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Which factor affect the switching speed of a transistor and how?
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What is the switching speed of thyristor?
25microsec
What is the main component in inverters?
An inverter design and components vary with requirements but following components are most commonly used in designing an inverter. 1.microcontroller:Microcontroller is the main and integral part of an inverter. The main working of microcontroller is to control the switching of signals according to the requirements. 2.Bipolar Junction Transistor:BJT or a bipolar junction transistor is a three layered device which is capable of controlling the current flow. 3.Mosfets:The Metal-Oxide-Semiconductor-Field-Effect-Transistor (MOSFET) is a voltage controlled device and requires a very small input current.It is mainly used for switching of electronic signals as its switching speed is very high. 4.Filters:At times it is desirable to have circuits capable of selectively filtering one frequency or range of frequencies out of a mix of different frequencies in a circuit.
What is the difference between a transistor being use as a switch and as an amplifier?
When used as a switch, a transistor is usually driven completely on (saturation) or completely off (cutoff). There are a few kinds of switching circuits though (e.g. ECL) that avoid saturation/cutoff to obtain faster speed, these operate on a fixed constant current and switch it through one of two transistors. When used as an amplifier it is biased so that it operates in a linear, or near-linear, part of its characteristic curve so that the output faithfully copies the input.
What is multi emitter transistor?
A bipolar junction transistor with 2 or more emitters. The most common use of these was in the input section of transistor transistor logic (TTL) gates. They offered significantly higher speed and used less area on the IC chip than the diodes used in the input section of the diode transistor logic (DTL) gates that came earlier. This made TTL ICs both faster and cheaper than the DTL ICs which soon became obsolete.
What is TTL logic family?
To know about the advantages of TTL logic family, one should have a basic idea about RTL, DTL etc. Diode logic (DL) uses diodes to implement logical functions like AND and OR. But the disadvantage is that it can not perform NOT operation. As AND and OR are not complete functions by themselves, they can not perform several logic functions without NOT. Hence, there was a need for some device which can perform a NOT function as diodes can not. That device is a transistor. Then came the DTL which uses a transistor along with diodes. As a transistor can act as an inverter, NAND (NOT-AND) & NOR (NOT-OR) operations can be performed. But this logic uses several diodes which will slow down its operation. Due to the delay offered by them, the logic levels may sometimes change i. e. 0 t0 1 or 1 to 0. Then came TTL. This logic uses a multi emitter transistor, a transistor with many emitter terminals. As every emitter is nothing but a diode, this logic eliminates the use of all diodes. This is the major advantage. As transistor becomes ON and OFF much rapidly than a diode, switching time will be faster. TTL, or Transistor-transistor logic replaced resistor-transistor logic, and used much less power. The TTL family is very fast and reliable, and newer faster, less power-consuming, etc. types are always being developed. = In TTL (Transistor-Transistor Logic), think that the device using this technology is made from several transistors. Another advantage is that many more chips employ this technology.
Do people use bipolar junction transistor today?
Yes people still use bipolar junction transistors today because of its high switching speed.
Which transistor is used for high speed power application?
In transistor the heat is created during transition stage means from cutoff to saturation and reverse, so if transistor used for high frequency application power loss can be minimized. The heat produced during switching is actually power loss.
How do transistors affect calculations?
It's not possible to answer this question the way you've asked it. "How does the presence of a transistor in a circuit affect calculations?" may be what you mean. "How do propagation delays in transistor components affect the speed of calculations?" is another possibility. Please ask the question so that we can answer it.
What is Transistor Switching time?
Transistor switching times: The turn-on time of switching transistor sum of delay time (td) and rise time (tr). ton = td + tr. Delay time (td): It is defined as the time during which the collector current rises from zero to 0.1ICS.
What factor does not affect stream size and speed?
load
What has the author John Michael Dorsey written?
John Michael Dorsey has written: 'An analytical and experimental investigation into application of a polyphase transistor switching circuit for speed control of induction motors'
How does aerodynamics affect the speed of a car?
It changes the air resistance of the car - which is the controlling factor of top-speed.
What is the switching speed of thyristor?
25microsec
Why do planets differ in their temperature?
The main factor that affect their temperature are... their proximity to the sun - and their speed of rotation.
What is the relation between the processing speed of a computer and transistor?
nothing...
What are the Factor that affect the speed of a running car?
Drag coefficient and power to weight ratio come to mind .
What are the factor that affect the speed of the running car?
Drag coefficient and power to weight ratio come to mind .
