ADC voltage meter on coil receiver

Hello! I'm working on measuring the voltage by ADC on the coil that is connected to the PCBA. There is 5V and 1A in the output so the current is too high for an ADC from an Arduino Nano or any other ADC available such as ADS1115. How can I reduce the current or separate voltage to measure it?

Have a look at ohms law !!

Devices take the current they need.. having said that can you explain the project a bit better in case you are taking about a current transformer , which need burden resistors to generate a voltage from the current

What is a coil receiver ?

Of course I can explain that I'm working on a project about positioning an RC car relative to a wireless charger. In the RC car, I will install a coil receiver and the car will move on the Qi standard wireless charger. I want to measure this voltage between coil receiver mounted on car and Qi standard wireless charger by ADC.

This is a coil receiver which I use in this project.

The voltage on the coil is an AC voltage. Keep in mind that applying negative voltages to the input of an ADC will usually destroy it.

You need to reduce that magnitude of the voltage, using a voltage divider, and for a 5V ADC, apply a 2.5V offset so that the signal is between 0 and 5V at all times.

Or, just use your multimeter.

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.