Hi all,
I have developed a circuit board which is powered purely on the magnetic field generated by my phones NFC antenna. Using this method I am storing the energy from the magnetic field in a capacitor and I am able to achieve up to 3.3V. However I have found that when active the NFC in my phone generally only chargers the circuit after it has first detected it as a tag. From what i can tell the field strength is very weak when polling for a tag and is only strong for a short time after it detects a tag and is in the process of reading the tag. Is this a correct analysis of how the NFC behaves in android phones (i assume this is to conserve power when polling g for tags) and is there a way to hack the phone to always have the feild strength operating at max capacity?
For my application the phone is only active as an NFC reader for a product, as such the battery consumption and effect on other features of the phone is irrelevant.
I have developed a circuit board which is powered purely on the magnetic field generated by my phones NFC antenna. Using this method I am storing the energy from the magnetic field in a capacitor and I am able to achieve up to 3.3V. However I have found that when active the NFC in my phone generally only chargers the circuit after it has first detected it as a tag. From what i can tell the field strength is very weak when polling for a tag and is only strong for a short time after it detects a tag and is in the process of reading the tag. Is this a correct analysis of how the NFC behaves in android phones (i assume this is to conserve power when polling g for tags) and is there a way to hack the phone to always have the feild strength operating at max capacity?
For my application the phone is only active as an NFC reader for a product, as such the battery consumption and effect on other features of the phone is irrelevant.
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