0
What is the difference between power transistor and power mosfet?
Wiki User
∙ 14y ago
A BJT is one type of transistor and POWER TRANSISTOR can be BJT or MOSFET or some other phenomena.POWER TRANSISTOR are usually those who are used at high current ratings e.g at POWER AMPLIFIER where large transistors are used at final stage to gain output.
Wiki User
∙ 16y ago
Wiki User
∙ 15y agoA power transistor is physically larger, and capable of carrying more current without melting or burning up. Usually a power transistor has a heatsink attached to help remove heat from the device and keep it cool.
Wiki User
∙ 14y agoA Mosfet is a (spelled down):
Metal
Oxide
Semiconductor
Field
Effect
Transistor
A power transistor could be a power mosfet, but a power mosfet is not the only option for power transistor - you could use a BJT, JFET, etc.
Wiki User
∙ 10y agoA JFET is the basic type of FET. In an ordinary transistor, the junction between the base and the collector is essentially a reverse biased diode. However when charge carriers (electrons or holes) are injected by the emitter, the diode conducts.
In a JFET, a piece of doped semiconductor material is allowed to conduct from one end (the source) to the other (the drain). An insulated electrode is placed VERY close to the semiconductor material, so that voltages on that electrode can push the holes or electrons away capacitively, thus narrowing the conductive channel, and raising it's resistance.
There are P channel and N channel JFETs, intended to operate on positive or negative supply coltages.
Wiki User
∙ 11y agoMOSFET is a voltage controlled device and BJT is a current controlled device. MOSFEThas three terminals as gate, source and drain. BJT has three terminals as base, coolector and emitter.
Add your answer:
Earn +20 pts
What is the difference between SL100 and CL100 transistor?
ITS AN NPN TRANSISTOR , GENERALLY USE AS A SWITCH GENREALLY IN COMMON EMITTER CONFIGURATON
Which semiconductor power device is not a current triggered device?
Power FET
What is difference between npn ans pnp transistor?
NPN and PNP transistors function in essentially the same way. The power supply polarities are simply reversed for each type. The only major difference between the two types is that the NPN transistor has a higher frequency response than the PNP-because electron flow is faster than hole flow. Therefore high frequency applications will utilize NPN transistors.
What is meant by transistor AD162?
An AS162 transistor is a type of PNP transistor commonly made of germanium. This is an older kind of transistor that was often found in power amplification circuits.
Transistor 603 12F?
a 603 12F high current power, multi-emitter transistor.
Different between power transistor and transistor that used in small signal?
Power transistor can conduct large amount of currents through it, more than small signal transistor. power transistor has a vertical structure and small signal transistor has horizontal structure.In power transistor quasi saturation region is present which is absent in the small signal transistor. In power transistor there is a inculsion of drift layer which is not there in the small signal transistor. Power dissipation is less in power transistor and it is more in small signal transistor. b.v.polytechnic,vasai pushkar vaity.
What are the advantages of mosfet?
mosfet base power inverter of advantages and disaadvantages
What is the difference between SL100 and CL100 transistor?
ITS AN NPN TRANSISTOR , GENERALLY USE AS A SWITCH GENREALLY IN COMMON EMITTER CONFIGURATON
What is the difference between jfet and mosfet?
1-BJT is bipolar while JFET is unipolar. 2-BJT has low input impedence while JFET has high input impedence. 3-JFET has low power discipation as compared to BJT. 4-JFET has low noise as compared to BJT. 5-BJT is current controlled while JFET is voltage controlled. 6-JFET is mostly used in digital circuits.
Why input impedance of mosfet is high?
So as opposed to a BJT transistor (which has a large but measurable input impedance) a Mosfet has even larger (presumably infinite) impedance. The reason is because of a small non-conducting zone that exists between the Gate side and the Drain-Source side. It acts as a small capacitor (which capacitors have infinite resistance), and the electromagnet field produced is what drives current between Source and Drain. Now, why is this desirable? In the case of BJT's there is a small current that flows into the base, essentially drawing small but existent power from the circuit connected at the Base. It is more ideal to have a transistor that completely separates the current of the control circuit and the current in the circuit being switched/supplied. Simply, it means its more efficient. When BJT transistors are turned off, power is still being used. The same isn't necessarily true for Mosfet transistors.
How do you keep mosfet from overheating i use only mosfet and control it using variable resistor it works but it gets overheated and brokedown.My battery operated scooter is 24v dc 72 amp.thank you.?
Use a mosfet driver instead of a simple resistor. Using a resistor to control the mosfet is a bad idea anyways because you will have terrible control (mosfets are voltage controlled. Take a look at the response curve for your mosfet). If your mosfet is fully on, its ratings may be too low for continuous operation or the power dissipation is too low for the transition between off an on an that is killing your mosfet.
Which semiconductor power device is not a current triggered device?
Power FET
Power MOSFET is voltage controlled or frequency controlled device?
A Power MOSFET is a voltage controlled device http://www.profesores.frc.utn.edu.ar/industrial/sistemasinteligentes/UT1/Understandig%20Pwr%20Mosfets.PDF
How can a ttl output from a receiver be used to switch a transistor on or off?
By choosing the type of transistor to meet your needs carefully. I assume what you're trying to do is feed beyond the ttl output's power capability? a JFET may be a good option. A simple amplifier circuit using a MOSFET may be all you need, and this might be more readily available.
What is mining of transistor?
A transistor is a device used to switch power between electrical components. Transistors work to amplify existing signals as well as open and close circuits.
What is photo transistor?
Photo transistor always work with solar power
What is difference between npn ans pnp transistor?
NPN and PNP transistors function in essentially the same way. The power supply polarities are simply reversed for each type. The only major difference between the two types is that the NPN transistor has a higher frequency response than the PNP-because electron flow is faster than hole flow. Therefore high frequency applications will utilize NPN transistors.
