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Q: How programmable unijunction transistor is on and off?
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What determines the amount of potential required to forward bias a unijunction transistor?

Intrinsic Stand-off Ratio


Which semiconductor acts like a diode and two resistors?

uni junction transistor


What does a transistor do?

Depending on how the transistor is biased and various other circuits connected to it, a transistor acts as an amplifier and/or switch. When acting as an amplifier the circuit containing the transistor can do things like transmit or receive radio signals, perform analog mathematical calculations, generate waveforms, etc. When acting as a switch the circuit containing the transistor can do things like turn on/off a light, turn on/off a motor, perform digital logic or mathematical operations, fetch and decode computer instructions, etc. Exactly what a transistor can do is really only limited by the system requirements and the designer's imagination as to how to meet those requirements. There are several different types of transistors: bipolar junction transistors (BJTs), field effect transistors (FETs), unijunction transistors (UJTs), programmable unijunction transistors (PUJTs), spacitors, surface barrier transistors (SBTs), tetrode transistors (TTs), point contact transistors (PCTs), etc.


What is a programmable timer?

A programmable timer usually just means a timer that can be programmed to go off at any time.


What is unijunction tranjistor?

In unijunction transister there be a only one P-N Junction like diode, and current conduction takes place by either through holes or electrons.

Related questions

What is the purpose of the Unijunction Transistor?

A Unijunction Transistor is a transistor that acts solely as a switch.


What type of transistor is a JFET?

JFET is a unijunction transistor.


What determines the amount of potential required to forward bias a unijunction transistor?

Intrinsic Stand-off Ratio


What is a Programmable unijunction transistor?

PUT: programmable unijunction transistor It is a device like the thyristor only the gate is connected to the N type material near the anode. It is usually used in time delay, logic and SCR trigger circuits In the PUT, Gate is always positively biased w.r.t cathode. When anode voltage exceeds the gate voltage by about 0.7 V, first junction that is the junction right after the anode gets forward biased and PUT turns on. When anode voltage becomes less than the gate voltage, PUT is turned off.


Which semiconductor acts like a diode and two resistors?

uni junction transistor


What does transistor do?

Depending on how the transistor is biased and various other circuits connected to it, a transistor acts as an amplifier and/or switch. When acting as an amplifier the circuit containing the transistor can do things like transmit or receive radio signals, perform analog mathematical calculations, generate waveforms, etc. When acting as a switch the circuit containing the transistor can do things like turn on/off a light, turn on/off a motor, perform digital logic or mathematical operations, fetch and decode computer instructions, etc. Exactly what a transistor can do is really only limited by the system requirements and the designer's imagination as to how to meet those requirements. There are several different types of transistors: bipolar junction transistors (BJTs), field effect transistors (FETs), unijunction transistors (UJTs), programmable unijunction transistors (PUJTs), spacitors, surface barrier transistors (SBTs), tetrode transistors (TTs), point contact transistors (PCTs), etc.


What does transistor?

Depending on how the transistor is biased and various other circuits connected to it, a transistor acts as an amplifier and/or switch. When acting as an amplifier the circuit containing the transistor can do things like transmit or receive radio signals, perform analog mathematical calculations, generate waveforms, etc. When acting as a switch the circuit containing the transistor can do things like turn on/off a light, turn on/off a motor, perform digital logic or mathematical operations, fetch and decode computer instructions, etc. Exactly what a transistor can do is really only limited by the system requirements and the designer's imagination as to how to meet those requirements. There are several different types of transistors: bipolar junction transistors (BJTs), field effect transistors (FETs), unijunction transistors (UJTs), programmable unijunction transistors (PUJTs), spacitors, surface barrier transistors (SBTs), tetrode transistors (TTs), point contact transistors (PCTs), etc.


What does a transistor?

Depending on how the transistor is biased and various other circuits connected to it, a transistor acts as an amplifier and/or switch. When acting as an amplifier the circuit containing the transistor can do things like transmit or receive radio signals, perform analog mathematical calculations, generate waveforms, etc. When acting as a switch the circuit containing the transistor can do things like turn on/off a light, turn on/off a motor, perform digital logic or mathematical operations, fetch and decode computer instructions, etc. Exactly what a transistor can do is really only limited by the system requirements and the designer's imagination as to how to meet those requirements. There are several different types of transistors: bipolar junction transistors (BJTs), field effect transistors (FETs), unijunction transistors (UJTs), programmable unijunction transistors (PUJTs), spacitors, surface barrier transistors (SBTs), tetrode transistors (TTs), point contact transistors (PCTs), etc.


Is a transistor a diode?

No.Di, or bi, means two. A diode, from the Greek di (two), and ode (path), has, rather obviously, two connections, which, in older ones (valves/thermionic diodes), were called electrodes.A transistor has three connections (so it would make, at least grammatic, sense to call it a triode).


What is a PUT thyristor?

put (programmable unijunction transistor) he Programmable Unijunction Transistor behaves much like a unijunction transist or (UJT), but is "programmable" via external resistors (that is, you can use two resistors to set a PUT's peak voltage). Note that the name is a bit of a misnomer -- as a thyristor, it is a four layer device, unlike a true unijuncti on transistor which has but two layers. Like other thyristors, a PUT looks much like a junction transistor with a fourth layer and therefore a total of three P- N junctions. Meanwhile, a third terminal, the gate (G), makes a PUT function like a hybrid of transistor and diode: PUT symbolPUT cross-section PUTs are not often used in BEAM; they're essentially special-purpose devices in electronics, used for lightingcontrol, motor speed control and othervariable power applications. In combination with an SCR they can, though, makea mean solar engine. In a pinch, you can build up something much like a PUT from discrete transist ors wired as a complementaryfeedback Here, as soon as any current flows in either transistor, this current becomes base current for the other transistor, and both transistors turn on hard. This means you can only build up this circuit using low-leakage transistors ('though this should be the case with any decent- quality modern transistor ).


What is a UJT?

UJT(UNIJUNCTION TRANSISTOR) is a three-lead electronic-semiconductor device with only one junction that exclusively as an eletrically controlled swtich andit is not used as a linear amplifier.


Type of transistor?

There are many different part-numbers found on transistors. These part numbers are to distinuguish individual models for voltage-ratings etc., but there are only two different transistor types; PNP (Positive Negative Posistive), and NPN (Negative Positive Negative)