Review and Teardown of a Topshak LW-3010EC Programmable Power Supply

[@KerryWongBlog]

Please turn off "Stable Volume" in the video playback setting (the first menu item after clicking the gear icon) as for some reason, this new KZbin playback feature made the video much noisier than usual.

[@Brian_Of_Melbourne]

Diappointed not to see a test of the constant current mode, as distinct from over-current protection. Or does this unit not have a constant current mode? I also note from the pictures that the front terminals are connected via wires to the main board. Perhaps the voltage drop on these wires is the cause of the output droop, given that there doesn't appear to be any sensing at the actual terminals. Could you please measure this voltage drop while it is delivering 10 Amps to give us an idea of the reason for the droop.

[@SaraTommat]

Great visuals and teardown!

[@Nicoya]

Did you check to see if the empty RS-485 pins on the front panel board work? Maybe it just speaks a simple serial protocol over that.

[@ivanpiineda]

Great review, I have just bought this power supply and I noticed that the decimal dot is not moving to the left at the moment to measure current. There is any way to modify that?

[@schnibbelwind91]

Look at the resistor network on the logic board. I think there is no DAC. There is an digital potentiometer build by resistors and analog switches.

[@electronics.unmessed]

Hello, just joined! Good review, many thanks.

[@ZomB1986]

I hoped you would check if the USB connection appears as a virtual comport and if it undertsands SCPI. I'd be really interested in this power supply if I can control it with custom software.

[@Kevin_geekgineering]

you can it supports modbus, there are python libs for modbus not sure if there is a specific lib for this psu

[@thomasob42]

Great review. Can you show the internal structure of an orthogonal antenna (3 axis antenna). If someone out there already did then you might help share us the link.

[@rolandov2012]

HI, i search software control for this power supply.. do yo have this? thanks

[@telegualin7680]

Super ok prezentarea ! Respect!

[@legobuildingsrewiew7538]

I like your voice and talking speed. Its a very good rate of information per minute. Also very good thorough videos in general.

[@KerryWongBlog]

Thanks!

[@legobuildingsrewiew7538]

@@KerryWongBlog May I ask what your career experience is?

[@andymouse]

Great review, and yeah this is a much better use of that almost ubiquitous power supply board.....cheers.

[@jp040759]

Great review as always. THANX!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[@erikr007]

Since this supply is likely the same or similar to the Longwei LW-K3010D you might be interested in this fix to reduce the switching noise: kzbin.info/www/bejne/jarXdYWFos-KgbM

[@stevenspmd]

Ground up front and USB in back would be much more useful.