Experiment EB1: FET Amplifier Frequency Response Learning Outcome LO2: Analyse low and high frequency response of amplifiers. Apparatus Equipment required Components required Power Supply 1 N-channel JFET 2N5457 1 – – Oscilloscope 1 Resistor 10k (1/4W) 2 – – Digital Multimeter 1 Resistor 3.3k (1/4W) 1 – – Breadboard 1 Resistor 3.9k (1/4W) 1 – – Function Generator 1 Resistor 22k (1/4W) 1 – – Mylar Capacitor 0.47F 2 – Mylar Capacitor 0.1F 1 – Mylar Capacitor 0.01F 1 – 50 k potentiometer -- 1 Objectives: Construct and test a voltage amplifier using N-channel JFET device in a common source configuration Apply the voltage divider biasing method to set the DC operating point (VGSq ,IDSq) . Verify the estimated DC operating point with the measured data. Investigate the effect of frequency changes on the voltage gain of the amplifier, measure its frequency response and obtain its operating bandwidth. Important Notes All related calculation questions that does not require experimental data must be answered before coming to the lab. You are required to show all the calculation steps when requested by the lab instructor. During the evaluation session, your lab instructor may request you to demonstrate how the measurement data is obtained and explain your experimental results. Report Submission after completing each section of the You must obtain the signature of the Instructor experiment. Together with Rubric assessment form, Submit your report to the Lab Supervisor, immediately after the experiment. Background Theory An amplifier is a circuit that increases/decrease the signal value and in this experiment the signal to be amplified is the voltage. In this experiment you are going to investigate frequency response characteristic of a voltage amplifier circuit using the N-channel JFET device
Experiment EB1: FET Amplifier Frequency Response Learning Outcome LO2: Analyse low and high frequency response of amplifiers. Apparatus Equipment required Components required Power Supply – 1 N-channel JFET 2N5457 – 1 Oscilloscope – 1 Resistor 10k (1/4W) – 2 Digital Multimeter – 1 Resistor 3.3k (1/4W) – 1 Breadboard – 1 Resistor 3.9k (1/4W) – 1 Function Generator – 1 Resistor 22k (1/4W) – 1 Mylar Capacitor 0.47F – 2 Mylar Capacitor 0.1F – 1 Mylar Capacitor 0.01F – 1 50 k potentiometer -- 1 Objectives: Construct and test a voltage amplifier using N-channel JFET device in a common source configuration Apply the voltage divider biasing method to set the DC operating point (VGSq ,IDSq) . Verify the estimated DC operating point with the measured data. Investigate the effect of frequency changes on the voltage gain of the amplifier, measure its frequency response and obtain its operating bandwidth. Important Notes All related calculation questions that does not require experimental data must be answered before coming to the lab. You are required to show all the calculation steps when requested by the lab instructor. During the evaluation session, your lab instructor may request you to demonstrate how the measurement data is obtained and explain your experimental results. Report Submission You must obtain the signature of the Instructor after completing each section of the experiment. Together with Rubric assessment form, Submit your report to the Lab Supervisor, immediately after the experiment. Background Theory An amplifier is a circuit that increases/decrease the signal value and in this experiment the signal to be amplified is the voltage. In this experiment you are going to investigate frequency response characteristic of a voltage amplifier circuit using the N-channel JFET device
EB1%202016-17_frDrSenthil_Nov16.docx