Mar 10, 2010 #1 D divyasasi Newbie level 3 Joined Nov 17, 2009 Messages 4 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Location india Activity points 1,304 i just want to design a constant current source(0-4mA). pls help me.
Mar 10, 2010 #2 grittinjames Advanced Member level 1 Joined Jun 1, 2006 Messages 479 Helped 44 Reputation 90 Reaction score 32 Trophy points 1,308 Location bangalore india Activity points 3,985 Use Opamp feed back loop for getting simple constant current, But floating one
Mar 10, 2010 #3 K karesz Advanced Member level 5 Joined Apr 13, 2008 Messages 2,328 Helped 327 Reputation 654 Reaction score 52 Trophy points 1,328 Location EU Activity points 14,592 Hi, refer to figures 34/38 pls... K.
Mar 10, 2010 #4 A abbeyromy Full Member level 4 Joined Feb 2, 2010 Messages 194 Helped 26 Reputation 50 Reaction score 7 Trophy points 1,298 Location US Activity points 2,708 @divyasasi Find an example in pspice attached. It will explain you CCS practically
Mar 10, 2010 #5 K karesz Advanced Member level 5 Joined Apr 13, 2008 Messages 2,328 Helped 327 Reputation 654 Reaction score 52 Trophy points 1,328 Location EU Activity points 14,592 Hi divyasasi, betrayal some details pls!? did you need a fixed current/voltage controlled or onle divere setted/adjusted values, & how is the supply voltage... K. Added after 29 minutes: Current source w. floating load, www.ecircuitcenter.com/Circuits/curr_src1/curr_src1.htm And a EDN circuit with up to +/- 1.2V contolled up to +/- 6mA... K.
Hi divyasasi, betrayal some details pls!? did you need a fixed current/voltage controlled or onle divere setted/adjusted values, & how is the supply voltage... K. Added after 29 minutes: Current source w. floating load, www.ecircuitcenter.com/Circuits/curr_src1/curr_src1.htm And a EDN circuit with up to +/- 1.2V contolled up to +/- 6mA... K.