May 19, 2010 #1 W wei9321 Member level 3 Joined Feb 5, 2009 Messages 55 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,609 as the picture,If vo1=5v,v02=24v how to set the R1,R2,R3,R4?
May 19, 2010 #2 S srizbf Advanced Member level 5 Joined Apr 3, 2010 Messages 1,992 Helped 417 Reputation 840 Reaction score 329 Trophy points 1,363 Activity points 10,985 what is the voltage across anode-cathode of tl431 reqd? information is missing. srizbf 19thmay2010
May 19, 2010 #3 W wei9321 Member level 3 Joined Feb 5, 2009 Messages 55 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,609 sorry,I amend it !
May 20, 2010 #4 S srizbf Advanced Member level 5 Joined Apr 3, 2010 Messages 1,992 Helped 417 Reputation 840 Reaction score 329 Trophy points 1,363 Activity points 10,985 what is the purpose of the ckt? if a Vo1 or Vo2 is available then the led is to be lit up? if so applying Vo1 also for led power?. and to me the ckt looks like combining two requirements. i may be wrong. if that is not correct please correct me . srizbf 20thmay2010
what is the purpose of the ckt? if a Vo1 or Vo2 is available then the led is to be lit up? if so applying Vo1 also for led power?. and to me the ckt looks like combining two requirements. i may be wrong. if that is not correct please correct me . srizbf 20thmay2010
May 20, 2010 #5 W wei9321 Member level 3 Joined Feb 5, 2009 Messages 55 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,609 as the second picture,my purpose is to acquire the dual vout
May 20, 2010 #6 S srizbf Advanced Member level 5 Joined Apr 3, 2010 Messages 1,992 Helped 417 Reputation 840 Reaction score 329 Trophy points 1,363 Activity points 10,985 acquiring vout .. sorry i am not clear. seeing the new image , i deduce that if both Vo1 and Vo2 is available , then led is on.( a sort of indication that Vo1 and Vo2 is ok?) what do you want the led status when Vo2 is not at reqd voltage? (or) give a truth table form for i/ps Vo1 and Vo2 and o/p led status. srizbf 20thmay2010
acquiring vout .. sorry i am not clear. seeing the new image , i deduce that if both Vo1 and Vo2 is available , then led is on.( a sort of indication that Vo1 and Vo2 is ok?) what do you want the led status when Vo2 is not at reqd voltage? (or) give a truth table form for i/ps Vo1 and Vo2 and o/p led status. srizbf 20thmay2010