bruce mayer, pe licensed electrical & mechanical engineer bmayer@chabotcollege
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© BMayer@ChabotCollege.edu • ENGR-43_Prob_12-24_pFET_Csource_Amp_Soln.pptx1
Bruce Mayer, PE Engineering-43 • Electrical Circuits & Devices
Bruce Mayer, PELicensed Electrical & Mechanical Engineer
BMayer@ChabotCollege.edu
Engineering 43
Chp12Prob 12.24
SolutionCommon-Source pFET
Amplifier
© BMayer@ChabotCollege.edu • ENGR-43_Prob_12-24_pFET_Csource_Amp_Soln.pptx2
Bruce Mayer, PE Engineering-43 • Electrical Circuits & Devices
ENGR43 P12.24
Use LOAD-LINE Analysis to Find vo(t) for the Ckt below
• Note: This a pFET Circuit
© BMayer@ChabotCollege.edu • ENGR-43_Prob_12-24_pFET_Csource_Amp_Soln.pptx3
Bruce Mayer, PE Engineering-43 • Electrical Circuits & Devices
The pFET Characteristic
© BMayer@ChabotCollege.edu • ENGR-43_Prob_12-24_pFET_Csource_Amp_Soln.pptx4
Bruce Mayer, PE Engineering-43 • Electrical Circuits & Devices
P12.24 GamePlan
Draw LoadLine for the 1 kΩ Resistor load, then find the operating (vDS, iD) Values corresponding to This Set of vGS values • vGS = [7v + 1V•sin(0)] −10V
– This is VGSQ = −3 V
• vGS = [7v + 1V•sin(π)] −10V– This is vGS,max = −4 V
• vGS = [7v + 1V•sin(3π/2)] −10V– This is vGS,min = −2 V
© BMayer@ChabotCollege.edu • ENGR-43_Prob_12-24_pFET_Csource_Amp_Soln.pptx5
Bruce Mayer, PE Engineering-43 • Electrical Circuits & Devices
© BMayer@ChabotCollege.edu • ENGR-43_Prob_12-24_pFET_Csource_Amp_Soln.pptx6
Bruce Mayer, PE Engineering-43 • Electrical Circuits & Devices
© BMayer@ChabotCollege.edu • ENGR-43_Prob_12-24_pFET_Csource_Amp_Soln.pptx7
Bruce Mayer, PE Engineering-43 • Electrical Circuits & Devices
© BMayer@ChabotCollege.edu • ENGR-43_Prob_12-24_pFET_Csource_Amp_Soln.pptx8
Bruce Mayer, PE Engineering-43 • Electrical Circuits & Devices
© BMayer@ChabotCollege.edu • ENGR-43_Prob_12-24_pFET_Csource_Amp_Soln.pptx9
Bruce Mayer, PE Engineering-43 • Electrical Circuits & Devices
© BMayer@ChabotCollege.edu • ENGR-43_Prob_12-24_pFET_Csource_Amp_Soln.pptx10
Bruce Mayer, PE Engineering-43 • Electrical Circuits & Devices
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