Clearly a bug

162

02:32:37

I cannot describe it otherwise. Missing voltages and lots of nonsense in this simple monostable momentary switch setup.

published 8 years ago

hurz

8 years ago

And were do you see a bug in this circuit, or do you see whats different? http://everycircuit.com/circuit/4866186561191936

bit2man

8 years ago

@hurz does it count for you? I get to 1 at best and no more.

bit2man

8 years ago

@hurz and no, I'm definitely not able to spot the difference, other than yours do pull "out" to low which mine doesn't. But I cannot see the difference in components etc. I'll look at it again tomorrow. I've built this and it works just fine, and since I didn't see current go down all 3 resisters I'm loosing hope that this simulator can help come up with solutions or solve challenges for me. For now, the breadboard has won several times.

WTFCircuit

8 years ago

It isn't a bug, it's oversampling, in other words, the simulation is so slow that it will take minutes or even hours to complete. The problem is that if you slow down the simulation you will go into subsampling, because the trigger pulse is too fast to be elaborate. So what hurz did was to make a faster monostable, which demonstrates this is not a bug, but a different problem

Robert_Kidd

8 years ago

EC 555 sim is not perfect. Remove connection to discharge pin. Add two resistors in series across supply rails. Top one 10k, bottom one 20k. Join junction of resistors to discharge pin. Now see it work.

hurz

8 years ago

The circuit is completely correct as it is. Nothing needs to be rewired. @WTFCircuit 😘👍

bit2man

8 years ago

@VTFCircuit so I'm clearly not seeing where he did that. Even the simulation speed is the same? Where exactly is the difference? And btw. if I just change the PS on @hurz it goes into exactly the same state as mine. I understand what you're saying - I just don't see where i can adjust the setting.

WTFCircuit

8 years ago

He only changed the 100uF capacitor to 100nF, this is to speed un the simulation since a 100nF cap charges way faster than a 100uF cap, it is to show you that the circuit is running perfectly without bugs

bit2man

8 years ago

Thanks for clarifying @WTFCircuit

hurz

8 years ago

Upps, were is the "clearly bug" gone?

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