Stabilization methods for integrated high voltage charge pumps

Charge pump circuits are currently becoming a realistic alternative to the switching regulators in high voltage generation applications, especially in fully integrated circuit systems. This paper discusses several stabilization methods to improve voltage performance and robustness of integrated high voltage charge pumps. All the discussion and measurements are based on a monolithic integrated high voltage charge pump chip adopting an innovative circuit architecture and advanced clock scheme to overcome drawbacks of conventional charge pump circuit architectures. The possibility to integrate the stabilizing parts into the entire circuit system is also analyzed.