EC2151 NOTES PDF

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EC ELECTRIC CIRCUITS AND ELECTRON DEVICES the equivalent circuit of UJT and explain its operation. Write short notes on light activated SCR. 2nd Semester CSE Notes: 1. Basic civil & Mechanical Notes and Question answers – View. 5. Electron Devices & Electric circuits (EC) – Unit 1 – View /. PH Engineering Physics 2 Anna University Notes: PH Engineering notes (EM notes – ME Notes) – DOWNLOAD EC

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Official Notes Add contents here Notes from other sources Add contents here Model question papers Add contents here Previous year question papers Add contents here Useful links Add contents here. So, it is called as Unipolar device. It is applicable only for computing voltage and Current responses. Conductivity of a semiconductor Each hole-electron pair created two charge carrying particles is formed. The gain of a highly resonant circuit attains a sharp maximum or minimum at its resonant frequency.

SCR size is very compact.

Those terminals are source, gate and drain. VIT University entrance exam for postgraduate stud Q factor The quality factor, Q, is the ratio of the reactive power in the inductor or capacitor to the true power in the resistance in series with the coil or capacitor. The carrier inversion is the first requirement of lasing. Anna University Department of Civil Engineering B. It is made of thin layer of semiconductor material cadmium sulfide.

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The optical feedback and the confinement of photon in an optical resonator are the second basic requirement notees lasing. It also exhibits a negative resistance characteristic which allows it to be used as an oscillator.

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It is achieved at the PN ex2151 by providing the conduction bandwidth electrons from the N-doped side and the Valence band with the holes from the P-doped side. It reaches at the junction J2 breakdown.

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Applications of LED Used for numeric display in pocket calculators. Reverse Characteristics The reverse characteristic is obtained by reversing the connections of the d.

SCR characteristics It is the relationship between the anode —cathode voltage and anode current at different gate current. Adjust the gate current to any suitable value. Super Position Theorem is not valid for power responses.

Describe the transistor switching times. It is also called as varicap or voltacap. It combines a photodiode and phototransistor.

Second Semester Anna University lecturer notes

Advantages of LED They are smaller in size. Therefore there are two conditions which are limiting the reverse voltage swing and the capacitance variation. Principles of compiler design—Unit 1—Question Bank Series Resistance Two elements are in series if the current that flows through one must also flow through the other. Changing anode current by means of momentarily series or parallel switching arrangement.

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If we consider a circuit containing storage elements which are independent nnotes sources, the response depends upon the nature of the circuit, it is called natural response. The breakdown voltage can be selected with the amount of doping.

Its intensity can be controlled easily. State and explain Superposition theorem.

EC ELECTRIC CIRCUITS AND ELECTRON DEVICES

The carrier inversion is the first requirement of lasing. SCR characteristics It is the relationship between the anode —cathode voltage and anode current at different gate current. The gate is also connected to a metal contact surface but remains insulted from the n-Channel by a very thin layer of dielectric material, Silicon Dioxide.

It consists of a piece of semiconductor material silicon or germanium. The optical feedback and the confinement of notew in an optical resonator are the second basic requirement of lasing.