We can use this simple circuit, using the B-E junction of the transistor like a diode, keeping the collector open.
0V 1470Ω 3 2 Vin +− 0 4 +− I-V Characteristics of BC547 *Including the BC547 model file .include bc547.txt vin 1 0 dc 5v r1 1 2 470 *Voltage source of 0 V to measure current vib 2 3 dc 0v *Specifying BJTs in this manner- *name collector base emitter modelname as in model file q1 4 3 0 bc547a *Vin for DC analysis .dc vin -3 3 0.01 .control run plot vib#branch vs v(3) .endc _______________________________________________ Xcircuit-dev mailing list Xcircuit-dev@opencircuitdesign.com http://www.opencircuitdesign.com/mailman/listinfo/xcircuit-dev
