EV charging infrastructure has been listed as one of the main industries in most countries worldwide as the urgent need of transition to decarbonization and sustainable development. Building of EV charging network may speed up under the main line of stable growth. In residential communities and commercial centers, there must be certain proportion of EV charging points in the parks. Improve EV charging infrastructure is conducive to relieving the consumers of anxiety about their trips with electric cars and boosting of EV sales.

There are two main EV chargers on the market: DC chargers and AC chargers. DC EV charging poles is also called as “fast chargers”, have three features such as high power rate, fast charging and expensiveness. With input voltage is 3 phase 4 wires 380V±15%, the DC charging post ‘s power rate is usually above 60kW, and can charge the electric cars directly with the charging port, which is different from AC chargers. The input voltage and current of DV chargers can be adjusted in a wide range, therefore the charging time varies from 20 to 150 minutes, comparing to AC chargers, its cost is usually a few times higher.

AC charger has small power rate, slow charging speed and low cost, it could not charge the EV ‘s batteries directly. AC charging post only provides electricity output but without charging function, it requires a portable EV charger to charge the cars, the power rate is 7-15kW in general.

In EV charger industry, there are numerous manufacturers which are racing to enlarge sales with fierce competition. In the upper supply chain are suppliers who offer various components and modules such as charging modules (IGBT, inverter, transformer and rectifier etc.), power distribution filter device, monitoring and metering device, battery maintenance device (breaker, fuse), as well as other components like contact, connector, kwh meter, LCD screen, housing, plug &socket, cable, charging head and so on, which as a whole occupy over 90% of total costs.

As to say the core component, of course it ‘s the charging motherboard. The EV charger control board can be custom with electricity leakage protection, LED, 4G, Bluetooth, card swiping and APP platform. So far 3.2kW and 7kW EV AC chargers are popular on the market, small and portable EV chargers suitable for individuals. Whilst DC charger poles fit for EV charging network business runners, for specific electric cars.

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