CSLA2CD Questions

NETMF & Gadgeteer
1

I’m trying to hook up a CSLA2CD Current Sensor to my Cobra to measure the amount of AC current through a wire, and I’m having trouble finding information on how to hook it up. Some questions:

  1. Do I need to use a voltage divider when wiring this? If so, what size resistor would work best?
  2. Since I’m trying to sense AC current, will I need to either convert this to DC (via a rectifier) or do an RMS calculation? (My hunch is, yes, I will.)
  3. Does anyone have a better idea to accomplish the same thing?

I’m asking a lot, I know, but after a couple days of digging and researching, I’m feeling overwhelmed. As a software guy, the hardware side seems daunting at times.

Thanks,
J

2

Google is your friend :slight_smile:

[url]http://scienceshareware.com/how-to-measure-AC-DC-current-with-a-hall-effect-clamp-.htm[/url]

The input to the ADC must be no more than 3.3V. Most likely you will need divider resistors. The size will depend upon the power supply voltage, and how much you will need to drop the voltage to get into the ADC range.

The output is DC, no rectifier needed.