STATIONARY VEHICLE BATTERY CHARGER MODULATION STRATEGY

A stationary vehicle battery charger includes a plurality of power modules and a plurality of charging plugs. Two or more of the modules are included in a synchronization block for the purpose of supplying electrical charging current to a single charging plug. One module in the block is defined as a primary module with remaining modules being secondary modules. The respective outputs of the primary and secondary modules are synchronized using a synchronization signal, which is generated by each module and can include associated output signal timing/phase information. The synchronization signals are exchanged over a bidirectional data bus. Each module is configured to regulate the phase (e.g., by phase offset) of its own output signal so that collectively, the summed output of the synchronized modules exhibits a reduced charging current ripple relative to the output of a single module, without the need for an external inductor-capacitor circuit.