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There are two primary types of transistors classified on the basis of power: bipolar junction transistors (BJT) and field effect transistors (FET).
Bipolar junction transistors are current-controlled devices, meaning that the amount of current flowing through the device is controlled by the voltage applied to the base electrode. The base-emitter voltage (VBE) and base-collector voltage (VBC) determine the amount of current flowing through the device. The current flowing through the device is given by the following equation:
I = β * (VBE - VBC)
Where β is the current gain of the transistor.
Field effect transistors are voltage-controlled devices, meaning that the voltage applied to the gate electrode controls the amount of current flowing through the device. The voltage applied to the gate electrode determines the width of the conducting channel between the source and drain electrodes. The current flowing through the device is given by the following equation:
I = μ * W * (VGS - VDS)
Where μ is the mobility of the carriers in the channel, W is the width of the conducting channel, VGS is the voltage applied to the gate electrode, and VDS is the voltage applied to the drain electrode.
What else can I help you with?
What are power transistors?
Power transistors are transistors that are used in high-power amplifiers and power supplies.
What is the basis for the classification of clouds?
Clouds are classified on the basis of their form and height.
Are transistors polarised?
No it alternates the power from the circuit/circuits.
What has the author Ralph C Waggitt written?
Ralph C. Waggitt has written: 'Radiation effects on power transistors' -- subject(s): Effect of radiation on, Power transistors
Why do transistors sometimes need heatsinks?
These types of transistors are power transistors and generate heat. The heat sink is used to dissipate the heat. If the transistor gets too hot it will fail.
What was thre transistors replaced by in the 1960?
Transistors were shortly thereafter replaced by integrated circuits, which further minimized size and lessened power requirements.
Can PNP transistors be used in place of TIP31 transistors?
No...TIP31 is NPN. The complementary PNP is a TIP32. They are both large high power (40W) devices.
How did Aristotle classified plants on the basis of?
Aristotle classified plants based on the presence or absence of woody tissue. He categorized plants into trees, shrubs, and herbs based on their growth form. Additionally, he classified plants based on their reproductive structures and life cycle.
Why do you try to use integrated circuits instead of transistors in modern equipment?
I modern Integrated circuit may have hundreds of thousands of transistors in it. They seriously reduce the size of a unit and the power required to operate it. Your laptop computer would be a small building if it were made from individual transistors and require special power to run.
Why thyristors are preferrred over transistors?
Thyristors are preferred in applications that require the characteristics on a thyristor. Thyristors are quite different to transistors, when they turn on, they stay turned on untill the power source is removed. Transistors conduct as controlled by the emitter current.
How are country classified on the basis of human development index?
madar chod
How are networks classified on the basis of geographical area?
Lan man wan
