domingo, 30 de mayo de 2010



The charge control model of a bipolar transistor is an extension of the charge control model of a p-n diode. Assuming the “short” diode model to be valid, one can express the device currents as a function of the charges in each region, divided by the corresponding transit or lifetime. In the general case one considers the forward bias charges as well as the reverse bias charges. This results in:


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