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[Merged]: Measuring Reverse Leakage Current

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poachedpig

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I have this circuit, it's actually a differential rectifier.

15183887_10207341812055824_769654879_o.png

How do I measure the reverse leakage current of my PMOS if my input is in AC?

Is it possible to measure the leakage current directly on my circuit? Or do I have to characterize the MOS and use a testbench to measure the leakage?

I did tried measuring the current through the node drain, it seems a bit large. So I am in doubt.
 

Reverse Leakage Current of a Rectifier

I am trying to study the operation of this circuit,

Screenshot_1.png

I am trying to measure the REVERSE LEAKAGE CURRENT of my main mos, but I don't really have any idea how.

A friend of mine told me to use this testbench,

14971886_10207353998560479_1408196956_n.png

The only problem is that her circuit is of DC in nature and mine is a passive rectifier which is AC. Also, my MOS function as a diode. I am not sure if it is applicable to my situation.

I tried to measure the current through the drain node of my PMOS directly to my circuit. But it seems like it is pretty large for a leakage current. I assumed it was wrong.

Do I have to isolate my main mos and auxiliary mos to measure the reverse leakage current?
 

Re: Reverse Leakage Current of a Rectifier

Mark Eric said:
I tried to measure the current through the drain node of my PMOS directly to my circuit.
But it seems like it is pretty large for a leakage current.
I assumed it was wrong.
Click to expand...
It is not wrong.
That is a true result of your circuit.

Mark Eric said:
Do I have to isolate my main mos and auxiliary mos to measure the reverse leakage current?
Click to expand...
No.
Auxiliary PMOS is no more than bias circuitry to feed bias voltage fo gate of main PMOS.
 

pancho_hideboo said:
It is not wrong.
That is a true result of your circuit.

No.
Auxiliary PMOS is no more than bias circuitry to feed bias voltage fo gate of main PMOS.
Click to expand...

If I understand it correctly, the subthreshold leakage current is the current flowing from source to drain. So I assumed that I can measure the leakage current from the current flowing from the drain.

**broken link removed**

I wanted to measure the leakage current in a single cycle where the mos is in off state, with respect to time.

plot.png

Just like in the plot above. Am I still gonna use Transient analysis for this? (sorry, I am not familiar with the rest of the tools)
 

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