DC step up 9 to 18 volts

207

04:18:38

Something I tried for real

published 10 years ago

schmobi2001

10 years ago

Exactly what happened in my real experiment. Voltage did not raise to 18 volts. But in my tutorial it said, it should raise to 18 volts.

hurz

10 years ago

Run it at 10us/s simspeed and have plenty of time to observe.

schmobi2001

10 years ago

Hurz! You are right. So it just stays for a few micro seconds above 10 volts and then drops again. But it's supposed to stay at about 15 volts

schmobi2001

10 years ago

Is this a bug? When I increase the speed... Voltage drops. When decrease the speed, voltage rises.

schmobi2001

10 years ago

Tried it again in the real circuit. Voltage in voltmeter stays around 8.16 volts

schmobi2001

10 years ago

I built this again, but still no progress. Is anybody able to tell me, whats wrong? Start the circuit... Ok... Voltage rises. But as soon as you speed up simulation speed, voltage drops again. Why?

hurz

7 years ago

because if you speedup the simulation you undersample everything and the result is chaos or as in your case it just stops working. Check wiki shannon sampling theorem, this is also valid for any simulator or time discret systems

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