Title :
A Behavior Model of an On-Chip High Voltage Generator for Fast, System-Level Simulation
Author_Institution :
Flash Design Center, Micron Japan, Ltd., Tokyo, Japan
Abstract :
This brief discusses modeling of a high-voltage generator, including a charge pump circuit and a regulator for accelerating system-level simulations. Event-driven simulators become slow when hard switching frequently occurs to enable charge pump circuits even with a conventional model. A current mirror is added to the pump model and is connected to an output node of a comparator in the voltage detector to make every node in the feedback loop fully analog. Simulation results show that the simulation time for voltage generators´ system is reduced by a factor of about 10 with an error of 5% in comparison with the conventional model.
Keywords :
charge pump circuits; circuit feedback; circuit simulation; comparators (circuits); current mirrors; integrated circuit modelling; behavior model; charge pump circuit; comparator; current mirror; event-driven simulator; feedback loop; hard switching; high-voltage generator modeling; on-chip high voltage generator; pump model; regulator; system-level simulation; voltage detector; Charge pumps; Generators; Integrated circuit modeling; Load modeling; Regulators; System-on-a-chip; Voltage control; Behavior model; charge pump; high-voltage generator; regulator; system simulation;
Journal_Title :
Very Large Scale Integration (VLSI) Systems, IEEE Transactions on
DOI :
10.1109/TVLSI.2011.2176762
