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Altera_Forum's avatar
Altera_Forum
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17 years ago

Stratix II: Coil circuit

I am trying to create a very close range wireless communication using stratix II fpga. I want to achieve that using coil - coil communication. So I connected coil1 to fpga1 with a series resi...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

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It's not clear to me, in which regard transmitted power is relevant for your application. Although the coil is a reactive load, part of the power feed is consumed by losses, a part is transmitted to the secondary and a small part is radiated. The general limits for radiated emissions correspond to a few µW RF, to give you an idea of the order of magnitude.

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Thanx for the clarification.

I need to measure how much power I am transmitting to try and improve my communication distance. In addition, I will be asked how much power I am transmitting and I need to know how to answer! lol!

Could you tell me how to know the power I am transmitting? Its not simply multiply the current going into the coil by the voltage around it, on the resonance frequency, Is it?