I have to use my phone's NFC to turn ON another circuit or another system like zigbee or bluetooth. So far I have only shown how an LED glows using my phone's NFC. I used copper wire turns and connected an LED to it on a breadboard. What should I do next?

 

What do you want to accomplish?

 

My project is to design an NFC transceiver system for contactless applications. However, it is not too specific. I can use NFC along with other systems like bluetooth . I have to analyze data rates and power consumption at different distances.

 

how much current and power is required for NFC tags?

 

One RFID transponder chip needs 10 to 20 microamps in standby and 250 microamps when handling data at a high rate.

Check out this datasheet:
http://www.ti.com/lit/gpn/rf430cl330h

 

Can you suggest some NFC circuits for transmitter and receiver?

 

A final project from Cornell (13.56 MHz)

https://people.ece.cornell.edu/land...ll656_jw859/ll656_jw859/ll656_jw859/index.htm

Another final project from Cornell (181 kHz)
https://people.ece.cornell.edu/land/courses/ece4760/FinalProjects/s2012/xg46_jy363/xg46_jy363/

A project by an absolutely brilliant writer. (181 kHz)
http://www.cappels.org/dproj/minmassrf/Min_Mass_Wireless_Coupler.html

 

Can you help me.In the first one which NAND gates he uses in transmitter schematic?
I got it. Thanks.

 

I am making the circuit in multisim. Can you help me? Which crystal oscillator should I use?

 

A project by an absolutely brilliant writer. (181 kHz)
http://www.cappels.org/dproj/minmassrf/Min_Mass_Wireless_Coupler.html

A very helpful one as well.

 

The choice of a NAND gate is yours

 

Can anyone suggest an amplifier circuit for 13-15 MHz frequency?

 

Isn't this thread a violation of TOS? In particular the 'transformerless power supply' clause. The OP stated they are attempting to power an LED using energy from an inductor only on their breadboard.

I was informed that there is no 'grey area' or 'leniency' on this subject . If the TOS stated 'Non-MAINS-isolated power supply' instead, there would be no issue.

 

For the circuit, can the transmitter work without a micro controller?

 

@BobaMosfet I am glad you read the TOS and are paying attention. Since it is not connected to the mains it is not in violation of the TOS.

Yes, the output of the LM358 in the receiver circuit attached to post #14 (which is the output of the LM318)) can be used for data to as an on/off signal, such as blinking an LED or driving a relay, though to drive a relay you would require a transistor.