SneaKSz
Member
Hello guys ,
I want to make this circuit :
**broken link removed**.
But i wan't to know how it works first
.
So if you press the pushbutton(S1) there will be a basiccurrent so T1 will conduct. Now is my question Ie = Ic+Ib ==> Ic = Ib*hfe , so the collectorcurrent has to be constant.So there will be a constant Collectorvoltage , so the capacitor will charge.
After simulating this circuitry i saw that the capacitor is loaded exponential . i don't get this because Ic is constant. Why doenst it load lineair?
Is that because Vc reaches a point where it cant go higher so the voltage will be constant so C will load exponentially?
Thanks
I want to make this circuit :
**broken link removed**.
But i wan't to know how it works first
So if you press the pushbutton(S1) there will be a basiccurrent so T1 will conduct. Now is my question Ie = Ic+Ib ==> Ic = Ib*hfe , so the collectorcurrent has to be constant.So there will be a constant Collectorvoltage , so the capacitor will charge.
After simulating this circuitry i saw that the capacitor is loaded exponential . i don't get this because Ic is constant. Why doenst it load lineair?
Is that because Vc reaches a point where it cant go higher so the voltage will be constant so C will load exponentially?
Thanks
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