| 摘要 |
本发明揭露一种直流双向电源转换系统及其电路，此直流双向电源转换系统包含一第一电路、一电容式切换电路及一变压器，第一电路包含二个电感及二个开关，电容式切换电路包含四个电容及四个开关，变压器系电性耦接此第一电路及电容式切换电路，当第一电路被施予一低电压时，此直流双向电源转换系统进入一升压模式以供给能量给电容式切换电路中之负载，而当电容式切换电路被施予一高电压时，此直流双向电源转换系统进入一降压模式供给能量给第一电路中之负载，此系统能储存能量于交错式电容上以提升电能转换效率并同时降低各开关所承受之跨压。;The invention discloses a bidirectional dc-dc converter system and circuit thereof. The bidirectional dc-dc converter system comprises a first circuit, a switched capacitor circuit, and a transformer. The first circuit comprises two inductors and two switches. The switched capacitor circuit comprises four capacitances and four switches. The transformer is electrically coupled with the first circuit and the switched capacitor circuit. When the first circuit is supplied with a low voltage, the bidirectional dc-dc converter system enters a boost mode to supply energy to a load of the switched capacitor circuit. On the other hand, when the switched capacitor circuit is supplied with the high voltage, the bidirectional dc-dc converter system enters a buck mode to supply energy to another load of the first circuit. The system can both store energy in the switched capacitors for increasing the voltage conversion ratio and reduce voltage stresses of active switches simultaneously. |
