Electromobility: Charging Process
All electronic systems in an electric vehicle depend on the battery for power. But the car's battery is useless without a battery charger. To recharge the battery of an electric car, a charger is needed. In cars with on-board chargers the batteries can be recharged by plugging them into a standard power outlet at home. Battery charging precess via the power grid requires a flexible switching structure in order to handle the different voltage levels and current intensities existing in different countries. Because charging time is a very important factor for most motorists, on-board chargers have to be very efficient so that they are as small and light as possible. A long-term trend is towards bi-directional charger functions for not only drawing current from the grid but feeding excess energy back into it.
Infineon’s comprehensive portfolio of semiconductors (sensors, microcontrollers, power semiconductors, power modules, etc.) lends itself perfectly to compact charging units. The products also function at high switching frequencies for use in small and light charger designs. Infineon’s products in this sector include the flexible Easy 1B/2B power modules for overnight low-amp charging, HybridPACK™1 for a fast charging process with high amps and high-performance 16- and 32-bit microcontroller solutions.