8/6/2023 0 Comments Transistor vs mosfet![]() MOSFETs, however, are devices that are voltage controlled rather than current-controlled. The bipolar transistors have relatively slow turn-off characteristics and they exhibit negative temperature coefficient which may result in secondary breakdown. The BJTs have gone through vital enhancements of its electrical performance since its inception in late 1947 and is still widely used in electronic circuits. But two discrete diode connected back to back never work as a transistor.The bipolar transistors were the only real power transistor used until the very efficient MOSFETs came along in the early 1970’s. It is considered that the transistor consists two PN junction diode. The diode has only one depletion layer between P – type and N – type whereas the transistor has two depletion layer, one is between emitter and base region, and the other is between the base and collector region.Among the three regions, the base is the smallest region, and the collector is the largest region of the transistor. The transistor has three regions, namely emitter, base and collector. The hole is the majority charge carrier of the P-region and electrons is the majority charge carrier of the N – region of the diode. The P-type and N-type is the two region of the diode.The diode has many types, for example, photodiodes, Zener Diode, Tunnel Diode, Varactor Diode, etc. The BJT uses both the electrons and hole as a charge carrier, and the FET is a unipolar transistor. The transistor is mainly classified into two types, i.e., the Bipolar junction transistor and Field Effecting Transistor.The diode is a type of uncontrolled switch whereas the transistor is a controlled switch.The transistor has three terminals they are the emitter, collector and base. The diode has two terminals namely anode and cathode.The anode is the positive terminal, and the cathode is the negative terminal of the diode.The diode is used for converting the AC to DC or for rectifications whereas the transistor is mainly used for amplification and as a regulator.The diode is a semiconductor device which allows the current to flow only in one direction, whereas the transistor transfers the resistance from the low resistance region to high resistance region.Key Differences Between Diode and Transistor When the weak signal is introduced to the low resistance circuit of the transistor, it transfers the signal from the high resistance circuit. The emitter junction is forward bias and offers a small resistance, whereas the collector junction is in reverse bias and offer a high resistance. The emitter, collector and base are the three terminals of the battery. The block diagram of the diode is shown in the figure below.Ī transistor is a three-terminal device which is used for amplifying the electrical signals. The forward bias means the P-type material is connected to the positive terminal of the battery and the N-type material is connected to the negative terminal of the battery. The conduction occurs in the circuit when the diode is forward bias. The diode is made up of semiconductor material, and it is mainly used for rectification. The diode is a two terminal device which allows the current to flow in one direction. Junction diode, Light emitting diode, Photodiodes, Schottky diodes, Tunnel, Veractor and Zener diode.īipolar transistor and Field Effect Transistor. ![]() Regulator, Amplification and Rectification Content: Diode Vs TransistorĪ semiconductor device in which current flows only in one direction.Ī semiconductor device which transfers the weak signal from low resistance circuit to high resistance circuit. The collector is the largest region of the transistor because it can dissipate the heat produced at the base-collector junction. The base of the transistor is smaller in size and lightly doped thereby the charge carrier easily moved from base to collector region. ![]() The emitter is heavily doped so that it can transfer the heavy charged particle to the base. The transistor has three regions, namely emitter, collector and base. It is a two terminal device which starts conducting when the positive terminal of the supply is connected to the p-type region, and the negative terminal is connected to the n-region of the diode. The diode is also known as the crystal diode because it is made up of crystals (silicon or germanium).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |