Search found 4 matches

by Harald Koenig
Wed Aug 04, 2021 8:21 am
Forum: Getting Started
Topic: PS 4444: Common-mode overrange ?
Replies: 4
Views: 2685

Re: PS 4444: Common-mode overrange ?

Hi Benno, thanks for your answer! I did not understand that these "ranges" are not only relevant for my signal (< 10 mV for 1A current = 12W power @ 12V) but also for the offset/bias(?) voltage. guess I have to talk with my electronics experts again;) reading the specs for the PicoConnect 442, the b...
by Harald Koenig
Tue Aug 03, 2021 5:40 pm
Forum: Getting Started
Topic: PS 4444: Common-mode overrange ?
Replies: 4
Views: 2685

Re: PS 4444: Common-mode overrange ?

measurement with 5V PS4444 supply and no USB/HDMI ground -- everything connected to the same 230V power hub btw.
measurement with 5V PS4444 supply and no USB/HDMI ground -- everything connected to the same 230V power hub btw.
by Harald Koenig
Tue Aug 03, 2021 5:35 pm
Forum: Getting Started
Topic: PS 4444: Common-mode overrange ?
Replies: 4
Views: 2685

Re: PS 4444 differential probe problem: "Common-mode overrange" ?

today I did many more tests -- and found "some constellations" where the planned measurement works well with no "Common-mode overrange". but still I do not understand root cause of my problem and how to really "solve" it, or why it's an issue at all with that DB9 differential probe for PS 4444 ?! de...
by Harald Koenig
Tue Aug 03, 2021 8:08 am
Forum: Getting Started
Topic: PS 4444: Common-mode overrange ?
Replies: 4
Views: 2685

PS 4444: Common-mode overrange ?

Hi, I'm new to PicoScope, trying to evaluate which PS is the right device for my needs. for testing I got a PS 4444 from other department where specs look good, but... I'm trying to measure current/power (200-500 mA) for a uC with 12V power supply, running measurements with 1+ MS for 60+ seconds. th...