I have to find R1 and R2 so I can make Q1 work as a current source 10-100mA. Thanks

• β=100
• Vbe=0.6V
• Vcc=12V

 

Do you know how to make it pass 10 mA with the given information?

 

Do you know what β represents?

We don't do homework here, but we will help you with it.

 

This is a REALLY bad circuit design, so just keep in mind that this is a highly-idealized paper-only exercise that is way oversimplified.

To start, replace the resistor and pot with a single resistor, call it Ro. What does the value of Ro need to be to a particular collector current.

 

I want to delete this

 

This is a REALLY bad circuit design, so just keep in mind that this is a highly-idealized paper-only exercise that is way oversimplified.

To start, replace the resistor and pot with a single resistor, call it Ro. What does the value of Ro need to be to a particular collector current.

Delete this thread i did it.Thanks

 

Delete this thread i did it.Thanks

Not how it works. When you post something here, it stays due to the archival nature of a forum. The whole point is that the problems one person struggles with and the help they receive from other members because a resource for future people to search and learn from.

 

Delete this thread i did it.Thanks

We would appreciate a reply on how you did it.