sng2024
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Hello, I recently purchased an AD3 and am learning to use it. One of the "limitations" I have come across is the voltage capability both in generating and in measuring of anything greater than 5V. What will I need to be concerned with if - 1. I have a circuit requiring voltages in the order of + and - 15 to 25V or even higher and drawing large currents 2. I need to measure such voltages and currents (dc and ac) The circuits will be supplied externally by their own power supplies and input signals will supplied by external sources and these easily exceed the 5V limit. A x10 probe could probably assist in the measurement, but, is it possible to setup Waveforms to automatically do the divide by 10 for every input? Irrespective of the math ability, I would be concerned about the voltage levels should any of the ports come in contact with the high voltages. How can I isolate the AD3 in such an environment? Am I making sense and am I expecting too much? Thanks.
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attila reacted to an answer to a question:
WaveForms, AD3 and Scope Trigger
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You are absolutely correct. I discovered the loose contact at the connector itself. Thanks a lot.
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Hello everyone, I guess I was a little premature in posting the above. I disconnected the AD3, quite WaveForms and tried again. It worked this time. I guess the issue is the stability of the AD3, the USB connection and the ability of WaveForms to synchronise with everything. Any thoughts? Thanks again.
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Hello all, I'm new to this forum having just purchased an AD3 to mess around with and hopefully learn something! I set up Wavegen to output a sine wave to a resistor in series with a diode exactly like in the attached image (but with a 1k resistor and a 1N914 diode). W1 is set to output a triangular wave 5Vpp without any offset. I then set up the scope as in the second attached figure with an XY display. The XY display does not look like a normal diode IV curve. So what am I doing wrong? When I add a Math channel as in the next attached figure, I see the same problem. Again what am I doing wrong? I've tried different diodes and received similar results. Thanks.
