H-Bridge output measurements

[PeterFW]

Hello!
So, since none of the cheap ebay modules do what i want, i have scribbled my own simple H-Bridge with two IRS2184 and a few IRL3803.

Now, i can not simply put the scope probes across the output and the supply is not floating.

So i would connect one probe on each output (two channels) and the GND clip to the GND point before the H-Bridge.

And... am i correct that it would be a bad idea if i were to connect a electronic load on the output? So i am limited to just a resistor to simulate a load.

Am i correct?
The whole thing just drives a resistive load at <12V with just 5A for now.

Greetings,
Peter

[danadak]

"And... am i correct that it would be a bad idea if i were to connect a electronic load on the output? So i am limited to just a resistor to simulate a load."

Yes, load should be R, L type load, not an active regulator load. If you tried the latter it
could be a constant current load, but its compliance range should be limited to H Bridge
component breakdown / safe area limits. And then not a polarity changing environment.

I may be mistaken on this but electronic loads normally do not regulate a switched polarity
environment ?

Regards, Dana.