modified 8 years ago

Weird electric wave form thing

00:49:52

While running through the power source the current alternates with increasing intensity until about 20-30 mA where it abruptly drops back to less than 1 mA.  

The Voltage however, decreases negatively in steps of about -1 to -2 nanovolts that match the Amperage, though not all the time.  Sometimes it switches back and increases positively for a few steps before going back to decreasing.  

The lamp has an interesting effect while adjusting the voltage of it as it causes the current to stabilize slightly for a brief moment with each adjustment even though the current isnt running through it and it is not grounded on the other end.

It seems as long as the power source is running, the voltage will slowly continue negatively though it gets increasingly unpredictable as it goes as to whether it will jump up or down a nanovolt.

Adjusting the simulation speed has various interesting effects as well.

published 8 years ago

BillyT

8 years ago

Current sources are normally only used for special circumstances, capacitors do not pass DC current, but if you use a current source to generate DC current through a capacitor, (read infinite resistance, you will force the voltage to be infinite also) bottom line, don't do this.

tonyinselby

8 years ago

In real life a current source has a thing called its 'compliance voltage'; basically the highest voltage it can reach when trying to supply the required current. https://www.sunpower-uk.com/glossary/what-is-compliance-voltage/ The EC simulator doesn't model this, so if you try to supply a constant current through a capacitor, effectively an infinite resistance, it'll try to provide an infinite voltage, and Weird Things will happen.

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