Bordodynov
- Joined May 20, 2015
- 3,177
I'm using LTspice. I designed the DIAC DB3 model myself. I made a model of a symmetric NPN transistor that takes into account the avalanche mode. The model has parameters that allow to model other DIACs.
unfortunately the ac source is grouding (no floating ) i measure the resistance between output and 0 and was a few ohmsWith those connections CH1 should be X and CH2 should be Y on the 'scope display.
I am not sure what you mean by '0'. If this is the centre tap of the transformer then a few ohms is expected.i measure the resistance between output and 0 and was a few ohms
ok... if it possible make a schematic of measurement thank you very muchI am not sure what you mean by '0'. If this is the centre tap of the transformer then a few ohms is expected.
To check if it is floating you should measure the resistance between the output and your 'scope earth clip. This should be high resistance or overrange.
The attachment doesn't show the power supply or any connections.like the attachmen file
Can you send me a shematic what resistanc emust be measured ? thank you very muchThe attachment doesn't show the power supply or any connections.
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