The invention provides an auxiliary power supply, a power supply system and a vehicle-mounted inverter. The auxiliary power supply comprises a plurality of auxiliary power supply subunits; the input power supply is respectively connected with the plurality of auxiliary power supply subunits through the conversion circuit, the conversion circuit is used for converting an input voltage of the input power supply into a fixed voltage and respectively inputting the fixed voltage into the auxiliary power supply subunits, and the auxiliary power supply subunits are respectively connected with module drivers in the inverter in a one-to-one correspondence manner; the auxiliary power supply subunit comprises a primary side circuit, a transformer and a secondary side circuit, the primary side circuit is connected with the conversion circuit, the transformer is connected with the primary side circuit and the secondary side circuit, and the secondary side circuit is in driving connection with a module of the inverter; the transformers in the plurality of auxiliary power supply subunits are sequentially arranged and integrated to form a transformer module. According to the configuration, the cost and the occupied board area can be synchronously optimized on the basis of keeping the characteristics of nearby layout and flexible wiring of the auxiliary power supply circuit and the driving circuit.
本发明提供一种辅助电源、供电系统以及车载逆变器,辅助电源包括:多个辅助电源子单元;输入电源通过转换电路分别与多个辅助电源子单元连接,转换电路用于将输入电源的输入电压转换为一固定电压,并将固定电压分别输入辅助电源子单元中,辅助电源子单元分别与逆变器中的模块驱动一一对应地连接;辅助电源子单元包括原边电路、变压器和副边电路,原边电路与转换电路连接,变压器连接原边电路和副边电路,副边电路与逆变器的模块驱动连接;多个辅助电源子单元中的变压器依次排布并集成设置为变压器模块。如此配置,能够在保留辅助电源电路与驱动电路就近布局、走线灵活的特点的基础上,同步优化成本和占板面积。
Auxiliary power supply, power supply system, and vehicle-mounted inverter
辅助电源、供电系统以及车载逆变器
2024-11-26
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H01F MAGNETS , Magnete / 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 |
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