The circuit in the figure shows a low-cost solution based on a transistor switch (Q1). The transistor is off under normal conditions, when the differential amplifier built around U1 amplifies the ...

Basic Load Switch A load switch is comprised of two main elements – the pass transistor and the on/off control segment. The pass transistor is most commonly a P-channel or N-channel MOSFET that passes ...

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 ...

A less expensive (but lower efficiency) bipolar transistor based pass switch circuit requires 3 additional parts (to boost the drive into the base of the transistor) but costs only about nine cents in ...

Q1 is a simple PNP transistor acting as a pull-down switch until C1 charges and switches off Q1. That should spin up the SATA drive and then surrender pin 11 for drive activity usage. Is this ...

You know them, you love them, you take them for granted – they are single push button on/off switches. As [Dino] explains in the most recent episode of his Hack a Week series, they are typica… ...

Transistors are the building blocks behind most of today’s electronic devices, and understanding how they work is key to understanding electronics and electrical engineering.

Explains the principles of transistor switching circuits, highlighting their role in electronic computers. It contrasts transistors with vacuum tubes, emphasizing that transistors function as ...

In theory, the hundreds of photons, controlled by the triggering photon, could fan out and switch off hundreds of other transistors in an optical circuit.