adjustable current source

Status
Not open for further replies.
G

gehan_s

Member level 3
Joined
Aug 31, 2012
Messages
62
Helped
3
Reputation
6
Reaction score
3
Trophy points
1,288
Location
Sri Lanka
Activity points
1,799
hey all

i need an adjustable current source other than lm334(i searched online but could only find that). my specs are 10mA constant current with an operating voltage of 1 to 35V, through hole and cheap :-D

thanks in advance
 

other than lm334
Click to expand...
without a justification this is a completely arbitrary requirement like "it must come in a green package".
 

You could use a TL431 shunt regulator as shown in Figures 31 and 32 of this data sheet. These are inexpensive and can use an inexpensive general purpose NPN transistor such as a 2N2222, but I see no advantage of that over the LM334 unless you need to go over 10mA or the voltage rating of the LM334.
 
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…