use your own current transformer with a U nail ....
What is a .................U nail ?! A heavy duty staple - like a fence staple?
Exactly... with thin INSULATED [enamelled] copper conductor about 1000 turns....
I would not like to do the winding!
If you give it to a full wave bridge rectifier you will get nothing... because the Turn ON voltage for diode is 0.7... first of all you have to amplify it and rectify with a opamp based precision rectifier... you want to give this into MU but for what???
hi
check the specification of the CT. the voltage will be specified in it
and ya rectify that voltage and by using some filter capaciters you ll get a Dc voltage
i would still recommend to use a A/D convertor module in the PIC because even by using a bridge rectifier there will be some ac riples.
To motivate others to answer your question, you should use a more intelligent way, not so obviously violating forum rules...May anyone reply on this...
Thread bumping is not allowed
Don't bump your thread with useless followups like “please help” or “no one” etc. and don’t be in a hurry to get a reply, be patient. If you have any additional info to provide (like results gathered after the posted question or additional info) then you are welcome to post them in order to explain better your problem.
I need to give signal to another motor to actuate it, depending on the ampere taken by main motor.
So how to utilize the output of the CT... Can you please elaborate it in detail... Because what I am not having much knowledge of how to apply it...
Regards...
In contrast to previous comments, I'm sure that a passive bridge rectifier, before the secondary shunt resistor, will work with a lot of industry standard current transformers. You get a certain non-linearity due to the diode voltage drop, but it can be easily compensated when chosing the analog threshold values. You have to review the CT datasheet for possible output voltage, or calcuate it if you made it yourself.
So the circuit would be comprised of
CT, secondary winding to bridge rectifier AC in, rectifier output to RC parallel circuit (shunt + filter).
CT secondary floating, rectifier minus grounded. Rectifier/RC plus to µC ADC input, through series resistor to protect against input current overload.
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