weird comparator
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Pylon
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Sat Apr 27 2013, 12:56AM
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Registered Member #2065
Joined: Sun Apr 05 2009, 06:32PM
Location:
Posts: 26
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Lm393 acting a bit strange. It should give (open collector output) 0V or Vcc. But when difference between input voltages is not big, it gives about 1/2 Vcc. What could cause this problem?
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Pylon
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Registered Member #2065
Joined: Sun Apr 05 2009, 06:32PM
Location:
Posts: 26
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it works. Different resistance between + input and output, and better power supply. (there was 100nF near IC but it was not sufficent).
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