Table of Contents
- 1 Can I use any transistor for audio amplifier?
- 2 What type of transistor is used for amplifiers?
- 3 Which transistor is best for audio amplifier?
- 4 How do you make an amplifier with BC547 transistor?
- 5 How do I know which transistor to use?
- 6 What are the applications of bipolar junction transistors?
- 7 What is the current gain of a common-emitter transistor amplifier?
Can I use any transistor for audio amplifier?
You can use any NPN transistor for Q1, Q3 and any PNP transistor for Q2. Any way the minimum collector current capacity of the transistors must not be less than 100mA. The circuit will work well with an 8 ohm speaker too, but the volume will be a little less.
How can we make a simple audio amplifier using transistor?
Circuting :
- First place transistor on breadboard .
- Insert resistor at pin 1 and 2 of transistor .
- Insert positive terminal of capacitor at pin1 of transistor .
- Insert one wire of 3.5 mm jack at negative terminal of capacitor.
- Insert remain wire of 3.5 mm jack at pin3.
- Insert one wire of speaker at pin2 .
What type of transistor is used for amplifiers?
In most of the electronic circuits, we use commonly NPN transistor configuration which is known as NPN transistor amplifier circuit. Let us consider a voltage divider biasing circuit which is commonly known as a single stage transistor amplifier circuit.
Can I use any transistor?
Others are set up for a particular application even though they are all part of the same family of components (capacitors, resistors, inductors, transistors, diodes). So yes transistors are interchangeable, if the type (npn/pnp) and required specs match.
Which transistor is best for audio amplifier?
4 Answers. You could successfully build a audio amp from many different types of BJTs. It will be the circuit, not the transistor, that makes the amp work well. I’d pick jellybean parts like the 2N4401 (NPN) and 2N4403 (PNP) and stick with them for everything except for the final power output transistors.
How do you make a simple amp circuit?
Make a Simple Audio Amplifier
- Step 1: Components. You need the following components.
- Step 2: Circuit Diagram. The circuit which we are going to make is.
- Step 3: Placing the IC.
- Step 4: 0.0.
- Step 5: GAIN Controller.
- Step 6: 100 Micro Farad Capacitor.
- Step 7: 10 Ohm Resistor & 0.047 Capacitor.
- Step 8: Volume Controller.
How do you make an amplifier with BC547 transistor?
BC547 Double Transistor Audio Amplifier
- Step 1: Take All Parts As Shown Below. Components required –
- Step 2: Connect Both Transistors.
- Step 3: Connect 10K Resistor.
- Step 4: Connect Capacitor.
- Step 5: Connect Speaker Wire.
- Step 6: Connect Aux Cable.
- Step 7: Connect Power Supply Wire.
- Step 8: Aplifier Is Ready.
Which junction is forward biased when transistor is used as an amplifier?
emitter-base junction
Which junction is forward biased when transistor is used as an amplifier? Explanation: For Transistor to be used as an amplifier, the emitter-base junction is forward biased and the base-collector region is reverse biased. This state is called an active state.
How do I know which transistor to use?
When choosing a transistor to use as a switch you need to consider its maximum collector current Ic(max) and its minimum current gain hFE(min). Transistor voltage ratings may be ignored for supply voltages less than 15V.
How do I choose the right transistor?
In choosing a suitable switching transistor:
- The transistor’s maximum collector current must be greater than the load current.
- The transistor’s maximum current gain must be at least 5 times the load current divided by the maximum output current from the IC.
What are the applications of bipolar junction transistors?
We know that a bipolar junction transistor is used as a switch, as an amplifier, as a filter, and even as an oscillator. Below is the list of other applications of bipolar junction transistor: BJT is used as a detector or also known as a demodulator. BJT finds application in clipping circuits so that the waves can be shaped.
What is the function of Glenn Poon model of transistor?
Transistor models such as the Glenn poon model are responsible for the distribution of the charge which explains the behavior of a transistor. Since Bipolar Junction Transistor is a three-terminal device, there are three ways to connect it within an electric circuit while one terminal is the same for both output and input.
What is the current gain of a common-emitter transistor amplifier?
The current gain of a common-emitter transistor amplifier with the load connected in series with the collector is equal to β. The voltage gain of a common-emitter transistor amplifier is approximately given here: Where “Rout” is the resistor connected in series with the collector and “Rin” is the resistor connected in series with the base.
What are the components of common emitter amplifier?
Common Emitter Amplifier The circuit shown on Figure 1 is called the common emitter amplifier circuit. The important subsystems of this circuit are: 1. The biasing resistor network made up of resistor R1and R2 and the voltage supply. VCC . 2. The coupling capacitor C1 .