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DIY Electrical Electronics Projects, Thanjavur (2026)

01/02/2019

Wien Bridge Oscillator: We have already discussed about various transistor based oscillator circuits in our previous posts. In this short post, let us discuss about How Wien Bridge Oscillator Works? Before proceeding further let us refresh about the various oscillators Types of Oscillator Circuits - Basics, Conditions, Block Diagram How Tank Circuit works? – Tank Circuit working principle [ 340 more words ]

Wien Bridge Oscillator is the most frequently used audio oscillator.. output will not be affected by circuit fluctuations... standard oscillator circuit of all frequencies in the range of 10Hz

01/07/2018

FET Applications: What are the various applications of the Field Effect Transistor? In this short post let us discuss about the various applications of FET - Field Effect Transistor. Before proceeding further it is good to refresh about the basics of FET. The Field Effect Transistor (FET) is a semiconductor device which depends for its operation on the control of current by an electric field. [ 250 more words ]

FET has high input impedance and low output impedance... FET occupying less space and easy to fabricate, it is used in digital circuits in computers, L*D and memory circuits... FET Applications - Field Effect Transistor Applications

10/05/2018

Tunnel Diode Oscillator: We have already discussed that a tunnel diode is always operated in the negative resistance region. When operated in negative resistance region, the tunnel diode works very well as a oscillator. In this post let us discuss about one of the major applications of the tunnel diode (ie, tunnel diode based oscillator). Before proceeding further it is highly recommended to refresh about the… [ 438 more words ]

Tunnel Diode Oscillator: We have already discussed that a tunnel diode is always operated in the negative resistance region. When operated in negative resistance region, the tunnel diode works very well as a oscillator....

25/04/2018

Comparison of N Channel and P Channel MOSFETs The P-channel enhancement MOSFETs were very popular, because it was much easier and cheaper to produce than the N channel device. But now a days these difficulties have overcome and mass production of N-channel MOSFETs becomes easier. Thus the N-MOSFETS have replaced PMOSs and P-MOSFETs have almost become obsolete. The hole mobility is nearly 2.5 times lower than the electron mobility. [ 402 more words ]

Have higher packing density, leads to small size.. Comparatively low packing density... Difference Between N Channel and P Channel MOSFETs.. comparison of NMOSFETs and PMOSFETs... what is the difference between P Channel and N Channel MOSFETs... what is the difference between P MOSFET and N MOSFETs.

19/04/2018

How Colpitt’s Oscillator works? Various commonly used transistor based oscillator circuits are Tuned collector Oscillator Colpitt’s Oscillator Hartley Oscillator Phase Shift Oscillator Wien Bridge Oscillator Crystal Oscillator All these oscillators have the same function ( ie, generating continuous undamped oscillations). But the major difference between them is the method by which energy is supplied to the tank circuit to compensate the losses. [ 399 more words ]

A transistor amplifier with proper positive feedback can act as an oscillator. (ie can produce oscillations without any external signal source). Transistor based oscillator.. How Colpitt’s Oscillator works? Phase shift of 180° is produced by the transistor.. further 180° phase shift is produced ...

13/04/2018

Relation between Electrical and Thermal Units: In this short post let us discuss about the relation between Electrical and Thermal Units. Joule's Law of Electric Heating: The amount of work done or energy required to maintain a current of 1 amperes passing through a resistance of R ohms for 1 second is Workdone = (I2R).t joules = VI.t joules = V2t/R joules [ As I = V/R ] [ 199 more words ]

Joule's Law of Electric Heating: The amount of work done or energy required to maintain a current of 1 amperes passing through a resistance of R ohms for 1 second is Workdone = (I2R).t joules 1 horse power ( metric) = 75 m-kg/sec..... Relation between Electrical and mechanical units

07/04/2018

Crystal oscillator Tutorial: In this post let us discuss about the basics of crystal, How it works in electronics circuit?, equivalent circuit, frequency response and its application as a oscillator in detail….Before proceeding further, it is good to refresh about the basics of oscillator circuits & how tank circuit produces oscillations? Quartz Crystal Basics: What is piezoelectric effect? What is piezoelectric crystal? [ 626 more words ]

What is piezoelectric effect? What is piezoelectric crystal? Frequency response of the Crystal.. Crystal Equivalent circuit.. Quartz crystal Basics... Transistor based crystal oscillator is modification of collpit’s oscillator..Crystal oscillator - Basics, Working, Frequency Response, Pros & Cons....

17/03/2018

Tuned collector oscillator: Basics, Working Principle, Circuit Operation We know that, if tank circuit and feedback circuits are properly connected, then a transistor can work as an oscillator to produce continuous undamped oscillations. Commonly used transistor oscillators are given below: Tuned collector oscillator Colpitt’s oscillator Hartley oscillator Phase shift oscillator Wien Bridge oscillator Crystal Oscillator All these oscillators are having same function of producing continuous undamped output. [ 391 more words ]

How Tuned collector oscillator works? - Circuit Operation, Working Principle... The frequency of oscillation is the frequency is depends on the values of L1 and C1... All these oscillators are having same function of producing continuous undamped output. But the main difference between them is the m...

10/03/2018

How Tank Circuit Works? - Tank Circuit Working Principle Tank Circuit - Definition: A circuit which produces electrical oscillations of any desired frequency is called as a tank circuit or oscillatory circuit. A tank circuit consists of a parallel combination of capacitor and inductor. In this post let us understand how does the tank circuit work in LC type oscillators? [ 453 more words ]

A tank circuit consists of a parallel combination of capacitor and inductor... produces electrical oscillations of any desired frequency is called as a tank circuit or oscillatory circuit... If C has large value, it takes more time to charge and discharge. So the frequency will be less... How Tank C...

13/01/2018

Seven segment display (SSD) - Tutorial: One of the most common applications of LED is Seven Segment Display. In this short post let us see How Seven segment display works? We have seen the 7-segment display in our day-to-day life ( ex: basic calculator, digital clock, energy meter displays). The following figure shows the front of a seven segment display. [ 370 more words ]

7 LEDs form 7 segments... common cathode type, common anode type connection.. current limiting resistors are connected in series with the LEDs.. How Seven segment display works? If a particular LED is forward biased, that LED will glow and produces a bar of light..

10/01/2018

What are the Differences Between BJT and FET? We have already discussed about the basics of BJT and FET. In this post, let us see the comparison of BJT with FET. It is recommended to read about how BJT works and How FET works.... The differences between the Bipolar Junction Transistor and Field Effect Transistor are listed in the following table. [ 375 more words ]

BJT is Bipolar device, cheaper to produce, occupy more space, noisy operation current controlled device ( output current is controlled by base current) whereas FET is unipolar device, occupy less space, voltage controlled device (output current is limited my input gate voltage).. Difference Between�...

07/01/2018

Types of Oscillator Circuits In this short post, let us discuss about block diagram of the oscillators, various conditions to me for sustained oscillation, various types of oscillator circuits... Oscillators - Definition Any circuit which is used to generate ac voltage without ac input signal is called an oscillator. The oscillator circuit is received energy from a DC source to generate AC voltage. [ 425 more words ]

Any circuit which is used to generate ac voltage without ac input signal is called an oscillator. What are the conditions to be met to generate Oscillator wave forms? What are the various types of Oscillator Circuits? Classification of Oscillators:

DIY Electrical Electronics Projects

01/02/2019

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10/05/2018

25/04/2018

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13/04/2018

07/04/2018

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10/01/2018

07/01/2018

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