how to increase the line regulation of a BGR

Status
Not open for further replies.
C

Chethan

Full Member level 3
Joined
Jul 11, 2005
Messages
171
Helped
20
Reputation
40
Reaction score
12
Trophy points
1,298
Location
Bangalore
Activity points
2,837
Hi,
can we increase the line regulation of a BGR by some compensation ckt. I have designed an brokaw's arrow BGR whose line regulation is not soo good. can someone suggest me some compensation ckt.

thanx in advance
 

Both load & line regulations are related to loop gain depending on your circuit architecture. The obvious way is to increase the open loop gain of your design but remember to check your loop stability.
 

First,u are sure that ur bias ckt is normal operating with Vcc varying.
Second, try to increase the open loop gain.
 

hmm, i'm not sure if gain is the only factor - you can have a lot of gain, but if your mirrors have low output impedance then you will have a lot of line reg variation.

I suggest cascoding your mirrors.
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…