Sunday, April 28, 2019

Now some Z matching questions

The rule of thumb for small signal amps states that Rl should equal Rc. As you can see The transistor Z which is Zgen in my circuit is equal Rc WHEN Vc is set to one half Vcc. Rc and Z transistor form a voltage divider and therefore are equal when Vc is equal 1/2 Vcc.  The shot ahead of this one shows the output is higher when Rl is larger than Rc.

So the question to be asked before designing the circuit is do we want voltage or power gain?

How much collector current shall we have?

What will the load Z be?

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