The invention discloses a new energy electric vehicle super capacitor charging device which comprises a main control chip. The main control chip is connected with a power supply bus through an input isolation switch circuit; the input isolation switch circuit is connected with an input voltage feedback circuit; the input voltage feedback circuit is connected with an input current detection circuit; and the input current detection circuit is connected with a bidirectional BUCK-BOOST converter. The bidirectional BUCK-BOOST converter is connected with an output current detection circuit; the output current detection circuit is connected with an output voltage feedback circuit; and the output voltage feedback circuit is connected with a super capacitor through an output isolation switch circuit. The input voltage feedback circuit, the input current detection circuit, the bidirectional BUCK-BOOST converter, the output current detection circuit, the output voltage detection circuit and the output isolation switch circuit are all connected with the main control chip. A super capacitor charging circuit with a buck-boost function is formed, power optimization is carried out on a charging scheme through internal digital logic, and the functions of simplifying the circuit and reducing the cost are achieved.
本发明公开了一种新能源电动汽车超级电容充电装置,其包括主控芯片,主控芯片通过输入隔离开关电路与电源母线连接,输入隔离开关电路与输入电压反馈电路连接,输入电压反馈电路与输入电流检测电路连接,输入电流检测电路与双向BUCK‑BOOST变换器连接;双向BUCK‑BOOST变换器与输出电流检测电路连接,输出电流检测电路与输出电压反馈电路连接,输出电压反馈电路通过输出隔离开关电路与超级电容连接;输入电压反馈电路、输入电流检测电路、双向BUCK‑BOOST变换器、输出电流检测电路、输出电压检测电路和输出隔离开关电路均与主控芯片连接。本发明构成了具有升降压功能的超级电容充电电路,通过内部数字逻辑对充电方案进行了功率优化,并起到了简化电路和降低成本的作用。
New energy electric vehicle super capacitor charging device
一种新能源电动汽车超级电容充电装置
2021-09-07
Patent
Elektronische Ressource
Chinesisch
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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