The embodiment of the invention provides an isolated DC/DC converter, a charging pile and a charging pile output control method. The isolated DC/DC converter comprises a controller, a transformer, a primary side circuit and a secondary side circuit, the output end of the primary side circuit is connected with a primary side winding of the transformer, a secondary side winding of the transformer is connected with the input end of the secondary side circuit, the input end of the primary side circuit serves as the direct current input end of the isolated DC/DC converter, and the output end of the secondary side circuit serves as the direct current output end of the isolated DC/DC converter. And the turn ratio of primary and secondary windings of the transformer is adjustable and is controlled by the controller. According to the invention, wide-range voltage output can be realized, and the influence of relay faults and series-parallel connection of the LLC resonant circuit on the charging pile is avoided.
本发明实施例提供了一种隔离型DC/DC变换器、充电桩及充电桩输出控制方法。其中,该隔离型DC/DC变换器,包括:控制器、变压器、原边电路和副边电路;原边电路的输出端连接变压器的原边绕组,变压器的副边绕组连接副边电路的输入端,原边电路的输入端作为隔离型DC/DC变换器的直流输入端,副边电路的输出端作为隔离型DC/DC变换器的直流输出端;变压器的原副边绕组匝数比可调且受控于控制器。本发明可以实现宽范围电压输出,避免继电器故障以及LLC谐振电路串并联给充电桩带来的影响。
Isolated DC/DC converter, charging pile and charging pile output control method
隔离型DC/DC变换器、充电桩及充电桩输出控制方法
2023-08-25
Patent
Electronic Resource
Chinese
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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