- #1
green-fresh
- 14
- 0
hi all i have some questions about a commen emmiter bjt amplifier circuit .
if i had this circuit :
and i want to find the ripple of voltage in outout :
i will use this equation :
[tex]V_{O(p-p)}=2I_{CQ} (R_L || R_C)[/tex]
but why i put[tex] R_L || R_C[/tex] not [tex] R_L || R_C + R_E[/tex] or how i conclude that this is the equivalent resistance at output .
is this connected with thevnin equivalent circuit at output if so !how.
and is it right that i can here in this problem put one power source (10v) without any change on answers.
thanks .
p.s: this isn't a homwork.
if i had this circuit :
and i want to find the ripple of voltage in outout :
i will use this equation :
[tex]V_{O(p-p)}=2I_{CQ} (R_L || R_C)[/tex]
but why i put[tex] R_L || R_C[/tex] not [tex] R_L || R_C + R_E[/tex] or how i conclude that this is the equivalent resistance at output .
is this connected with thevnin equivalent circuit at output if so !how.
and is it right that i can here in this problem put one power source (10v) without any change on answers.
thanks .
p.s: this isn't a homwork.