May 5, 2008 #1 W wangwang96 Junior Member level 1 Joined Jan 19, 2006 Messages 15 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,383 bandgap tc I have designed a bandgap and sweep the temperature curve,I found the temperature curve is concave,but it should be protruding according to theory,I am confused about it ,someone can explain it for me? thanks a lot!
bandgap tc I have designed a bandgap and sweep the temperature curve,I found the temperature curve is concave,but it should be protruding according to theory,I am confused about it ,someone can explain it for me? thanks a lot!
May 5, 2008 #2 M mpig09 Full Member level 4 Joined Aug 26, 2005 Messages 232 Helped 8 Reputation 16 Reaction score 2 Trophy points 1,298 Location Taipei Activity points 2,810 tc contributions to a band gap Dear wangwang96: If your circuit has two res, please adjust the res you can see the curve will change. When you design a bandgap circuit, you need to check res, veb of TC and the same sign TC of res. mpig
tc contributions to a band gap Dear wangwang96: If your circuit has two res, please adjust the res you can see the curve will change. When you design a bandgap circuit, you need to check res, veb of TC and the same sign TC of res. mpig
May 6, 2008 #3 W wangwang96 Junior Member level 1 Joined Jan 19, 2006 Messages 15 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,383 tc curve mpig09 said: Dear wangwang96: If your circuit has two res, please adjust the res you can see the curve will change. When you design a bandgap circuit, you need to check res, veb of TC and the same sign TC of res. mpig Click to expand... Thanks mpig,I changed the resistor to ideal resistor,but the TC curve is stilll concave,I think if the BJT model has some problems?
tc curve mpig09 said: Dear wangwang96: If your circuit has two res, please adjust the res you can see the curve will change. When you design a bandgap circuit, you need to check res, veb of TC and the same sign TC of res. mpig Click to expand... Thanks mpig,I changed the resistor to ideal resistor,but the TC curve is stilll concave,I think if the BJT model has some problems?
May 7, 2008 #4 W wangwang96 Junior Member level 1 Joined Jan 19, 2006 Messages 15 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,383 tc curv somebody can help me to solve the problem,thanks!
May 9, 2008 #5 J jeffsky520 Member level 4 Joined Oct 11, 2006 Messages 72 Helped 5 Reputation 10 Reaction score 0 Trophy points 1,286 Activity points 1,586 about bandgap TC curve I have also met the same situation, but have no idea about that even now.