How does a transistor act as a oscillator amplifier and switch?

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The red line goes down and the blue line just goes all the way up. Cool right?
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What is the difference between amplifier and oscillator?

Amplifiers are circuits which transfer an input signal into anoutput signal. Oscillators are autonomous circuits powered by a constant energysource. Oscillators produce a steady state signal e.g. a square wavesignal, a sinusoidal signal or a chaotic signal. Real world oscillators are non linear cir (MORE)

How does a transistor work as an amplifier?

we know that in a transistor we have three types of regions: EMITTER, COLLECTOR, BASE, and we know that emitter is highly doped, so charge carriers are very high, so resistance is very less, and on the other side collector is moderately doped so charge carriers are less, so resistance is very high. (MORE)

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 t (MORE)

How is a transistor used as an amplifier?

It amplifies current and voltage from other transistors and outputs go to inputs respectively and the gain increases and eventually to the speaker output, or whatever its used for.

When does a transistor act as a switch?

When we use a transistor as a switch, we will be operating it in either an "all on" or an "all off" mode. Depending on the transistor, we'll just apply some "maximum" base voltage to drive it into saturation and allow for maximum collector current, or we'll not apply any base voltage and the device (MORE)

What is a switch transistor?

ALL transistors can be used as switch. however there are certain parameters to be noted. speed saturation and storage time. Once a transistor is saturated current may flow either way

How can an amplifier become an oscillator?

An amplifier can become and oscillator by adding positive feedback from the output back to the input. Positive feedback means that the phase of the signal fed back to the input is the same as the phase of the output signal. In the case of a high frequency oscillator, a tuned circuit (inductor and ca (MORE)

What is difference between transistor and amplifier?

A transistor is an electronic component. By itself it has littleuse. An amplifier is a complete, functional circuit, generally madeup of several components. A transistor can be a component part ofan amplifier, however an amplifier may be constructed without anytransistors (using vacuum tubes instead (MORE)

Differences between amplifiers and oscillators?

The amplifier projects the audio signal into something we can comprehend. The oscillator creates a fixed or variable pitch, which is fed to the amplifier. Amplifiers are circuits which transfer an input signal into an output signal. Oscillators are autonomous circuits powered by a constant ene (MORE)

Why transistor is used as an amplifier?

A transistor acts like a valve or gate that opens and closes, and allows a current to flow. Since the amount of current that flows is controlled by another input, they can be used to make amplifiers. Carbon microphones and vacuum tubes have the same property, and so have also been used to make ampli (MORE)

Working of transistor as an oscillator?

A transistor is often referred to as an oscillator because of itsability to transfer resistance. it can also switch off and onrepeatedly, mimicking an oscillator.

How does transistor amplify?

A transistor has three sections, an emitter, base, and collector. By extracting a small number of electrons from the base, a large # of electrons can flow across the transistor from the emitter, thru the circuit, and back to the collector.

Transistor works as an amplifier?

Yes, transistors can be used as amplifiers, but they are not limited to only this use (they are also used in logic circuits, for example).

How do you convert amplifier to oscillator?

oscillator needs positive feedback in order to produce the undamped oscillations .This is done with help of he amplifier circuit.The oscillations are produced by the tank circuit cosisting of inductor and capacitor.The output of this tank circuit is fedback to the transistor which amplifies it and g (MORE)

What is the difference between a transistor used as a switch and an amplifier?

A transistor used as a switch is operated in saturated mode, where the ratio of base-emitter current over collector-emitter current is far more than hFe, or beta gain. The transistor is either fully on or fully off in this mode. A transistor used as an amplifier is operated in linear mode, where (MORE)

Explain the operation npn transistor when used as amplifier.. and explain the basic operation of NPN when used as switch?

The NPN transistor when used as an amplifier is operating in linear mode, and, when operating as a switch, in saturated mode. In the following discussion, base currrent means base-emitter current, while the base is more positive than the emitter, and collector current means collector-emitter curr (MORE)

How does a transistor act as a oscillator?

A: actually any active components will oscillate with positive feedback A transistor can be used as an amplifier along with an LC tank circuit to form an oscillator; it is an active device (as LIBURNO states) which will amplify the feedback signal coming out of the LC tank circuit. The tank circuit (MORE)

What is amplifier and oscillator?

amplifier is electronic circuit which is used to increase the amplitude of the input signal without affecting its frequency and phase.

How can transistors act as amplifiers?

the magical computer fairies wave there magic wands and make electricity appear sometimes they live in transistors as this is where theyare happiest and that happiness is turned into electricity

What is the meaning of transistor as an amplifier?

the electrical signal coming out from the micro phone is very low &this cannot drives the loud speaker.For this purpose we incresing the signal level which is coming out from the microphone (usually an Ac signal)is known as amplifier.it cannot incresing this signal level without using external energ (MORE)

Can a transistor amplify DC and how?

Yes, but only if you already have the stronger current. A transistor is basically a switch which is activated by an electric current. AC (Alternating Current) can be amplified by using it to "switch" the transistor on and off, while applying DC (Direct Current) to the transistor. DC could be amplifi (MORE)

How is an transistor used as a amplifier?

In forward active mode, transistor can amplify current and/or voltage signals. So here, it can be used as an amplifier. To understand this read as follows... There are four mode of operations for a transisitor. 1. Forward active mode. 2. Reverse active mode. 3. Cut Off mode. 4. Saturat (MORE)

How is an amplifier used in a transistor?

The question should be like: How can a transistor be used as an amplifier...?? Answer: There are four mode of operations for a transisitor. 1. Forward active mode. 2. Reverse active mode. 3. Cut Off mode. 4. Saturation Mode. To be an amplifier, transistor must be used in forward activ (MORE)

What type of transistor is used in amplifier?

Depends on the type of amplifier. There are a lot of different circuits of amplifiers and each one of them use proper transistors, that works better for that circuit. Moreover, on every stage of the amplifier are used different transistors as well.

How transistor amplify voltage?

Transistors, at least the typical bi-junction transistor, actually amplify current. We set them up in a voltage divider circuit that converts current gain into voltage gain. The simple explanation is that a small delta current on base-emitter causes a larger delta current on collector-emitter. Th (MORE)

Why transistor act as amplifier?

Amplification is the process of linearly increasing the amplitude of an electrical signal. - A transistor can act as an amplifier directly using the gain, b. - Keep in mind that when a transistor is biased in the active (linear) region, the BE junction has a low resistance due to forward bias and th (MORE)

How do transistors amplify an input signal?

There are three pins on a transistor. One is hooked to the input signal. One to the power supply, and the third to ground. (These have different names depending on whether the particular device in your hand is a bipolar transistor or a field-effect transistor.) The pin hooked to the input signal con (MORE)

How a transistors amplify a input signal?

A transistor is a device that controls a large current with a small current. If it has an Hfe parameter of 50, then a 1 mA AC input current to it's base will cause a 50 mA AC current component at it's collector.

What is transistor as a switch?

transistor is a nonlinear device. it will acts as a swicth based on the cut in voltage we can easily identifying the the transistor is in forward or reverse bias.in forward it is 'on' reverse bias 'off'.

How a transistor work as an amplifier and as a switch?

"Transistor" name itself revels it transfers resistance from its input to its output (Transfer of resistance). Input resistance varies when input voltage varies, similarly output resistance varies and this leads to voltage variation at the output. Thus input to output voltage variation is called amp (MORE)

How transistor acts as a light switch?

All transistors are reactive to light. If you cut the top off of a regular PNP or NPN transistor and expose it to a sufficient amount of light, a current will conduct through any two of its leads. If you want to use it as a switch that turns on when it's night, you could attach the output to an inve (MORE)

Why transistor acts as an amplifier?

In a transistor, a small current in the base-emitter circuit stimulates a significantly larger current in the collector-emitter circuit by breaking down the barrier in internal diode junctions. External resistor networks may be used to regulate these currents and produce larger voltages from smaller (MORE)

Why in oscillator triode is used instead of transistor?

I do not understand your question, oscillators CAN be built with either (and many other amplifying components). A few examples are: . triode tube . tetrode tube . pentode tube . beam power tube . pentagrid converter tube (cathode and first 2 grids form local oscillator) . magnetron tube . (MORE)

Why a transistor acts as a switch?

Only because the circuit that its embeded in is designed that way. Remember, a transistor is basicly an amplifier ... only if you design everything to go to the extreams will it act asa switch.