A teacher I know is stuck, with only npn transistors in the supply cupboard and ... And all but the last circuit are for sub-1A motors running from the Arduino rails. If pnps are allowed, emitter ...

Imagine for a moment a simple transistor circuit involving a single NPN transistor with its emitter ... biasing in a generation brought up on the Arduino or the Raspberry Pi.

Every time I log in, I’m presented with a list of new Blinky LEDs, Raspberry Pi accessories, Arduino shields ... it showed the schematic symbol for an NPN transistor with Collector, Base ...

For example, transistors and resistors replace the entire IC (Figure 1). The circuit handles only the clock signal or only the data signal. Two npn transistors, connected head-to-head, form the heart ...

Although this Design Idea describes a positive power supply, you can realize a similar negative-output-supply current-sense circuit using a dual NPN transistor in place of the dual PNP that the figure ...

A transistor is a key component in electronics, often used as a switch or to amplify a signal from a sensor. NPN (negative-positive ... example of a thyristor in a circuit in How a thyristor ...