spectrum
Member
hi all,
(sorry, circuit is in a second step edited for corrections)
https://www.electro-tech-online.com/attachments/diagram-png.16724/
i have the circuit as attached, there is an antenna (coil) that transmit a 125Khz carrier, in resonance conditions. The signal have 200Vpp amplitude on the coil. It is a serial resonance circuit.
My need is to have a voltage Vpp near 2,5V as Vout, without cousing problems to the antenna, and i'm really wandering how to calculate this values for R1 and R2. Then i will need to rectify the wave, and give a pulse positive wave to an op amp.
C is about 160pF and L(antenna) have a 12 ohm resistance measured, and should have 4.05 mH as value.
I just need an help about how to proceed, don't need no calculations or circuits done. Just would like to learn with some help what is difficult to learn from the books.
Many Thanks, angelo
(sorry, circuit is in a second step edited for corrections)
https://www.electro-tech-online.com/attachments/diagram-png.16724/
i have the circuit as attached, there is an antenna (coil) that transmit a 125Khz carrier, in resonance conditions. The signal have 200Vpp amplitude on the coil. It is a serial resonance circuit.
My need is to have a voltage Vpp near 2,5V as Vout, without cousing problems to the antenna, and i'm really wandering how to calculate this values for R1 and R2. Then i will need to rectify the wave, and give a pulse positive wave to an op amp.
C is about 160pF and L(antenna) have a 12 ohm resistance measured, and should have 4.05 mH as value.
I just need an help about how to proceed, don't need no calculations or circuits done. Just would like to learn with some help what is difficult to learn from the books.
Many Thanks, angelo
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