How does BC547 transistor work?

How does BC547 transistor work?

The BC547 transistor is an NPN transistor. A small current of the base terminal of this transistor will control the large current of emitter and base terminals. The main function of this transistor is to amplify as well as switching purposes. The maximum gain current of this transistor is 800A.

Why is BC547 used?

BC547 is usually used for current amplifier, quick switching and pulse-width modulation (PWM). Therefore, if you need to control the speed of a motor or actuator in some of your projects, you can simply use this transistor to achieve it.

What is the function of transistor?

A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. Transistors are one of the basic building blocks of modern electronics. It is composed of semiconductor material usually with at least three terminals for connection to an external circuit.

Is BC547 a Mosfet?

N-Channel MOSFET (IRFZ44N) BC547 Transistor BC547 is an NPN transistor hence the collector and emitter will be left open (Reverse biased) when the base pin is held at the ground and will be closed (Forward biased) when a signal is provided to the base pin.

What is the BC547 transistor pinout?

BC547 transistor pinout or pin diagram has three pins, starting from left: collector, emitter, and base respectively. BC547 transistor acts as a switch between the collector and emitter. If the base of the transistor is given enough current, this switch closes and the current flows from the collector to the emitter.

Is BC547 and BC548 same?

BC547 and BC548 are essentially the same but BC547 has a higher breakdown voltage whereas BC548 has low noise. These are the most general purpose NPN silicon transistors and changing one with the other does not noticably (or otherwise) affect the circuit.

How do I use BC548?

1. BC548 is a NPN transistor so the collector and emitter will be left open (Reverse biased) when the base pin is held at ground and will be closed (Forward biased) when a signal is provided to base pin.
2. When a transistor is used as a switch it is operated in the Saturation and Cut-Off Region as explained above.

How transistor changed the world?

Transistors transformed the world of electronics and had a huge impact on computer design. By replacing bulky and unreliable vacuum tubes with transistors, computers could now perform the same functions, using less power and space. Before transistors, digital circuits were composed of vacuum tubes.

What is the theory of operation of a transistor?

Transistor theory of operation. A bipolar transistor can be operated in one of four different regimes dependent upon the bias levels on the two diodes in the transistor. Of the four regimes, the active or normal mode where the emitter base junction is forward biased and the collector base junction is reverse biased is the most important.

What is a BJT transistor?

Transistors: Bipolar Junction Transistors (BJT) General configuration and definitions The transistor is the main building block “element” of electronics. It is a semiconductor device and it comes in two general types: the Bipolar Junction Transistor (BJT) and the Field Effect Transistor (FET).

What are the different modes of operation of a bipolar transistor?

A bipolar transistor can be operated in one of four different regimes dependent upon the bias levels on the two diodes in the transistor. Of the four regimes, the active or normal mode where the emitter base junction is forward biased and the collector base junction is reverse biased is the most important.

What does the energy band diagram of a transistor reveal?

The energy band diagram reveals an important aspect of the transistor theory of operation. The diagram reveals some of the major current components. The emitter base junction the forward current consists of electron and hole diffusion current I nE and I p as well as the recombination currents in the depletion region I rD and in the base I rB.