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agaelema

Waveforms - changing the voltage on one wavegen channel affect the other channel

Question

Hi,

I was using the wavegen to generate 2 sine waves and noted one weird behavior.
- when I changed the amplitude of one channel the other channel also is affected (amplitude and phase)

Before change (2V on each channel)
2144335767_test01.thumb.png.64ef7e9021b41852aee461504bbc3ed2.png

After change (3V on each channel)
1944879728_test02.thumb.png.225d175142264a1d5091db65dffcda23.png

The same behavior occurred on the last stable version and beta version (3.11.4).
 

Thanks

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Hi @agaelema

Could you describe your wiring?

Here W1 is connected to 1+, W2 to 2+, 1- and 2+ to GND.
In the second screenshot the W2 amplitude is changed from 2 to 3V

image.png.ee51c90e77d496b68d12c3054b9e27e3.png

image.png.95e6f0c95d220caac14fd0fd188fda81.png

 

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Hi @attila,

The wiring was is the same, but I'm using the BNC adapter.

I was doing some tests and taking some screenshots and I noticed that this behavior occur just when both outputs are connected to the circuit, an inverting summing amplifier, like in the schematic. I'm doing this to generate a third sine wave, like a three-phase system.

schematic.thumb.PNG.0f9a1466136eba38313e3f837d02c5df.PNG

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