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该论文提出了一种123相环形开关电容DC-DC转换器，具有快速动态电压缩放（DVS）功能，专为微处理器设计。通过对称环形结构围绕负载供电，解决了便携式设备中高效、多相集成电源转换的问题。
Sai-Weng Sin2, Seng-Pan U2,3, R. P. Martins2,4 Hong Kong University of Science and Technology, Hong Kong, China, University of Macau, Macao, China, 3Synopsys, Macao, China, 4 Instituto Superior Tecnico, Universidade de Lisboa, Portugal 1 2 Inspired by The Square of Vatican City, a fully integrated step-down switchedcapacitor DC-DC converter ring with 100+ phases is designed with a fast dynamic voltage scaling (DVS) feature for the microprocessor in portable or wearable devices. As shown in Fig. 20.4.1, this symmetrical ring-shaped converter surrounds its load in the square and supplies the on-chip power grid, such that a good quality power supply can be easily accessed at any point of the chip edges. There are 30 phases on the top edge and 31 phases on each of the other 3 edges, making 123 phases in total. The phase number and unit cell dimensions of this architecture can easily be adjusted to fit the floor plan of the
Yan Lu1,2, Junmin Jiang1, Wing-Hung Ki1, C. Patrick Yue1,