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urgent help neede in Simulation using PIC16F72 in Proteus 8

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linju

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i am trying to simulate on "overload alert for a transformer using voice circuit"- i am using a current transformer as current sensor which is connected to controller PIC16F72 in the hardware design for constant checking of current of a transformer and a voice circuit is used. Now while doing simulation using Proteus 8 , i dont know what to use instead of current transformer. for voice circuit i tried a buzzer. can any one please help to solve this.
 

Use a pot which converts I from CT to V in the range of 0 - 5V for ADC input.
 

milan.rajik said:
Use a pot which converts I from CT to V in the range of 0 - 5V for ADC input.
Click to expand...
can you please explain it in detail, is it like can i put a variable resistor instead of current sensor
 

Yes, When you use CT in hardware then you use a series resistor and take the V across this resistor and feed it to ADC input. So, I through CT is converted to V for measuring by ADC. In Proteus use POT HG model, wiper of POT connects to ADC input. Apply same V to POT which you get across the series resistor is the hardware CT circuit.
 

milan.rajik said:
Yes, When you use CT in hardware then you use a series resistor and take the V across this resistor and feed it to ADC input. So, I through CT is converted to V for measuring by ADC. In Proteus use POT HG model, wiper of POT connects to ADC input. Apply same V to POT which you get across the series resistor is the hardware CT circuit.
Click to expand...

thank you so muc. i will try it
 

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