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Recent content by amanpreetk

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    [AVR] hall effect sensor code for measuring AC current in avr

    I want to measure current in a 15 watt bulb when connected to 230 volts AC. Can anybody help me with the AVR code,calculations that I need to make in my code to measure AC current?
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    [AVR] current sensing through acs712-30a

    Thanks for your help. So can you suggest me a circuit so that I can interface my hall sensor with atmega16 to measure the above mentioned ac current?
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    [AVR] current sensing through acs712-30a

    I am using an acs712-30a hall effect sensor module for measuring ac current interfaced to adc of atmega16. I have taken load as a 15 watt bulb and my supply is 230v AC. Now, the problem I'm facing is that, I am not getting the proper value of curent. What all formulaes shall I use to get the...
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    hall effect sensors to be used for measuring AC current

    Hi, I want to measure around 40/50Amps .
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    hall effect sensors to be used for measuring AC current

    Is there any hall effect sensor available to measure AC current in a three phase system? I want to interface the hall effect sensor output to the ADC of my microcontroller.
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    [Moved] Connections of a transformer

    Thanks a lot for your reply,it realy helped me. Can you say anything,whether the transformer is single phase or three phase? And if it is single phase transformer,can I apply two phases to it? Or if it is three phase, can I supply it with two phase as input?
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    [Moved] Connections of a transformer

    Re: three phase transformer Hi, Yes I am talking about the same transformer.I got to know a few more things about the transformer. Today I tested my transformer using two of the phases as input, I got the output around 14 volts, And then next I supplied it with single phase supply of 230...
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    [Moved] Connections of a transformer

    three phase transformer What will happen if I supply two phase as input to a three phase transformer?And also when I connect single phase supply to the same transformer?
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    [Moved] Connections of a transformer

    Here it is,
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    [Moved] Connections of a transformer

    Thanks for your reply. What I did was I removed the same transformer from my circuit and connected it with my home supply of 230 volts single phase, now also it gave me 12 volts AC output? Can u tell me what type of transformer am I using?
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    [Moved] Connections of a transformer

    Hi, I need an AC output of 12 volts. I don't have any image of my transformer. I just have a circuit in which this transformer is being used with the three phase supply. So if I connect two of the phases to transformer input,will I get the output of 12 volts? And I just wanted to know the...
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    [Moved] Connections of a transformer

    How can I connect three phase supply of 415 volts to 12 volts through a step down transformer? I have a 3-input and 3-output terminal transformer.What are the various connections I need to make?
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    5 volt dc circuit without using transformer

    Hi, Thanks for the useful information. :) I tried making the above circuits but voltage output that I am getting is not stable, it keeps on increasing continuously. For eg. if voltage output in the beginning is 4.80 volts, it keeps on increasing to 4.81, 4.82 and so on... after every 1 or 2...
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    5 volt dc circuit without using transformer

    Hi, I want to make a circuit in which I need 3-5 volts supply for ADC of ATMEGA16 from the mains supply voltage of 230 volts AC.I am trying to make a circuit without the need of stepping down the voltage through a transformer.Is there any circuit that I can use for my convenience (a circuit in...
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    Opamp circuit to be used with Atmega16 microcontroller

    This is what I did..and my output does not reach exact 0 volts on input as 2.5v or 5 volts for 3.5v as input. And moreover if i don't apply 1k ohm resistor with the input voltage, the proteus gives error as - "Gmin stepping failed" , "Source step failed" and "Too many iterations with...
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