DESIGN AND OPTIMIZATION OF A HIGH POWER DENSITY LOW VOLTAGE DC-DC CONVERTER FOR ELECTRIC VEHICLES

• Main Authors: CHEN YANG, WEBB SAM, ZHOU XIANG, FOROUZESH MOJTABA, YUREK ANDREW, LIU YANFEI, LIU WENBO, SHENG BO, BAECK WOLFGANG, IYER LAKSHMI VARAHA, SCHLAGER GERD, NEUDOROFER MICHAEL
• Format: Patent
• Language: Chinese; English
• Published: 31.08.2021
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

An inductor-inductor-capacitor (EEC) power converter with high efficiency for Electric Vehicle (EV) on-board low voltage DC-DC chargers (LDC) is disclosed. The converter includes a switching bridge with a plurality of bridge switches and configured to generate an output from a direct current input voltage. An EEC tank circuit is coupled to the switching bridge and includes a resonant inductor and a resonant capacitor and a parallel inductor connected between the resonant inductor and the resonant capacitor. The tank circuit is configured to output a resonant sinusoidal current from the output of the switching bridge. At least one transformer has at least one primary winding in parallel with the parallel inductor of the inductor-inductor-capacitor tank circuit and at least one secondary winding. At least one rectifier is coupled to the at least one secondary winding and is configured to output a rectified alternating current. 公开了一种用于电动车辆(EV)车载低电压DC-DC充电器(LDC)的具有高效率的电感器-电感器-电容器(EEC)功率转换器。该转换器包括开关桥，该开关桥具有多个桥开关并且