October 18, 2011 ECEN 325 Homework #5 Due: 10-25-2011, 8:00AM Homeworks will not be received after due. Instructor: Sam Palermo 1.(50 points) Characterize the 2N2222 NPN-BJT in PSpice. Obtain the values for βDC, βac, rπ, gm, and roat IC=0.5 mA. •In order to obtain these values, 4 plots must be generated •2 input characteristic plots (ICvs VBE& IBvs VBE) with the collector-emitter voltage fixed around 1.5 V. •2 output characteristic plots (ICvs VCE& ICvs IB) with the base-emitter voltage fixed such that the ICis within 100µA-4mA. 2.(50 points) For the following circuit, bias your transistor such that g
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