Voltage transformation circuit with wide voltage output range and DC charging pile
A technology of DC charging pile and output range, which is applied in the field of power transformation and distribution, and can solve problems such as the mismatch between the car and the charging pile
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[0023] The present application will be described in further detail below through specific embodiments in conjunction with the accompanying drawings.
[0024] The present application discloses a DC charging pile, whose output charging voltage range is very large, and can meet the charging voltage requirements of different types of vehicles, which will be described in detail below.
[0025] Please refer to figure 1 , In an embodiment, the DC charging pile includes two-stage converters: a first-stage converter 1 and a second-stage converter 2, and the first-stage converter 1 and the second-stage converter 2 are cascaded.
[0026] The first-stage converter 1 is used to convert the input alternating current into direct current, where the alternating current may be three-phase 220V or 380V alternating current. In a preferred embodiment, please refer to figure 2 , the first-stage converter 1 includes a power factor correction circuit 10, and the power factor correction circuit 10 ...
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