The solution is simple: insert a small valued resistor in series with Q2’s base. Will this change the current limit setting? Calculations showed that a 220 ohm resistor in series with Q2’s base ...

Another circuit for hot-swap applications (Figure 2) uses a pnp transistor (Q1) and current-sense resistor (R1) to provide continuous current sensing and limiting.

The simple addition of a transistor and resistor to the open-circuit drive overcomes this dilemma by limiting current through the drive transistor. Transistor Q2 provides the open-collector drive ...

To demonstrate the simplicity of such a component, [Eric] constructs a current limiting circuit using a JFET and feedback potentiometer then confirms the functionality on a curve tracer.

There are many cases where a power supply needs an internal current-limiter function, usually built using a current sensor, a control circuit, and a pass transistor. The current sensor itself can ...

Lesson 4 Using Transistors: Let’s Get Transistorized! Overview In this lesson, students build two circuits and explore how transistors function. Objectives • To observe how a transistor ...

The current limiting circuit, though, is where things get interesting. Rather than use an op-amp, [DiodeGoneWild] chose a simple discrete transistor current-sense circuit.

Now researchers have developed a new type of transistor that is 50 times more energy efficient than today's models. It is also the first to be developed using nanotechnology.

A transistor has been demonstrated that operates at low supply voltages by exceeding a theoretical limit. The finding opens up avenues to the development of integrated circuits that have extremely ...

In the past, several circuits have been described using asymmetrical transistors with switching drives which are symmetrical or asymmetrical with respect to the emitter and collector of the ...