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New Keysight DC Power supply announced!

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2N3055:
Why are people thinking this is linear PSU ?

40/80 A

Noise:
Normal mode voltage, Vpp(20 Hz to 20 MHz) < 75 mV
Normal mode voltage, Vrms (20 Hz to 10 MHz) < 5 mV

That is switcher and it should be...

electr_peter:
Curved V/I limit curve (with same max power) suggests hybrid topology, i.e. switching pre-regulator plus linear output stage like R&S HMP series and similar PSUs.

J-R:
Temperature sensor in the connector is interesting.

Wonder why it mentions a range from 20Hz to 20MHz, as it seems it should technically be able to do frequencies below 20Hz.  Maybe they are just separating the specifications, or are they different operating modes?

Output is not bipolar?

2N3055:

--- Quote from: electr_peter on September 18, 2022, 09:53:41 pm ---Curved V/I limit curve (with same max power) suggests hybrid topology, i.e. switching pre-regulator plus linear output stage like R&S HMP series and similar PSUs.

--- End quote ---
No it doesn't. Switchers also do constant power trick. 80 A PSU is not going to be linear, and noise proves it..

nctnico:

--- Quote from: 2N3055 on September 18, 2022, 10:24:06 pm ---
--- Quote from: electr_peter on September 18, 2022, 09:53:41 pm ---Curved V/I limit curve (with same max power) suggests hybrid topology, i.e. switching pre-regulator plus linear output stage like R&S HMP series and similar PSUs.

--- End quote ---
No it doesn't. Switchers also do constant power trick. 80 A PSU is not going to be linear, and noise proves it..

--- End quote ---
I agree. It is nice to see though that Keysight brings this old concept back to life. In the HP days they used to have a whole bunch of these kind of supplies that have a power limit. It makes a PSU much more versatile. I have a pair of HP6012As which are excellent for when a lot of current or high voltage is needed (and the power limit is kind of a conservative estimate). Still, I would like some more modern metering though.

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