> I’ve also used LEDs as makeshift reference diodes in the past. Hahaha I did this for some BJT amplifier biasing once. Some red SMD leds I had were the perfect voltage when fed with a 10K resistor.

In production, this may be replaced with a zero Ohm resistor. The open circuit protection circuit shown utilizes R9, causing it to serve an additional function, in conjunction with Zener diode D2. In ...

A perovskite photo diode that becomes a viable LED when its bias is reversed has been created at Linköping University in Sweden, allowing bidirectional communication between two identical devices. “We ...

Jenny, I love this series, but paragraph 4 of the common emitter biasing discussion should say, “In an NPN transistor, the connection between base and emitter is a PN junction, so as you might ...

Diode biasing exhibits only a 2-mV/°C drop in voltage with increasing temperature from 0°C to 100°C. ... In this circuit, a J309 or IFN152 JFET is the most suitable device, ...