Sorry I didn't originally post the entire problem. I agree that this approach would be most helpful.
The overall application is an RFID reader. As of now, I am using an EM4095 IC, which drives an inductor and cap in an RLC circuit. My issue is that I need to increase the RFID read range, which I plan to due by increasing radiated power. Unfortunately, the EM4095 is already outputting its max operational current of .25A. In addition, the EM4095 has two voltage drivers, both operating 0-5v but in opposite directions, providing a p-p ac signal throughout the RLC circuit of 10 v p-p. Per my calculations, amplifying the power to roughly 5 times what it is now should be adequate.
The plan I originally suggested was to connect a transformer across the two voltage drivers, with the RLC components existing in an isolated circuit due to the transformer. I realize this approach brings up several problems:
- The transformer must be able to operate at 134.2 kHz
- The inductor's inductance is 2.8 mH, so preferably the transformer doesn't add too much inductance. I realize I can compensate by adjusting the cap, but the RLC circuit already has a high Q, and I don't want to narrow the BW too much.
- The current output from the EM4095 is dictated by the intrinsic resistance of the inductor. If I were to isolate the RLC circuit and step down the voltage, the resistance of the inductor would also have to be dramatically reduced in order to allow an increase in current in the isolated circuit
I hope I stated this clearly enough to help answer anyone's questions. Please feel free to ask more if anything is still unclear.
Thanks again for the help.