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Siglent SDL1030X vs. Rigol DL3031A - Which is better?
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Martin72:
Which currentprobe did you use ?
TopQuark:
Martin has a sharp sense for test gear  ;D

New toy, the ZCP30 from ZLG (50MHz 5A/30A). Availability is quite limited, but it performs better than my expectations and is probably the cheapest current probe that can do 1V/A and 0.1V/A switchable ranges (1150 USD).
Martin72:
Don“t want to spam this topic here:
Maybe you can use your "old" thread for presenting your new toy... 8)

https://www.eevblog.com/forum/testgear/50mhz-40a-acdc-current-probe-for-800usd-(eta5540b)/msg3991376/#msg3991376
dougg:

--- Quote from: Martin72 on November 07, 2022, 08:45:30 pm ---Which currentprobe did you use ?

--- End quote ---

Two: a Fluke 80i-110s (bandwidth 100 kHz) and a Little Bee in its green mode (10 Mhz bandwidth). I needed to make a current splitter for the Little Bee since +- 5 Amps is its maximum. Used two strands of solid copper wire about 1.3 mm in diameter. Obviously I could have used a low valued resistor, say 0.1 Ohm, 10 Watts instead of the current probes. I monitored both Vin to the switcher and Vout to the DL3021(a) . The switcher (NCV81599) has all sorts of over-current and over-voltage protection that was being tripped by the current overshoot from the DL3021 when I toggled from 0.01 Amps to 5 Amps. I wanted to toggle (Toggle mode) from 0.0 Amps but Rigol adjusted that to 0.01 Amps!
dougg:

--- Quote from: TopQuark on November 07, 2022, 08:43:36 pm ---
--- Quote from: dougg on November 07, 2022, 12:14:58 am ---Just discovered my DL3021 has a horrible current overshoot during the first 20 microseconds when there is a large step in requested current, say from 0 to 5 Amps. Measured a peak of 8.56 Amps which was tripping out a DC-DC converter that I was testing. Rigol seem to acknowledge this problem:
  https://rigol.force.com/support/s/article/How-to-reduce-overshoot-in-DL3000-series-CC-mode-in-battery-testing
... but their solution doesn't help in my case. Could someone with a Siglent SDL1030X and a 'scope with a current probe do a similar test? I set my RD6018 at 8 Volts with a current limit of 15 Amps.

--- End quote ---

SDL1020X-E (hacked to 1030), 2.5A/us, 0.1A to 5A, power supply is RD6018. Looks fine to me

--- End quote ---

Attached is a similar test on my DL3021(a). The minimum pulse width on the DL3021 is 1 ms which is what I selected. The current is in blue, the voltage (at the DL3021 terminals) is in yellow. Notice the current overshoot to 8.32 Amps (should be 5 Amps) at the start of the pulse.
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