A charging circuit includes at least two sets of DC/DC converters coupled to each other, at least one set of relay switches and at least one diode, wherein the at least one set of relay switches is used for connecting the at least two sets of DC/DC converters in series when a first voltage is within a first threshold range, the first voltage is a charging voltage of an electric vehicle,and the relay switch is also used for enabling the at least two groups of DC/DC converters to be connected in parallel under the condition that the first voltage is within a second threshold range; the diode is used for preventing current of a storage battery in the electric vehicle from flowing backwards. According to the embodiment of the invention, the size of the charging device can be reduced.
一种充电电路,包括相互耦合的至少两组DC/DC变换器、至少一组继电器开关以及至少一个二极管,其中:所述继电器开关,用于在第一电压处于第一阈值范围内的情况下,使所述至少两组DC/DC变换器串联连接,所述第一电压为电动车辆的充电电压;所述继电器开关,还用于在所述第一电压处于第二阈值范围内的情况下,使所述至少两组DC/DC变换器并联连接;所述二极管,用于防止所述电动车辆中蓄电池的电流倒灌。本申请实施例,可以减小充电装置的体积。
Charging circuit and charging device
一种充电电路及充电装置
2021-12-24
Patent
Electronic Resource
Chinese
Charging circuit, vehicle, charging system, charging method, electronic device, and medium
European Patent Office | 2024
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