Products > Test Equipment

Lab Power Supply Turn ON and OFF Characteristics

<< < (6/19) > >>

mahi:
Rohde & Schwarz HMP4040 (pre-facelift): 4-channel power supply with 32V/10A (up to 160W per channel, 384W total) - datasheet

Measurements with voltage set to 8V, current to 40mA and a resistor of 50 ohm.

Switch on:

#1 HMP4040 CH1 switch on - 1V/div - 50ms/div (*)
#2 HMP4040 CH1 switch on - 1V/div - 5ms/div (*) (**)

(*) I had to take 1V/div instead of 500mV/div because of the overshoot
(**) Due to the duration of the overshoot, it did not make sense to go shorter than 5ms/div, so no 100µs/div screenshot included

In CC mode I'm measuring 39.75mA with a recently calibrated Fluke 289 (average because it actually fluctuates between 39.6 and 39.9mA) while the HMP4040 indicates 39.9 .. 40.1mA.

Peak detect on the Fluke 289 measures 155.9mA at switch-on which is very close to what we can see in the oscilloscope measurements.

(the multimeter was not in-circuit during the oscilloscope measurements)

Switch off:

#3 HMP4040 CH1 switch off - 500mV/div - 50ms/div
#4 HMP4040 CH1 switch off - 500mV/div - 100µs/div

I did not see differences in behavior between the channels, so I've included screenshots of channel 1 only.

Furna:

--- Quote from: mahi on October 06, 2024, 07:10:34 pm ---Rohde & Schwarz HMP4040 (pre-facelift): 4-channel power supply with 32V/10A (up to 160W per channel, 384W total) - datasheet
[...]

--- End quote ---

Looking at the datasheet I realized this PSU has also sense wires; did you try using sense?

mk_:

--- Quote from: Furna on October 06, 2024, 08:19:11 pm ---
--- Quote from: mahi on October 06, 2024, 07:10:34 pm ---Rohde & Schwarz HMP4040 (pre-facelift): 4-channel power supply with 32V/10A (up to 160W per channel, 384W total) - datasheet
[...]

--- End quote ---

Looking at the datasheet I realized this PSU has also sense wires; did you try using sense?

--- End quote ---

for CC-testing?

sonpul:
RIDEN RD6006P
Siglent SDS1202X-E  50ohm resistor.

Furna:

--- Quote from: mk_ on October 06, 2024, 08:38:24 pm ---
--- Quote from: Furna on October 06, 2024, 08:19:11 pm ---
--- Quote from: mahi on October 06, 2024, 07:10:34 pm ---Rohde & Schwarz HMP4040 (pre-facelift): 4-channel power supply with 32V/10A (up to 160W per channel, 384W total) - datasheet
[...]

--- End quote ---

Looking at the datasheet I realized this PSU has also sense wires; did you try using sense?

--- End quote ---

for CC-testing?

--- End quote ---

In the analog world it doesn't  make any sense I know ... but in digital/software world it might.

Navigation

[0] Message Index

[#] Next page

[*] Previous page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod