic integrated main transformer in the LLC module are connected with the phase-shifted full-bridge DCDC module; the LLC module is a double-pole single-throw LLC module, and a resonant inductance coil and a resonant capacitor are adjusted through a double-pole single-throw switch, so that the gain range is adjusted, and the resonant frequency is maintained. The invention also discloses a control method of the bidirectional charging and DCDC integrated circuit structure.
本发明公开了一种双向充电和DCDC融合的电路结构,包括两级EMI滤波输入模块、无桥图腾柱PFC模块、LLC模块、移相全桥DCDC模块以及两级EMI滤波输出模块,交流电通过两级EMI滤波输入模块与无桥图腾柱PFC模块的输入端连接,无桥图腾柱PFC模块的输出端与LLC模块中的磁集成主变压器的第一绕组连接,LLC模块的输出端通过两级EMI滤波输出模块与大电池包连接,LLC模块中的磁集成主变压器的第二、第三绕组与移相全桥DCDC模块连接;LLC模块为双刀单掷LLC模块,其通过双刀单掷开关调节谐振电感线圈和谐振电容,以调节增益范围和维持谐振频率。还公开了一种双向充电和DCDC融合的电路结构的控制方法。
Bidirectional charging and DCDC fused circuit structure and control method thereof
一种双向充电和DCDC融合的电路结构及其控制方法
2024-02-13
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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