Electronic Load Testing (Round 1)

It’s time to test our prototype electronic load! Let’s find out how well this little circuit can perform.
Today we’re testing regulation performance and Power Handling with the Current Regulation Mode!

#Teensy #Electronics #Arduino
Next topics: Power and Resistance Regulation
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[normallyopen]

Hooray! New video =) My notifications are still broken. Looks like email things are going away on youtube.
Can't wait for more content. The talking head videos IMO are a nice addition, talking through the design process etc,
in smaller portions. Keep people in the loop, rather than large breaks between content?

Thermal considerations are my main concern with load design. Challenging to dissipate any meaningful amount of power without many "RU" 's of equipment, or water cooling. I'm hoping figuring out a distributed design can make higher power dissipation easier.. Kind of makes density hard, as well as perhaps transient response issues. I like the idea of paralleling them.

I've also been thinking about using power resistors in conjunction. It increases the lowest voltage you can sink and still have control, but means less active devices one has to control.
i.e. 100W 0.005-1 ohm resistors =P Might help with linearisation, but higher frequency could be affected. I'm yet to hook up my LCR meter to my cheap ones =)

I like the CPU cooler idea. I have a bunch of proprietary CPU cooler pulls from desktops. (i.e. before 115x, where a lot of the larger pre-builts run the standard offset/mounting). Lazily using gravity and thermal paste alone as a temporary cooling measure =P

I think the issue would still be trying to get >100-150W out of a CPU style cooler. Sounds like that'll be sufficient for the purposes for this load though.

[FixDaily]

Wondering, if you add a bridge rectifier to the output, you might not need to consider the probe's polarity on each appliance, am i not considering something? (besides a 1.4V drop voltage - well you can use mosfets)
Question: Do you have temperature sensors to shutdown the output when things get "nuclear"? ( as you say :D )
Also you can use temperature sensors to reduce the errors, since temperature affects the readings.
Having a computer cooling system will also allow you to use watercooling, this way you can increase to its limits, let's make some boiling water :)

[jogomeza]

¿Dónde hiciste la tablilla de circuitos? ¿Con los chinos?