EDN

Seemingly Simple Circuits, User-Proof External Supplies: Circuit 2, The Improved One-BJT Current Limiter

The improved one-BJT current-limiting supply is not much different than the primitive circuit, though its one additional resistor does change the circuit behavior. The improved circuit is shown below.
Engineeringness on MSN

Transistors Explained: Switching and Signal Amplification

This video explains how transistors work as switches and amplifiers in electronic circuits. Transistors control the flow of ...
Electronic Design

Simple Electronic Lock Uses Single-Transistor Circuit

A very simple but highly efficient combination lock circuit is shown in the figure. Any type of on/off switches can be used, varying from commercially available inexpensive types to more sophisticated ...
Hackaday

New Bismuth Transistor Runs 40% Faster And Uses 10% Less Power

Recently in material science news from China we hear that [Hailin Peng] and his team at Peking University just made the world’s fastest transistor and it’s not made of silicon. Before we tell you ...
EDN

Seemingly Simple Circuits, User-Proof External Supplies: Circuit 1, the Primitive One-BJT Current Limiter

Ordinary power supply design includes current limiting as a protection feature. In product design, this is usually sufficient in that the engineer decides the loads on the supply by design. However, ...