![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmu3ZtjbiJ9q5zva63790hxV6aQfP3-FNYtFtMyGnL5ZZBydX8pM_8DgB3BSrxKE6cJ2N36YC4ie7Nc4cVKxNhHfQG1oBXPY85NVQiBBLe8c-PyA5Q07jD0ms0c1K1Uh5ucHCvETr63wI/s640/diode+chart-2.jpg) |
These datasheets are available in a couple of different places. They were developed by Ben T. and Mike T. |
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiPB_P9v7Q4RBRqrQyqOnf37dip3OLBfo1Me8ahaFil2HHUgCufY2CW_yqXPFizVEG23KtXazY1ytRjaxi-Nn5ikQ8l-ehYVqYOAdGKKhB1RzPSzpQWDhmzamWpVWvQiTM-4JXvfEpYVuY/s640/diode+chart.jpg) |
They show a thing called Ideality factor or N on the chart. In theory 1.000 is ideal. Look at n and Ro. |
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhSYYk9jirhMXrDsnePqzbm6PiZt_ECJl5vfLEwaNld_fi06n5UaUUcaMlbNtyTJlSn0QniF5r1bpzT9QP7uMjNADZsKBnFumj8tOA4FBFrjYJsFIakf5DExeySs7hFGS0fun7ChG5Ilek/s640/DIODES+to+consider.jpg) |
I did a little cut and paste to isolate the diodes we have been using in out sims. |
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Using Avago's design program to compare n at 1,2,3,4
If you compare 0db you will see n=1 is the highest output. Looking back at the chart you can see the BAT46 has n=1.1 and the IN34a n=1.3 yet the 1N34A output soars? Look at Ro. The 1N34A is 35 - 40K while the BAT46 is 175-100K. Could it be the lower Ro? Look at the D18 with Ro of 160-170K it soars?
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgA6HWhPsXLtPw6oGKpjFPWzG6RgGEUPIR3HKjtHyt_wTM58dkdqyUnq4mkoazVtpbWnpnQug5sDHL-_Z1zzeNeHzC_KhMoFCuPR593NYdRj1XnDGGsYBLZ90iVBomNfJGmR2xGsfOSVZI/s640/Lowered+secondary+to+see+effect+25uh.jpg) |
So that brings me back here. I put reference at L2 - L3 and measure to the other end of the coils and then to ground. The output is = the voltage across L2 & L3. When R1 is about 40K the output peaks. Lowering R1 will lower the output but raising R1 has no effect on the output. |
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Food for thought.
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