always(at)smart said:I think it's possible.
ou may use feedback circuit to compensate the process variation.
regards,
smart
always(at)smart said:the process compesation technique is application depandent.
For an simple example: A voltage regulator which can regulate the stable output voltage at all corner.
you can probably post your circuit, without knowing it, it's hard help you.
regards,
smart
always(at)smart said:hi jutek,
ok, let's stick with the case when vdd=1.3v.
so in this case the vout = 0.8v, RL=8, so the driving current is 100mA,right? I think it just make sense to me, it need such a big size to current for so much current. Otherwise, if you decrease the size, the pass transistor will enter linear region.
I do not see it is a problem.
regards,
smart
always(at)smart said:Hi Jutek,
Pls label the signal.
One thing i can see from the waveform is that the phase margin is not well compensated yet.
Another thing is : why you call it corner? corner supposed to be simulated accoss all the PVT. or you meant something else?
regards,
smart
ipierre said:one question, Why dose Green signal show voltage drop?
Is it a supply voltage? forcing 1.3v at VDD?
smartdream said:Hi Jutek, I believe the last plot you shown is correct, and I guess the Green line is FF corner @125C, and the beige is SS corner @ 125C (I think SS 125C is the worst case under all conditions for LDO case), is that right? dear friend.
good luck.
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