I am writing this post to ask you about tunnel diodes. I am doing my Phd and want to use them to my new project but as far as I managed to search the internet they are hard to find.
What I want to obtain is the curve of tunnel diode as you can see in the first picture. It can also be a parabolic (sine) curve as you can see in the second picture, but then there is a need of substitution of tunne diode.
How to substitute tunnel diode by using simple electronic devices such as : transistors, diodes ?
I have read in one article:
Now, says Tek's John Rettig, "we have better technology to get flatter steps for roughly the same speed. We use a switch made of two Schottky diodes back to back. You drive current into a base line, then, as quickly as you can, you switch currents out of a front diode and into a back diode. And since you cut off to zero volts all the time, there is no thermal associated with the switch." The tunnel diode generated heat, Rettig points out.
What does it mean how the circuit will look like ??
Do you know maybe there are some sources from where I could obtain tunnel diodes ?
Maybe you have some and you no longer need them?
I would be really grateful if you could help me with this.
Thanks in advance