The invention relates to the technical field of new energy automobile charging, and provides a new energy automobile charging circuit and a new energy automobile, and the new energy automobile charging circuit comprises a filtering rectification circuit, a charging protection circuit, a step-down transformer, a high-frequency rectification circuit, a charging monitoring circuit and a charging plug. The charging protection circuit comprises a starting circuit, a charging protection chip, a transistor and an overcurrent protection circuit, a first output end of a filtering and rectifying circuit is connected with a drain electrode of the transistor through a primary coil, and a second output end of the filtering and rectifying circuit is connected with the charging protection chip through the starting circuit; the output end of the first secondary coil is connected with a charging plug through a high-frequency rectifying circuit; the acquisition end of the charging protection chip is connected with the source electrode of the transistor through the overcurrent protection circuit, and the driving end of the charging protection chip is connected with the grid electrode of the transistor; continuous overcurrent of the charging circuit can be effectively avoided, overcurrent fault expansion is avoided, and then the charging circuit and the new energy automobile are effectively protected.
本发明涉及新能源汽车的充电技术领域,并提供一种新能源汽车的充电电路及新能源汽车,包括滤波整流电路、充电保护电路、降压变压器、高频整流电路、充电监测电路和充电插头,所述充电保护电路包括启动电路、充电保护芯片、晶体管和过流保护电路,滤波整流电路的第一输出端通过初级线圈与晶体管的漏极连接,滤波整流电路的第二输出端经所述启动电路与所述充电保护芯片连接;第一次级线圈的输出端经高频整流电路连接充电插头;充电保护芯片的采集端通过过流保护电路与晶体管的源极连接,充电保护芯片的驱动端与晶体管的栅极连接;本发明可以有效的避免充电电路持续过电流,避免过流故障扩大,进而有效保护充电电路以及新能源汽车。
Charging circuit of new energy automobile and new energy automobile
一种新能源汽车的充电电路及新能源汽车
2023-05-19
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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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