Multi-Supply voltage design using Cluster Voltage Scaling (CVS) is an effective way to reduce power consumption without performance degradation. One of the major issues in this method is performance and power overheads due to insertion of Level Converting Flip-Flops (LCFF) at the interface from low-supply to high-supply clusters to simultaneously perform latching and level conversion. In this p...

This paper presents a new structure to provide the ability for power sharing of two Z-source inverters. According to the operation principles of Z-source inverters, only one input source supplies the circuit, which is a limitation particularly for the stand alone systems feeded by limited output power such as photovoltaics and feul cells. Furthermore; if one source fails to supply,  the lo...

The growth of local renewable energy sources and heavy loads in power distribution networks, such as the increasing electric vehicles charging stations, causes several issues with a direct impact on stability electrical grid. An attempt to overcome is microgrid concept, which has grid structured into sub-grids that manage their balancing. A may operate connected or disconnected from main grid, ...

Abstract In the transition to democracy some autocracies transformed republics while others evolved constitutional monarchies. The paper inquires how monarchy is established. It models a hereditary king and liberal challenger who coexist over succession of periods fight for power which brings office rents right decide one’s preferred policy. outcome confrontation uncertain may vary from period ...