Of Current Frequency

A project log for ViaConnect Circuit Board Test Tool

Have a via on a circuit board that needs to be tested, but can’t or don’t have a connector? just use the ViaConnect.

David SpindenDavid Spinden 05/18/2016 at 03:210 Comments

Two goals of this project are:

*20MHz frequency at min.
*100mA min. current capability

I tested the 100mA requirement with a 42 Ohm resistor and a 5V power supply. I am happy to report that it could handle 120mA without any issue. I am sure that it can handle more, just was short on time yesterday.

The 20MHz frequency requirement is beyond any test equipment that I have at home. I was able to test 200kHz with a Tsunami Arduino board and my TPI 185 multimeter (it maxes out at 200kHz). I hope to test it at work, but for now, I can say that it will do basic PWM out of an Arduino.

Making progress...

Update, one day later I was able to borrow a frequency generator and an oscilloscope to verify that a 20MHz sine wave can make it through the TE contact!

Mission accomplished!