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Help plez , IGBT (IR2110 ) driver problems

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ar3beid

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I use two ir2110 in my inverter design the input is square wave for the first and pwm for the other both of them appear to me on silly scope before I put them for the ir2110s
but when I put the two signal in the ir2110 input there is no signal in the silly scope and surely there is no output for them as long as the signal for their input is non .
I wonder should I amplify the two signals (square and pwm ) before I put them in the ir2110 or I have something wrong ?
please explain for my in details I am still bargainer in this field .
this the circuit I use IR2110 - 3.png
 

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