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university:courses:electronics:electronics-lab-9 [15 Feb 2019 16:49]
amiclaus add ltspice files
university:courses:electronics:electronics-lab-9 [05 Mar 2019 12:24]
amiclaus [Using an NPN transistor array:]
Line 88: Line 88:
 All the emitters can be tired to ground ( pins 3,7,10,13 ). Devices Q<​sub>​1</​sub>,​ Q<​sub>​2</​sub>​ and Q<​sub>​3</​sub>​ can be connected in parallel and serve as Q<​sub>​2</​sub>​ in figure 2. Q<​sub>​4</​sub>​ and Q<​sub>​5</​sub>​can be used for Q<​sub>​1</​sub>​ and Q<​sub>​3</​sub>​in figure 2. An individual device such as a 2N3904 etc. can be used for Q<​sub>​4</​sub>​ in figure 2. The 3 to 1 emitter area ratio will result in an output voltage very nearly 1.2 volts if R<​sub>​1</​sub>​ and R<​sub>​3</​sub>​ are both equal to 2KΩ (when R<​sub>​2</​sub>​ is 100Ω). All the emitters can be tired to ground ( pins 3,7,10,13 ). Devices Q<​sub>​1</​sub>,​ Q<​sub>​2</​sub>​ and Q<​sub>​3</​sub>​ can be connected in parallel and serve as Q<​sub>​2</​sub>​ in figure 2. Q<​sub>​4</​sub>​ and Q<​sub>​5</​sub>​can be used for Q<​sub>​1</​sub>​ and Q<​sub>​3</​sub>​in figure 2. An individual device such as a 2N3904 etc. can be used for Q<​sub>​4</​sub>​ in figure 2. The 3 to 1 emitter area ratio will result in an output voltage very nearly 1.2 volts if R<​sub>​1</​sub>​ and R<​sub>​3</​sub>​ are both equal to 2KΩ (when R<​sub>​2</​sub>​ is 100Ω).
  
 +<WRAP round download>​
 **Resources:​** **Resources:​**
   * Fritzing files: [[ https://​minhaskamal.github.io/​DownGit/#/​home?​url=https://​github.com/​analogdevicesinc/​education_tools/​tree/​master/​m2k/​fritzing/​regulated_voltage_reference_bb | regulated_voltage_reference_bb]]   * Fritzing files: [[ https://​minhaskamal.github.io/​DownGit/#/​home?​url=https://​github.com/​analogdevicesinc/​education_tools/​tree/​master/​m2k/​fritzing/​regulated_voltage_reference_bb | regulated_voltage_reference_bb]]
   * LTspice files: [[ https://​minhaskamal.github.io/​DownGit/#/​home?​url=https://​github.com/​analogdevicesinc/​education_tools/​tree/​master/​m2k/​ltspice/​regulated_voltage_reference_ltspice | regulated_voltage_reference_ltspice]]   * LTspice files: [[ https://​minhaskamal.github.io/​DownGit/#/​home?​url=https://​github.com/​analogdevicesinc/​education_tools/​tree/​master/​m2k/​ltspice/​regulated_voltage_reference_ltspice | regulated_voltage_reference_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-9.txt · Last modified: 12 Jul 2019 13:27 by andreeapop