1. I have to see ac main waveform across motor as shown in attached circuit.
2. Problem I see by connecting CRO in this way is that mains phase or neutral(one of them), is shorted with CRO earth, as in schematic.
3. I have to see what is the waveform across motor after triac.
4. I have looked on internet, people use isolated probe. But they are very costly.
5. What is correct way to see the waveform across motor
2. Problem I see by connecting CRO in this way is that mains phase or neutral(one of them), is shorted with CRO earth, as in schematic.
3. I have to see what is the waveform across motor after triac.
4. I have looked on internet, people use isolated probe. But they are very costly.
5. What is correct way to see the waveform across motor
Attachments
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