Hi,
I was wondering if anyone could help me.
I've got a project where I need to monitor the current consumption of a laptop, but I dont want to cut the laptop wire.
I've looked at non-contact methods, but they leave a lot to be desired when my dynamic range is 0-3A, but I also need mA resolution.
I've built a circuit up using the same op-amp (MAX4238) Dave uses in the uCurrent and my circuit works like a dream - only I have to bodge the connections to the jack and laptop.
Does anyone know of a DC extension lead that I can cut for my circuit? The laptop is a new HP Probook with the 3 conenctions on the DC jack (power, ground and a data connection for identifying the charger).
Thanks in advanced,
Steaky