A transistor is an electronic component used in a circuit to control a large amount of current or voltage with a small amount of voltage or current. This means that it can be used to amplify or switch (rectify) electrical signals or power, allowing it to be used in a wide variety of electronic devices.
To do this, it sandwiches a semiconductor between two other semiconductors. Because current is transferred through a material that normally has a high resistance (i.e. resistance), it is called a "transfer resistor" or transistor.
The first practical point-of-contact transistor was built in 1948 by William Bradford Shockley, John Bardeen, and Walter House Brattain. The patents for the transistor concept date back to 1928 in Germany, although they seem to never have been built, or at least no one has ever claimed to have built them. The three physicists received the Nobel Prize in Physics in 1956 for this work.
Basic structure of point contact transistor
There are basically two basic types of point contact transistors, the npn transistor and the pnp transistor, where n and p represent negative and positive respectively. The only difference between the two is the arrangement of the bias voltages.
To understand how a transistor works, you need to understand how semiconductors react to an electrical potential. Some semiconductors will be n-type, or negative, which means that the free electrons in the material drift from a negative electrode (of a battery, for example, to which it is connected) towards the positive. Other semiconductors will be p-type, in which case the electrons fill "holes" in the atomic electron shells, which means that it behaves as if a positive particle is moving from the positive electrode to the l. negative electrode. The type is determined by the atomic structure of the specific semiconductor material.
A transistor is an electronic component used in a circuit to control a large amount of current or voltage with a small amount of voltage or current. This means that it can be used to amplify or switch (rectify) electrical signals or power, allowing it to be used in a wide variety of electronic devices.
To do this, it sandwiches a semiconductor between two other semiconductors. Because current is transferred through a material that normally has a high resistance (i.e. resistance), it is called a "transfer resistor" or transistor.
The first practical point-of-contact transistor was built in 1948 by William Bradford Shockley, John Bardeen, and Walter House Brattain. The patents for the transistor concept date back to 1928 in Germany, although they seem to never have been built, or at least no one has ever claimed to have built them. The three physicists received the Nobel Prize in Physics in 1956 for this work.
Basic structure of point contact transistor
There are basically two basic types of point contact transistors, the npn transistor and the pnp transistor, where n and p represent negative and positive respectively. The only difference between the two is the arrangement of the bias voltages.
To understand how a transistor works, you need to understand how semiconductors react to an electrical potential. Some semiconductors will be n-type, or negative, which means that the free electrons in the material drift from a negative electrode (of a battery, for example, to which it is connected) towards the positive. Other semiconductors will be p-type, in which case the electrons fill "holes" in the atomic electron shells, which means that it behaves as if a positive particle is moving from the positive electrode to the l. negative electrode. The type is determined by the atomic structure of the specific semiconductor material.
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