Jul 25, 2019 #1 I iimagine Member level 5 Joined Oct 23, 2013 Messages 85 Helped 10 Reputation 20 Reaction score 10 Trophy points 8 Activity points 512 Thought I should share my latest design to get some feed back and suggestion. No constant current source/sink! Attachments DeleteMe.PNG 31.7 KB · Views: 204
Thought I should share my latest design to get some feed back and suggestion. No constant current source/sink!
Jul 25, 2019 #2 FvM Super Moderator Staff member Joined Jan 22, 2008 Messages 52,400 Helped 14,749 Reputation 29,780 Reaction score 14,094 Trophy points 1,393 Location Bochum, Germany Activity points 298,004 What are Q4/Q5 if not current sources?
Jul 25, 2019 #3 schmitt trigger Advanced Member level 5 Joined Apr 17, 2013 Messages 2,725 Helped 859 Reputation 1,722 Reaction score 850 Trophy points 1,393 Activity points 18,445 I love discrete semiconductor circuits. Especially when they are simple and elegant like yours. But as FvM mentioned, Q4 and Q5 are gated current sources. Otherwise the capacitor would not charge linearly.
I love discrete semiconductor circuits. Especially when they are simple and elegant like yours. But as FvM mentioned, Q4 and Q5 are gated current sources. Otherwise the capacitor would not charge linearly.
Jul 25, 2019 #4 I iimagine Member level 5 Joined Oct 23, 2013 Messages 85 Helped 10 Reputation 20 Reaction score 10 Trophy points 8 Activity points 512 FvM said: What are Q4/Q5 if not current sources? Click to expand... Right, well they are switches for charging and discharging arranged to act as constant current source, what i meant by no constant current was the conventional current mirror, 2 transistors source/sink ect...
FvM said: What are Q4/Q5 if not current sources? Click to expand... Right, well they are switches for charging and discharging arranged to act as constant current source, what i meant by no constant current was the conventional current mirror, 2 transistors source/sink ect...