Jun 23, 2011 #1 shaq Full Member level 5 Joined Jul 23, 2005 Messages 311 Helped 14 Reputation 28 Reaction score 4 Trophy points 1,298 Activity points 3,397 Dear all, If I have 4-voltage, they are A = 0.3V, B = 0.2V, C = 0.5V and D = 0.4V In this case, B is minimum. I need a circuit which can select the minmum voltage. How to design the minimum voltage selector? (Do not use ADC)
Dear all, If I have 4-voltage, they are A = 0.3V, B = 0.2V, C = 0.5V and D = 0.4V In this case, B is minimum. I need a circuit which can select the minmum voltage. How to design the minimum voltage selector? (Do not use ADC)
Jun 23, 2011 #2 mister_rf Advanced Member level 5 Joined Feb 26, 2008 Messages 1,870 Helped 1,040 Reputation 2,088 Reaction score 953 Trophy points 1,393 Location Romania Activity points 11,516 To select or just to indicate the minimum voltage? Is this a theoretical situation with fixed values for A, B, C, D or later these values can change?
To select or just to indicate the minimum voltage? Is this a theoretical situation with fixed values for A, B, C, D or later these values can change?
Jun 24, 2011 #3 shaq Full Member level 5 Joined Jul 23, 2005 Messages 311 Helped 14 Reputation 28 Reaction score 4 Trophy points 1,298 Activity points 3,397 Dear mister_rf , These are can be changed.
Jun 24, 2011 #4 andre_luis Super Moderator Staff member Joined Nov 7, 2006 Messages 9,639 Helped 1,191 Reputation 2,401 Reaction score 1,216 Trophy points 1,403 Location Brazil Activity points 55,903 Take a look here : ANALOG VOLTAGE SELECTOR CIRCUIT WITH SELECTED VOLTAGE DETECTION +++