value set: Vcc=10V, =70 fT1=215MHz, fT2=90MHz, Ccb1=Ccb2=3pF a) Ic1=2mA, Ic2=0.5mA @ DC c) fp,c1=fp,c2=fp,c3=fz,E1=fz,B2=5kHz f) i) =5%

 value set:

Vcc=10V, β=70 

fT1=215MHz, fT2=90MHz, Ccb1=Ccb2=3pF

a) Ic1=2mA, Ic2=0.5mA @ DC

c) fp,c1=fp,c2=fp,c3=fz,E1=fz,B2=5kHz

f) i) δ=5% , ii) tr=T/3

Transcribed Image Text:

RB1 180 ΚΩΣ NOTE: Some BJT parameter values, some DC voltage/current values and some specification values are shown blank. For each Project Group, a different value set will be provided separately. c2 Rg. 1kQ< Cw2 RE2< Cwl! 10RE pF CE1 CBT 1k Vcc= = B= for both BJTS (VT-25.9mV) and parameters for high frequency behaviour are, fri=__MHz, fr2=__MHz, Ccb1=Ccb2=_pF. PART 1 (deadline: 6 May 2022 Fri 23:59) a) Find Re1 and RB2 such that, Ic₁=___mA and Ic2=_mA @ DC (Take VBE-0.7V in DC). b) Calculate the medium frequency voltage gain Avm-Vo/vg. PART 2 (deadline: 13 May 2022 Fri 23:59) c) Determine CE1 and CB2 such that, fp.c1-fp,c2-fp.c3=fz,E1=fz,B2=_Hz. Also, calculate the remaining low-frequency poles of Av(s)=vo/vg in [Hz]. d) Determine high-frequency poles of Av(s)=vo/vg in [Hz]. e) Using the gain and pole/zero values you obtained, express the s-domain transfer function for Av(s)=vo/vg. If the function can be simplified, show the simplified version too. PART 3 (deadline: 20 May 2022 Fri 23:59) f) For a symmetrical square-wave input signal, find the frequency in [Hz], at which the output signal exhibits i) a tilt of 8=_%, ii) a rise time of tr-T/___. (Note: T: period. T=1/f) g) Draw the Bode plots (magnitude & phase responses) for Av(s). NOTE: For Bode plots, use the empty semi-logarithmic graph which will be uploaded to Moodle. Each "PART": - will be submitted via Moodle ("assignment" pages will be provided). - will be submitted by ONE group member of a Project Group on behalf of all members. - can be submitted with handwritten solutions. PROJECT REPORT (deadline: 27 May 2022 Fri 23:59) - will be submitted via Moodle ("assignment" page will be provided). - will be submitted by ONE member for each Project Group on behalf of all members. - should be submitted as a computer-written document by following a specific format (the format will be uploaded to Moodle) - should include all calculations of PARTS 1, 2, 3, with relevant explanations/comments. - should also include circuit simulation results of DC currents (Ici, Ic2) and Bode plots. (obtained preferably with LTSPICE) the RB2 RC2 >12kQ2 cl VCC +%₂ RB1 180 ΚΩΣ NOTE: Some BJT parameter values, some DC voltage/current values and some specification values are shown blank. For each Project Group, a different value set will be provided separately. c2 Rg. 1kQ< Cw2 RE2< Cwl! 10RE pF CE1 CBT 1k Vcc= = B= for both BJTS (VT-25.9mV) and parameters for high frequency behaviour are, fri=__MHz, fr2=__MHz, Ccb1=Ccb2=_pF. PART 1 (deadline: 6 May 2022 Fri 23:59) a) Find Re1 and RB2 such that, Ic₁=___mA and Ic2=_mA @ DC (Take VBE-0.7V in DC). b) Calculate the medium frequency voltage gain Avm-Vo/vg. PART 2 (deadline: 13 May 2022 Fri 23:59) c) Determine CE1 and CB2 such that, fp.c1-fp,c2-fp.c3=fz,E1=fz,B2=_Hz. Also, calculate the remaining low-frequency poles of Av(s)=vo/vg in [Hz]. d) Determine high-frequency poles of Av(s)=vo/vg in [Hz]. e) Using the gain and pole/zero values you obtained, express the s-domain transfer function for Av(s)=vo/vg. If the function can be simplified, show the simplified version too. PART 3 (deadline: 20 May 2022 Fri 23:59) f) For a symmetrical square-wave input signal, find the frequency in [Hz], at which the output signal exhibits i) a tilt of 8=_%, ii) a rise time of tr-T/___. (Note: T: period. T=1/f) g) Draw the Bode plots (magnitude & phase responses) for Av(s). NOTE: For Bode plots, use the empty semi-logarithmic graph which will be uploaded to Moodle. Each "PART": - will be submitted via Moodle ("assignment" pages will be provided). - will be submitted by ONE group member of a Project Group on behalf of all members. - can be submitted with handwritten solutions. PROJECT REPORT (deadline: 27 May 2022 Fri 23:59) - will be submitted via Moodle ("assignment" page will be provided). - will be submitted by ONE member for each Project Group on behalf of all members. - should be submitted as a computer-written document by following a specific format (the format will be uploaded to Moodle) - should include all calculations of PARTS 1, 2, 3, with relevant explanations/comments. - should also include circuit simulation results of DC currents (Ici, Ic2) and Bode plots. (obtained preferably with LTSPICE) the RB2 RC2 >12kQ2 cl VCC +%₂

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