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university:courses:electronics:electronics-lab-11m [13 Feb 2019 15:54]
amiclaus add Resources
university:courses:electronics:electronics-lab-11m [12 Jul 2019 13:36]
andreeapop [Activity 11M. The Source follower (NMOS)]
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-====== Activity ​11M. The Source follower (NMOS)======+====== ActivityThe Source follower (NMOS)======
  
 ===== Objective: ===== ===== Objective: =====
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 Plot the measured voltage amplitude seen at the source. The nominal source current in M<​sub>​1</​sub>​ is (Vn - V<​sub>​GS</​sub>​) / 4.7KΩ or 720uA. We can calculate r<​sub>​s</​sub>​from this current as ohms. How does this r<​sub>​s</​sub>​ compare to the from the test data? Change the value of R<​sub>​1</​sub>​ from 4.7 KΩ to 2.2 KΩ and re-measure the output impedance of the circuit. How has it changed and why? Plot the measured voltage amplitude seen at the source. The nominal source current in M<​sub>​1</​sub>​ is (Vn - V<​sub>​GS</​sub>​) / 4.7KΩ or 720uA. We can calculate r<​sub>​s</​sub>​from this current as ohms. How does this r<​sub>​s</​sub>​ compare to the from the test data? Change the value of R<​sub>​1</​sub>​ from 4.7 KΩ to 2.2 KΩ and re-measure the output impedance of the circuit. How has it changed and why?
  
 +<WRAP round download>​
 **Resources:​** **Resources:​**
   * Fritzing files: [[ https://​minhaskamal.github.io/​DownGit/#/​home?​url=https://​github.com/​analogdevicesinc/​education_tools/​tree/​master/​m2k/​fritzing/​mos_source_follower_bb| mos_source_follower_bb]]   * Fritzing files: [[ https://​minhaskamal.github.io/​DownGit/#/​home?​url=https://​github.com/​analogdevicesinc/​education_tools/​tree/​master/​m2k/​fritzing/​mos_source_follower_bb| mos_source_follower_bb]]
   * LTSpice files: [[ https://​minhaskamal.github.io/​DownGit/#/​home?​url=https://​github.com/​analogdevicesinc/​education_tools/​tree/​master/​m2k/​ltspice/​mos_source_follower_ltspice | mos_source_follower_ltspice]]   * LTSpice files: [[ https://​minhaskamal.github.io/​DownGit/#/​home?​url=https://​github.com/​analogdevicesinc/​education_tools/​tree/​master/​m2k/​ltspice/​mos_source_follower_ltspice | mos_source_follower_ltspice]]
 +</​WRAP>​
  
 **Return to Lab Activity [[university:​courses:​electronics:​labs|Table of Contents]]** **Return to Lab Activity [[university:​courses:​electronics:​labs|Table of Contents]]**
  
  
university/courses/electronics/electronics-lab-11m.txt · Last modified: 12 Jul 2019 13:36 by andreeapop