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Search found 6 matches

by parth.jinwala
May 29th, 2017, 9:14 pm
Forum: 2400 Series SourceMeter
Topic: Issues faced in measure voltage/source current mode when range is changed
Replies: 9
Views: 27166

Re: Issues faced in measure voltage/source current mode when range is changed

Just an observation I made today. I am using 2420 in meas V/ sink I mode. I observed my circuit getting clamped at 21 V when I changed current range from 100 mA to 1 A. (21 V is the max compliance I can set in 20 V range). But just as I increase my 20V range to 60 V range, and set the compliance vol...
by parth.jinwala
May 28th, 2017, 9:40 pm
Forum: 2400 Series SourceMeter
Topic: Issues faced in measure voltage/source current mode when range is changed
Replies: 9
Views: 27166

Re: Issues faced in measure voltage/source current mode when range is changed

If your circuit is inductive, or behaves like an inductor, a step in current will cause a voltage spike, V = L * di / dt. The range change can be thought of as a step in current. The derivative of a step is an impulse. The impulse can be high enough to trigger the voltage compliance detection. I ha...
by parth.jinwala
May 26th, 2017, 3:29 am
Forum: 2400 Series SourceMeter
Topic: Issues faced in measure voltage/source current mode when range is changed
Replies: 9
Views: 27166

Re: Issues faced in measure voltage/source current mode when range is changed

Try increasing the voltage compliance to see if that cures the problem. The range change behavior may contribute to the compliance issue. I increased the compliance. Problem is cured now. Range change doesn't affect my circuit. I am still curious as to why compliance has any effect on range change?...
by parth.jinwala
May 25th, 2017, 9:40 pm
Forum: 2400 Series SourceMeter
Topic: Issues faced in measure voltage/source current mode when range is changed
Replies: 9
Views: 27166

Re: Issues faced in measure voltage/source current mode when range is changed

Thanks a lot Mr. Smith I would try that.
Can you tell me how much time does the relay take to perform the resistor substitution and output gets stabilized again. Approximate (max) value?
Thanks.
by parth.jinwala
May 24th, 2017, 5:16 am
Forum: 2400 Series SourceMeter
Topic: Issues faced in measure voltage/source current mode when range is changed
Replies: 9
Views: 27166

Issues faced in measure voltage/source current mode when range is changed

Sir I am using 2420 SMU. In measure voltage and source current mode (actually I am sinking current) whenever I change my current range from 100 mA to 1 A range while keeping the current same, SMU clamps (reaches the voltage compliance value set). The compliance value is higher than the voltage expec...

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