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nor gate 7402 problem

mah

Member
i tried the attached circuit ,ir2110 low side output is same as high side . i saw it on oscilloscope. R13 got hot and burnt, i used the circuit without connecting the meter this is the only difference . supply to the circuit is around 10v also the pll isn't affected when changing resistor value on Vcoin pin as a test i grounded Vs which cause Ho to go low and Lo to go high.,
I checked the output from the nor gate and i found that they are high at the same time . so i think
the problem is in the nor gate what do you think is the reason?
 

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