The embodiment of the invention discloses a three-port DCDC circuit, electronic equipment and an automobile system. The three-port DCDC circuit comprises a DCDC converter and a magnetic integrated common mode inductor. One end of the first winding is connected with the input end of the DCDC converter, and the other end of the first winding is connected with the input anode of the power supply; one end of the second winding is connected with the first output end of the DCDC converter, and the other end of the second winding is connected with the output anode of the load; one end of the third winding is connected with the second output end of the DCDC converter, and the other end of the third winding is grounded. When the DC-DC converter works, the sum of the input positive electrode current flowing through the first winding, the output positive electrode current flowing through the second winding and the negative electrode current flowing through the third winding is zero, common-mode electromagnetic interference of all ports of the DC-DC converter to the outside is restrained, and electromagnetic compatibility is restrained under the conditions of small space and low cost.
本发明实施方式公开了一种三端口DCDC电路、电子设备、汽车系统,三端口DCDC电路包括DCDC转换器和磁集成共模电感。第一绕组的一端与DCDC转换器的输入端连接,另一端与供电电源的输入正极连接;第二绕组的一端与DCDC转换器的第一输出端连接,另一端与负载的输出正极连接;第三绕组的一端与DCDC转换器的第二输出端连接,另一端接地。工作时,流经第一绕组的输入正极电流、流经第二绕组的输出正极电流与流经第三绕组的负极电流的和为0,抑制DCDC转换器各端口对外的共模电磁干扰,实现了在利用较小空间和较低成本的条件下抑制电磁兼容。
Three-port DCDC circuit, electronic equipment and automobile system
三端口DCDC电路、电子设备、汽车系统
31.05.2024
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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
Control strategy after DCDC fault of electric automobile and electric automobile
Europäisches Patentamt | 2024
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