On page 38 of this document, http://focus.ti.com/lit/an/slod006b/slod006b.pdf , could someone tell me how they got equation 2-28?
I see how to do a KVL loop on the input side of the BJT: Vin = RbIb + Vbe
But why do they say RbIb < Vin - Vbe ?
I see how to do a KVL loop on the input side of the BJT: Vin = RbIb + Vbe
But why do they say RbIb < Vin - Vbe ?