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Why are MOSFETs used in motor control circuits instead of bipolar junction transistors?
Wiki User
∙ 9y ago
Actually either can be used.
Wiki User
∙ 9y ago
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What are PNP and NPN?
In most discrete bipolar junction transistors the substrate is the collector. In monolithic integrated circuits the bipolar junction transistors are electrically isolated from the substrate, either by reversed biased junctions or insulator (e.g. sapphire). Some older bipolar junction transistor types (usually made with germanium) the substrate is the base. In bipolar point contact transistors the substrate was the base.
What do digital circuits mostly use?
Bipolar Transistors and Diode's .
Are the Bipolar Junction Transistor and the Transistor the same thing?
Sort of. The Bipolar Junction Transistor, or BJT, is a type of transistor. But the term transistor applies to a much wider family of components than just the Standard BJT. A rough list of the other common types of transistors includes:Field effect transistors, or FETs, including both Junction types and Metal-oxide Semiconductor types: JFETs and MOSFETs. and also UJTs or unijunction transistors.In a basic electronics course, though, if you say just 'transistors' it is assumed you mean BJTs.
Do people use bipolar junction transistor today?
Yes people still use bipolar junction transistors today because of its high switching speed.
Where can one get information regarding BJT?
If you have questions about Bipolar Junction Transistors (BJT), there are a small handful of websites. Indiabix, All About Circuits, and Research Gate are some places you can find information.
What applications would prefer the bipolar junction transistors over the field effect transistor?
bjt is bipolar device whr fet is unipolar....fet is input resistance thts y fet gain is less compared to bjt..... The applications that will prefer bipolar junction transistors to field effect transistors are applications that require fast switching.
What is btj transistors?
They are NPN and PNP. BJT mean bipolar junction transistors. there are two P-N junctions in BJT transisters.
What are the uses of BJT?
Bipolar junction transistors has two junctions base emitter junction, base collector junction. Accordingly there are four different regions of operation in which either of the two junctions are forward biased reverse biased or both. But the BJT can be effectively operated in there different modes according to the external bias voltage applied at each junction. i.e. Transistor in active region, saturation and cutoff. The other region of operation of BJT is called as inverse active region.
What does the arrow in bipolar junction transistor symbol represent?
There a two types of bipolar transistors PNP and NPN . This refers to the doping elements used in the silicon components of this 3 layer device with base always in the middle. The arrow is the emitter wire and shows direction of conventional current flow(positive to negative) NPN transistors (generally used in negative earth circuits) have the arrow pointing away from the base connection PNP transistors ( generally used in circuits with positive earth) have the arrow pointing towards the base connection.
Applications of hybrid pi model of bjt?
ApplicationsThe BJT remains a device that excels in some applications, such as discrete circuit design, due to the very wide selection of BJT types available, and because of its high transconductance and output resistance compared to MOSFETs. The BJT is also the choice for demanding analog circuits, especially for very-high-frequencyapplications, such as radio-frequency circuits for wireless systems. Bipolar transistors can be combined with MOSFETs in an integrated circuit by using a BiCMOSprocess of wafer fabrication to create circuits that take advantage of the application strengths of both types of transistor.
What has the author Richard Charles Jaeger written?
Richard Charles Jaeger has written: 'Low frequency noise sources in bipolar junction transistors' -- subject(s): Transistors, Frequency response (Dynamics)
What is meant by logical?
TTL stands for "transistor-transistor logic" and consists of using BJT's ("bipolar junction transistors") to conduct the logic for the circuit.
