THREE-PHASE OR SINGLE-PHASE ELECTRIC CHARGER SYSTEM FOR ELECTRIC VEHICLE OR HYBRID VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide a three-phase or single-phase electric charger system for electric vehicles or hybrid vehicles.SOLUTION: An electric system includes two DC-DC converter circuits. A first DC-DC converter circuit LLC1 has a high-voltage input terminal connected to a high-voltage output terminal of an AC-DC converter PFC, and a second DC-DC converter circuit has a low-voltage input terminal connected to a low-voltage output terminal of the AC-DC converter. A low-voltage input terminal of the first DC-DC converter circuit is connected to a high-voltage input terminal of the second DC-DC converter circuit, a high-voltage output terminal of the first converter circuit is connected to a high-voltage output terminal of the second DC-DC converter circuit, and a low-voltage output terminal of the first converter circuit is connected to a low-voltage output terminal of the second DC-DC converter circuit.SELECTED DRAWING: Figure 3