Switched capacitor power stage and switched capacitor transformer

• Main Authors: LIANG JINXIANG, CHEN KEHONG, ZHANG KAIXUN, LIN SHUYONG
• Format: Patent
• Language: Chinese; English
• Published: 28.04.2023
• 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

The invention relates to a switched capacitor power stage and a switched capacitor transformer. The switched capacitor power stage comprises a first sub-power stage. The first sub-power stage includes a first inductor, a first high switch, a first low switch, and a first set of switched capacitor networks. The first inductor is coupled to an input end. The first high switch is coupled between the first inductor and an output end. The first low switch is coupled between the first inductor and a first transition node. The first set of switched capacitor networks is coupled between the first transition node and the output terminal. Therefore, the switching loss, the conduction loss and the ripple are small, the voltage conversion rate is large, and the efficiency is good. 一种切换电容功率级以及切换电容变压器，切换电容功率级包含一第一子功率级。第一子功率级包含一第一电感、一第一高开关、一第一低开关以及一第一组切换电容网络。第一电感耦接一输入端。第一高开关耦接于第一电感与一输出端之间。第一低开关耦接于第一电感与一第一过渡节点之间。第一组切换电容网络耦接于第一过渡节点与输出端之间。据此，切换损失、导通损失以及涟波皆较小，电压转换率较大，且效率较佳。