Analog controller ic design for single-stage photovoltaic inverters

In this paper, the analog controller integrated circuit (IC) design is implemented for single-stage photovoltaic (PV) inverters. This research employed IC design technology to implement the controller for the proposed PV inverter. And then, the IC and system models are integrated into a PV energy conversion system in order to verify the total system performance. The key circuits of analog controller IC are operational amplifier, voltage-controlled oscillator, and hysteresis comparator. The controller IC has been fabricated with TSMC 0.35um 2P4M mixed-signal CMOS process through the support of Chip Implementation Center. Computer simulations and experimental results demonstrate the accuracy and the superior performance of the proposed technique.