Related to testing a bad kit. Is there an easy way that I could test my bad kit, and the new kit once I receive it to determine if it will also fail? I have a volt meter but am not sure if I would need anything else.
Hi Ty,
The issues don't show well on an ordinary multimeter.
Speaking of the specific issue I've encountered the regulation under light load generally works ok, but then fails under a heavier load.
You could try measuring the output with your multimeter to see if you're getting that higher voltage.
A sensible output would be 5v -0% / +10%
As said above testing under load is preferred...
If you're electronically inclined you could skip the resistors and got for a DC dummy load...
This is a great combo and will test most things USB...
Dummy load
Voltage / current meter
Having a handful of 10 ohm 10W resistors in a draw is also handy.
Using ohms law you can configure the resistors into different configurations to get different loads.
1 x 10 ohms across 5v will be a 500mA load (2.5 watts power)
2 x 10 ohms in parallel across 5v will be 1A load (5 watts power)
Recommend using a resistor of double the power you need to dissipate, or as
@wasyoingonce2 says above 4x is even better.
These will burn fingers if left powered long enough, also watch your work surface.
The dummy load is good as you can simply dial in how much current you want to burn and it controls it's own fan.
Also doesn't burn the desk, but will still get warm.
Ultimately, the best tool is an oscilloscope, but a decent starter unit is in the USD $400 ballpark.
The Rigol DS1054Z is still a worthy contender.
v81....do you want to part with a HK3 to me?
Have we already communicated via email?
If so feel free to email me again else PM me to exchange details.