Electronic Load
Electronic Load
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I have never used an external load to test my power supply before Ericsson. I guess I never really stressed the regulators in my boards in previous companies, which might have lead to some problems down the road.
So, now I think it's always good to do these simple tests with load. If possible, I disconnect the real load from the device (like unsoldering a shunt resistor). If it's not possible to unsolder, you can put it in parallel with your load, but you might run into problems with your load. Solder a female banana connector on the positive and negative end of the load.
There are some different modes on the eload, I used mostly:
- Constant current - for common measurements on normal operation
- Constant resistance - better to see transients and inrush currents at start up - depending it will not be enough and it will be better to use a real resistance bank.
- Dynamic current - used for square waves. it's possible to set the rate of current per second on the rise/fall time, time on high current, time on low current, high and low current.
eLoad Datasheet: