Wiki

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
university:courses:electronics:electronics-lab-4m [12 Jul 2019 13:01]
andreeapop [Activity 4M. NMOS FET characteristic curves]
university:courses:electronics:electronics-lab-4m [23 Aug 2019 12:39] (current)
amiclaus
Line 27: Line 27:
 <WRAP centeralign>​ Figure 2 NMOS I<​sub>​D</​sub>​ vs V<​sub>​DS</​sub>​ breadboard circuit </​WRAP>​ <WRAP centeralign>​ Figure 2 NMOS I<​sub>​D</​sub>​ vs V<​sub>​DS</​sub>​ breadboard circuit </​WRAP>​
  
-The arbitrary waveform generator should be configured for a 100 Hz triangle wave with 2.5 volt amplitude and 1.25 volt offset. The differential scope channel 2 (2+/-) measures the current in the resistor (and in the transistor). Scope channel 1 should be connected to display the output of the waveform generator. The current flowing through the transistor is the voltage difference 2+ and 2- divided by the resistor value (100Ω).+The arbitrary waveform generator should be configured for a 100 Hz triangle wave with 2.5 volt amplitude ​peak-to-peak ​and 1.25 volt offset. The differential scope channel 2 (2+/-) measures the current in the resistor (and in the transistor). Scope channel 1 should be connected to display the output of the waveform generator. The current flowing through the transistor is the voltage difference 2+ and 2- divided by the resistor value (100Ω).
  
  
Line 69: Line 69:
 The setup is the same as the previous experiment except now Scope channel 1 is set to display the transistor V<​sub>​DS</​sub>​. The drain voltage is swept using a 3 volt peak to peak ramp with an offset equal to 1.5V from the arbitrary waveform generator. V<​sub>​DS</​sub>​ is measured by single ended scope input 1+. The drain current is measured by differential scope input 2+/- across the 100Ω resistor R<​sub>​1</​sub>​. The setup is the same as the previous experiment except now Scope channel 1 is set to display the transistor V<​sub>​DS</​sub>​. The drain voltage is swept using a 3 volt peak to peak ramp with an offset equal to 1.5V from the arbitrary waveform generator. V<​sub>​DS</​sub>​ is measured by single ended scope input 1+. The drain current is measured by differential scope input 2+/- across the 100Ω resistor R<​sub>​1</​sub>​.
    
-A stair-step waveform will be needed to drive the gate of the transistor. Using the buffer in the Scopy Signal Generator tool, construct a stair-step waveform with 5 levels on channel 2 (W2). Load the following csv file (extract from archive): {{:​university:​courses:​electronics:​stair-step.zip|}}. Set the amplitude to 3V and sampleRate to 100Hz.+A stair-step waveform will be needed to drive the gate of the transistor. Using the buffer in the Scopy Signal Generator tool, construct a stair-step waveform with 5 levels on channel 2 (W2). Load the following csv file (extract from archive): {{:​university:​courses:​electronics:​stair-step.zip|}}. Set the amplitude to 3V peak-to-peak ​and sampleRate to 100Hz.
  
 ===== Procedure: ===== ===== Procedure: =====
university/courses/electronics/electronics-lab-4m.txt · Last modified: 23 Aug 2019 12:39 by amiclaus