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Having a Counter issue on a PLD, programmed from NI MultiSim

The PLD will need a clock to debounce the switch inputs. The clock may be already available locally on the PLD plug-in board (the little rectangular board). Let's call it the global clock. Many PLDs ...
Kuba hasn't forgotten Monica's user avatar
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Designing a current sensing op-amp circuit for an AC load

I've made a few changes, which I'll explain below: simulate this circuit – Schematic created using CircuitLab R7 should be the same as R3, otherwise you have a large common-mode gain, and the ...
Simon Fitch's user avatar
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Designing a current sensing op-amp circuit for an AC load

The VCC is only 5V, this means the CMRR is +/-3.5V. at times you have 12V on the positive rail. Either move the VCC up past 12V or move to a low side configuration. Low side is much easier to maintain ...
Voltage Spike's user avatar
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Amplifying op-amp thermocouple circuit

Take note of the red writing on the image below: - Same with this image: - This is your problem. You have positive feedback and all bets are off.
Andy aka's user avatar
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Amplifying op-amp thermocouple circuit

The circuit was rather badly copied from this PhD thesis (E5) : Sanderson, S. R., “Shock Wave Interaction in Hypervelocity Flow”, PhD Thesis, California Institute of Technology – Caltech, May 1995. ...
Spehro Pefhany's user avatar
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Amplifying op-amp thermocouple circuit

Edit: Just noticed, it looks like the first amplifier has the inputs reversed, the feedback resistor should be to the - input, not the +, as it is you have positive feedback which will cause the op-...
GodJihyo's user avatar
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