Products > Test Equipment
Lab Power Supply Turn ON and OFF Characteristics
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KungFuJosh:
Here's the on and off characteristics of my v6.2 hw 3303X. As I mentioned in the other thread, there's no spike above the V&A settings when set above 30mA.

This is CH1. There's always a fast spike to ~29mA when the channel is activated.

Thanks,
Josh
KungFuJosh:
Similar performance with CH2.


Going back to my previous comment about Settings vs. Limits (since this is not actually limits that we're adjusting). I can set OCP to 30mA or whatever below the 40mA channel setting, and it will shut off the PSU output promptly after I activate it.

Thanks,
Josh
Martin72:
Peaktech 6227

8V, 40mA, 47 Ohm Resistor.
LeCroy WS3024Z, Siglent CP6030.

Very controlled power-on process. When switching off, you can clearly see that an electrolytic capacitor discharges at the output of the power supply.
Remedy: mechanical switch between power supply and DUT.
radar_macgyver:
Here are some plots from an Agilent U8001A. Load is 47 ohm non-inductive. MXO4 with RT-ZP11 probes. I set the voltage to 15V, with various current limits. At 500 mA, the supply was in CV mode, all others were CC. I toggled the on/off switch rapidly to see both rise and fall slopes. I noticed a glitch would sometimes show up, I captured one on the 500 mA setting, though it did happen at others too.

It seems quite well behaved, but I think this PS had killed a board I was testing due to transients during CC/CV switching.

edit: sorry, filenames say '10V' but the supply was set for 15V.
thm_w:

--- Quote from: radar_macgyver on October 12, 2024, 12:08:52 am ---Here are some plots from an Agilent U8001A. Load is 47 ohm non-inductive. MXO4 with RT-ZP11 probes. I set the voltage to 15V, with various current limits.
--- End quote ---

But did you test the settings as specified in the OP... 8V and 40mA?
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