Jan 22, 2015 #1 P panda1234 Full Member level 2 Joined Jan 22, 2015 Messages 125 Helped 4 Reputation 8 Reaction score 4 Trophy points 18 Activity points 1,172 Hi guys, this is my circuit. Error says Node between two capacitor is floating.
Jan 22, 2015 #2 FvM Super Moderator Staff member Joined Jan 22, 2008 Messages 52,432 Helped 14,752 Reputation 29,786 Reaction score 14,106 Trophy points 1,393 Location Bochum, Germany Activity points 298,153 Yes, it is. That's a problem at least in transient and bias point analysis. You need to add a high ohmic resistor (e.g. Gohm range) parallel to one of the two capacitors.
Yes, it is. That's a problem at least in transient and bias point analysis. You need to add a high ohmic resistor (e.g. Gohm range) parallel to one of the two capacitors.
Jan 23, 2015 #3 LvW Advanced Member level 6 Joined May 7, 2008 Messages 5,910 Helped 1,753 Reputation 3,512 Reaction score 1,364 Trophy points 1,393 Location Germany Activity points 40,402 Keep in mind that each node needs a dc path to ground (or to a voltage source). This path can be a resostor as high as 1E12 ohms.
Keep in mind that each node needs a dc path to ground (or to a voltage source). This path can be a resostor as high as 1E12 ohms.
Jan 23, 2015 #4 P panda1234 Full Member level 2 Joined Jan 22, 2015 Messages 125 Helped 4 Reputation 8 Reaction score 4 Trophy points 18 Activity points 1,172 Thanks,I have another question:in spice simulation how i realize what's the direction of current?
Jan 23, 2015 #5 erikl Super Moderator Staff member Joined Sep 9, 2008 Messages 8,108 Helped 2,695 Reputation 5,370 Reaction score 2,305 Trophy points 1,393 Location Germany Activity points 44,123 Re: Current direction in simulation Generally currents "flowing" into a device are counted as positive ("added, +"), currents out of a device are negative ("subtracted, -").
Re: Current direction in simulation Generally currents "flowing" into a device are counted as positive ("added, +"), currents out of a device are negative ("subtracted, -").