Abstract |
In this paper, we propose a concept of Field Programmable Power supply Array (FPPA), which is a fully digital controlled power supply, based on power supply on chip technology. The proposed control strategy can regulate multiple output voltages by changing the number of working POLs with simple algorithm for multiple input voltages. It can also realize high efficiency over the wide load range. In addition, it enables boost and back at the same time. In feed forward mode, the proposed concept realized quick response. Moreover, in order to obtain a fast response to a sudden load change, it is necessary to increase the switching frequency. |