An EV charger is a equipment to keep the battery full for both electric vehicles and plug-in hybrid electric vehicles. Just like any other charging device, EV Chargers help charge batteries of electric vehicles. In simple terms, when your mobile phone or laptop runs ut of battery, you search for a socket and plug-in a charger (adapter) connecting your mobile phone/laptop with the socket. The charger(adapter) converts & conditions electric power (mostly alternating) to DC power ( with required voltage) and charges the device. Types of EV Charger based on Output Current:
AC Chargers: The AC EV Chargers take input AC current & provide AC output current. The ac current output from these chargers goes into the input of onboard charge controller (OBC) of electric vehicle which converts this ac current to dc current and feeds it to the battery. The ac chargers offer utility in terms of smart operation & metering, data analytics, safety, earthing & other checks etc.
DC Chargers: The DC EV chargers take input of single or three phase AC current & provide output DC current. The output from these DC chargers bypasses the onboard charge controller and is directly fed into the battery. .