Comments on Transient analysis of stored charge in neutral base region [with reply]

The commenter addresses questions raised in the above-titled paper by K. Suzuki et al. (ibid., vol.39, p.1164-9, May 1992) concerning the validity of bipolar transistor models using the partitioned-charge (PC) approach for transient simulations. Suzuki et al. assert that the concept of charge partitioning applies only to discharge transients and thus the charge-partition ratio depends on the sign of the emitter-base voltage gradient, which, if true, would greatly reduce the utility of PC-based models. The commenter shows that this is not the case and that their conclusion is due only to a misinterpretation of the PC model. The authors reply.<>