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Home » Applications & Technologies » Automotive Application - HEV Battery Charger
Applications & Technologies

Automotive Application - HEV Battery Charger

EV and PHEV (Plug-in Hybrid Electrical Vehicle) systems push the envelope of vehicle electrification by allowing high voltage battery banks to recharge from the mains. A high voltage charger converts electrical power from AC to DC, and controls the power flow to the high voltage battery. Electronics on board the car transform the wall power into the proper form to charge the battery. The power levels for these chargers range from 3 to 10 kW, and therefore require a front-end PFC circuit. There are 3 levels of charging that are classified by peak power capacity. Level 1 charging enables charging from any standard electrical plug, which in the United States is 120V and limited in peak amperage draw (8 - 15 amps) by local circuit breakers. Level 1 chargers are portable converters that may be placed in the trunk for use anywhere a standard outlet can be found. Charging can take up to 22 hours for a fully depleted battery. At Level 1 charging, a user might be inclined to plug in every time a charger is available, with cumulative partial charges extending driving range on an ongoing basis.

This design is for reference only. The design, as well as the products suggested, has not been tested for compatibility or interoperability.