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A Behavior Model of an On-Chip High Voltage Generator for Fast, System-Level Simulation

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1 Author(s)
Toru Tanzawa ; Flash Design Center, Micron Japan Ltd., Tokyo, Japan

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.

Published in:

IEEE Transactions on Very Large Scale Integration (VLSI) Systems  (Volume:20 ,  Issue: 12 )