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- เผยแพร่เมื่อ 25 ก.ค. 2019
- #Amplifier
#Education
#Microproject
amplifier is basic building block of any public address system or any audio system. amplifiers are used to provide the strength to weak signals.consider the example of electrocardiogram i.e. ECG or thermocouple current that are very weak. amplifiers are used to amplify the amplitude of signals so that it can be used for analysis. in PA systems amplifiers are used to increase the amplitude of voice signals on y axis i.e. amplitude only. practically more that one stage of amplifiers are used to provide better output. the factor to be considered during designing of multi stage amplifier is coupling technique. basically there are three techniques of coupling one stage to another in another words coupling output of one stage to input of second stage, are direct coupling, rc coupling and transformer coupling. each coupling technique have its own advantage, disadvantages and applications. direct coupling techniques are used to amplify very weak signals like ecg. rc and transformer couplings are used in audio amplifier applications.
Basic electronics and applied electronics practical single stage CE amplifier on breadboard. to understand this practical you must know the breadboard i.e. horizontal and vertical connections on the breadboard. after video of simulation of single stage ce amplifier this video is made for hands on practical of the same where same valued components are used.
educational video on electronics practical transistor amplifier. this circuit is useful for MSBTE electronic microproject also.
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Some clipping has occured in negative cycle right
Hmm...its due to DC offset control on FG
expt: construction of single stage transistor amplifier circuit and measurement of voltage, gain, and output impedance, how to measure these sir can tell ?
For measuring voltage refer this video
th-cam.com/video/TEObI0fx1a8/w-d-xo.html
After measurements you can calculate gain (output/input)
@@MindsRiot how about output impedence measuremt?
Why output wave form clipped when we give sine wave as input signal. how to remove output sine wave clipping and why it's happening.please reply
Keep frequency less to avoid chopped output (looks like square wave)
What is your input frequency?
@@MindsRiot sine wave as input but output is clipped like in video
Frequency?
1000 hz
What we conclude in this practical
Hence we can conclude that, single stage CE amplifiers can amplify input signal and output signal is 180 degree out of phase
Two stage CE amplifier on PCB
Build two stage CE amplifier on PCB kaise kare
Components kon konte ahe
First try on breadboard.
2 Transistors, 8 resistors, 5 capacitors, breadboard, connecting wires. Vales of components are given in video or check in lab manual
Thanks sir
Respected Sir,
Could you tell me why the output wave is clipped pls reply sir
And how can we avoid this problem 🙏
If input frequency is high, we get clipped (like square wave) waveform at output. Keep input frequency less to get proper output. Let me know the result after doing
@@MindsRiot Thankyou so much sir , is this suitable for BSc Physics final year project?
Can't say, it's upto related teacher
@@MindsRiot Ok Sir. I shall update after talking to my teacher 😊
Which type of biasing we used in this practical/ ckt
Voltage divider biasing is used. Voltage divider biasing can be formed by using resistors R1 and R2.
Assalam o alaikum sir.. Kindly yea bta dain k series main ce ur re kaisy lgy gain...
Emitter capacitor CE and Emitter resistor RE are connected in parallel, not in series.
Thanks for asking question
G sir...... Agr series main kagny hun the then kaisy lgy gain
Asmr vala feel aa gya bhai Mai to so gya dekhte dekhte😂😂
sir inputs per kitna volts
Ac dna h ?.kindly help!......
For input, function generator is used with 100hz to 10khz and few millivolts Vpp. For transistor biasing, 5v or 12v DC is used.
You can watch following video in which I simulated the same circuit on Multisim software, I hope it works for you
th-cam.com/video/xljvMjY2p2I/w-d-xo.html
Thanks sir .❤...sir agar ham 5v Ac with 50Hz Da to circuit kam kara gya .?..
@@khushimuhammadkhan4911 5v AC as input signal is not recommended. First start from 10mv and then increase voltage step by step. Before going to test on breadboard, please simulate the circuit on simulation software, it will give you rough idea
Thanks sir .❤
Hello sir
Haam rasistor aur capacitor ki value kaise decide karenge🤔
Interpretation of result is ..........
Same as conclusion
Ok
Sir please aap electronics ke video dalo
Ok, please suggest topic you want
How to know the value of capacitor to be used in circuit, like you use 0.1uF for Cin and Cc why?
By considering value of ripple to reduce
@@MindsRiot can you make video on it please.
Yes sure, need some time.
@@MindsRiot thank you so much
Shubham kadam
Bad amplificaton