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about current transformation

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Abo_Ayat

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hiii all

my design depend on measuring, sensing and controlling the small current about (mA) my design builded by op amps, so must be the small current (mA) is converted to voltage.
how small current about (0.5 mA) measured and transformed into (microAmp)
to used for op amps..... or directly from (mA) to voltage for op amps....

i hope that i reached my problem to all.

:?:abo ayat
 

very thanks to VVV

please how to compare between sine wave and triangular wave (not DC value) to get pulses by using op amps..

please help me and very thanks for you
 

Siply feed the truangular waveform to one input of the comparator and the sinewave to the other. Just like you would do with DC, except now the triangle replaces it.
 

hii VVV

very thanks for this good informations:)

salam
 

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