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Choosing a DC electronic lab for home lab
Sariel:
Hello everyone,
I'm currently exploring options to upgrade my lab setup with a DC electronic load. The primary purpose is to assess the performance of linear regulators that I integrate into my designs. I'm on the lookout for a reputable brand offering good-quality DC electronic loads within a budget range of $500 to $2000.
The desired specifications include a voltage range of up to 150V (although 40-80V would suffice), and a power range of 50W-150W. Additionally, I need the capability for transient testing (Dynamic). It's essential for the device to feature an output current monitor, and while computer software control would be a nice-to-have, it's not mandatory.
I've narrowed down my choices to the following models:
IT8500G+ series
BK Precision Model 8550
TTI ld400p
If any of you have hands-on experience with these models, I'd greatly appreciate it if you could share the pros and cons of each, along with your recommendations. Alternatively, if you have suggestions for other reliable devices that fit the criteria, I'm open to exploring those options as well.
Thank you in advance for your insights!
nctnico:
I'd add the Korad KEL2010 to the list. After long pondering, I settled on this model. But I would have liked to try the Tonghui / BK Precision 8550 load but that wasn't available at the time I wanted to make the purchase.
Some interesting discussions here:
https://www.eevblog.com/forum/testgear/dc-load-korad-kel2010-or-tonghui-th8402a/msg4969006/#msg4969006
Sariel:
I've conducted additional investigations and gathered more information regarding various electronic testing devices.
The TTI LD400p has been reported to exhibit a sluggish loop response and is susceptible to oscillations, impacting its performance negatively.
The BK Precision Model 8550, identified as a rebranded device, is known for ripple noise originating from its internal transformer.
In light of these findings, I explored alternative options:
GW Instek PEL-503-80-50 - $1,300
* Well-constructed and appears robust.
* However, lacks a PC control graphical user interface (GUI).BK Precision 8600B - $1,290
* Compact form factor, addressing the usual depth issue associated with DC loads.
* Includes PC software control.I am curious if this particular series is a rebrand of another device.
IT8512G+ - $876
* Compact size.
* Presumably equipped with control software.It's from ITECH, but further information on its performance is needed.
I am seeking insights from the community:
Among the mentioned brands, which one is considered the best?
Does anyone have practical experience with any of these devices?
mawyatt:
We have a SDL1020X-E "augmented" to 300W. We've mistreated and overstressed this EL with inductive kick back, reverse polarity, even Over Current (30 amps), Over Voltage (150V), and Over Power (300W) so often, surprised it hadn't given up the "magic smoke" long ago >:D
Tough little puppy, that's a tribute to the robust design and build. Only real complaint is with the input connectors (lack of Banana type), however there's a $10 simple replacement terminal when we get some time.
Best,
tautech:
--- Quote from: mawyatt on November 24, 2023, 06:27:29 pm ---We have a SDL1020X-E "augmented" to 300W. We've mistreated and overstressed this EL with inductive kick back, reverse polarity, even Over Current (30 amps), Over Voltage (150V), and Over Power (300W) so often, surprised it hadn't given up the "magic smoke" long ago >:D
Tough little puppy, that's a tribute to the robust design and build. Only real complaint is with the input connectors (lack of Banana type), however there's a $10 simple replacement terminal when we get some time.
Best,
--- End quote ---
Yep, these:
https://www.aliexpress.com/item/32793961677.html?
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