Transistors: the Transistor as a Diode

RE: Transistors: the Transistor as a Diode

clem57 — Fri, 24 Feb 2017 20:53:07 GMT

Let me recall what Atomic theory is https://en.wikipedia.org/wiki/Atomic_theory . Anything else is conjecture!

RE: Transistors: the Transistor as a Diode

D_Hersey — Thu, 23 Feb 2017 21:28:03 GMT

cto:

https://www.scribd.com/document/110168631/Nonlinear-Circuits-Handbook-Sheingold-Ed-1976

RE: Transistors: the Transistor as a Diode

DAB — Thu, 23 Feb 2017 19:21:00 GMT

The curve differences are probably due to the different level of doping in the semiconductor matrices.

Each device uses a different combination depending upon the application.

I do like your confirmation on the transistor curve of linear use. Might be handy to exploit this capability one day.

Good work,

DAB

RE: Transistors: the Transistor as a Diode

D_Hersey — Thu, 23 Feb 2017 17:06:53 GMT

They often use super-matched (inter-digitated) pairs for the log and anti-log amps, using one as the artifact and the other to null-out thermal offsets. One useful circuit that can be constructed (among other ways) from log-amps is an analog multiplier

RE: Transistors: the Transistor as a Diode

clem57 — Thu, 23 Feb 2017 16:06:20 GMT

Great idea to test a transistor as a diode.