Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

how to raise the direct current gain in op amp circuit ?

Status
Not open for further replies.

fendyfazeli

Newbie level 4
Joined
Jul 22, 2009
Messages
5
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
Malaysia
Activity points
1,304
current gain

the problem is : how to raise 30 % direct current (DC) gain in op-amp circuit ?

Do we need to do something at R9 & R10 to improve it?
or depend on the Vcc?

Thanks..

 

how to raise amperage

As far as I see, it's a standard OP structure. Current gain isn't a parameter here, I think. You have voltage gain, output impedance, current limit. Which parameter you want to modify?
 
current gain circuit

the parameter which to modify is Direct Current (DC) gain or voltage gain. How to improve the parameter? which stage in OP that we need to modfy? thanks..
 

dc current gain

Hi..

question 1:
the problem is : how to raise 30 % direct current (DC) gain in op-amp circuit ?
answer : try to change the resistor R4 value to 1K , Q10 multiplier to 15 times and change the Q8 value to 0.2

Question2 :
Do we need to do something at R9 & R10 to improve it?
or depend on the Vcc?
answer : no...

thanks
 
how to raise amps

Optimization of the component parameters can be used only if all other reserves for the structural and circuits topology improvement are exhausted,which in practice,means never......

add a amp stage but not a gain stage in the signal path way.
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top