Fully Integrated Switched Capacitor Converters towards High-Density Capacitive Energy Storage

The tremendous trend toward mobile devices is undeniable, especially with the growing interest in IoT. All those devices require some energy storage. An integrated solution is preferred over a battery-fed system to lower the cost. This research aims for high-density integrated energy storage: starting from a small energy source, the voltage is converted to a high voltage to achieve high-density energy storage on an integrated capacitor. Afterward, this high voltage is down-converted to a usable voltage for the system. The down-conversion is the main focus of this research and could be drastically improved with the proposed Dynamic Voltage Domain Stacking system. Furthermore, several novel circuits and topologies for switched capacitor converters are proposed to facilitate this highly dynamic conversion system.