The overall frequency response of a stagger tuned amplifier is obtained by adding the induvidual response together. Single tuned amplifiers consist of only one tank circuit and the amplifying frequency range. But each stage is tuned to the same frequency, one tuned circuit in one stage. This scheme is used on amplifier stages that are transformercoupled rather than capacitor coupled. The advantage of stagger tuned amplifier is to have a better flat.
The uploader or another editor requests that a local copy of this file be kept. Design of stagger tuned double tuned amplifiers for arbitrarily large bandwidth. Appendix h design of stagger tuned amplifiers as mentioned in section 17. Nov 06, 2016 the following are among the applications of tuned amplifiers. Other tuning schemes are sometimes called single tuned to distinguish them. A common emitter amplifier can be converted into a single tuned amplifier by including a parallel tuned circuit. Ec6401 electronic circuitsii previous year question papers february 21, 2018 may 24, 2019 syed afrith b.
Electronic circuit analysis eca questions and answers pdf. Mar 14, 2016 on this channel you can get education and knowledge for general issues and topics. Since resonant frequencies are displaced it is called stagger tuned. The signal voltages at the end of tuned base coil are equal and out of phase. So, an amplifier circuit along with a selection, such as a tuned circuit makes a tuned amplifier. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. It is a circuit in which two single tuned cascaded amplifiers having certain bandwidth are taken and their resonant frequencies are adjusted that they are separated by an amount equal to the bandwidth of each stage. Therefore, class c amplifiers are also called tuned amplifiers. Staggered tuning where each amplifier stage is tuned to a slightly different frequency. A more detailed ex planation of reactance and impedance can be found in understanding amateur radio tion the final amplifier tank, for example. Staggered tuned amplifier definition is an amplifier that is used to improve the total frequency response of the tuned amplifier. At this condition, the tuned circuit offers high reactance to the signal frequency.
The remaining circuit details are same as in the single tuned amplifier circuit, as shown in the following circuit diagram. The crosscoupled lc oscillator, popular in ic design, has been added to chapter 18. Question bank ec6401 electronic circuits ii semester. Both the primary and secondary coils of the transformer are tuned. It is a multistage amplifier which has one parallel tuned circuit for every stage but tuned frequency for all stages are slightly different from each other. Stagger tuned voltage amplifier electronic circuit analysis and design. What are the limitations of a single tuned amplifier. The high frequency signal which has to be amplified is given to the input of the amplifier.
The poles of the circuit are easy to manipulate to achieve the desired response because of the amplifier buffering between stages. The basic tuned amplifier circuit looks as shown below. To make room for this new material, the subsection on stagger tuned amplifiers has been removed and placed in appendix h, on the website. Whether this is a white band amplifier or a tuned amplifier, rf amplifier. A common emitter configuration amplifier can be used as a single tuned amplifier which includes the parallel tuned circuit. Class c amplifiers are used primarily in highpower, highfrequency applications such as radiofrequency transmitters. Use of miniature tubes in stagger tuned video intermediatefrequency systems, 1947 december 15. Feb 20, 2016 stagger tuned voltage amplifier electronic circuit analysis and design. The advantage of stagger tuned amplifier is to have a better flat, wideband characteristics in contrast with a very sharp, rejective, narrow band characteristics of synchronously tuned circuits tuned to same resonant frequencies. In this we use two mutually coupled tuned circuits for every stage both of tuned circuits are tuned at same freq. The following are among the applications of tuned amplifiers. A twostage stagger tuned amplifier will have a gain 3 db less than a synchronously tuned amplifier.
Synchronous tuning explained in more detail in the staggered tuning article where each amplifier stage is tuned identically. Designing and optimization to the performance of multi stage. Analysis of single tuned amplifier, double tuned, stagger tuned amplifiers. A high qfactor circuit will give a high voltage gain but will also reduce bandwidth as b. Electronic circuit analysis pdf notes eca pdf notes. When an amplifier circuit has its load replaced by a tuned circuit, such an amplifier can be called as a tuned amplifier circuit. An amplifier which amplifies a specific frequency or a narrow band of frequencies is called a tuned voltage amplifier. For the staggertuned amplifier, note that the gain at. Electronic circuits unit wise viva short questions and. Electronic circuit analysis eca questions and answers pdf free download mcqs interview questions objective type viva lab 4th final year class notes study. Thus the tuned amplifiers function is to select the desired rf signal of a particular broadcasting station and rejecting all other signals. Linear theory of a gyrotwystron with staggertuned cavities. Tuned amplifiers are mostly used for the amplification of high or radio frequencies.
So, there occurs a need for a circuit which can select as well as amplify. Discuss the quality q factorof a tuned amplifier, the factors that affect its value, and its relationship to amplifier bandwidth. Amplification of the selected signal to a suitable voltage level. These are amplifiers where the rfc or resistor load is replaced by a tuned circuit from our band pass filters or low pass filters tutorials. It needs a number of tuned circuit operating in union. Single tuned amplifiers pdf 8 relation between q and band width. Pdf electronic circuit analysis pdf notes eca pdf notes. Staggered tuning is a technique used in the design of multistage tuned amplifiers whereby each stage is tuned to a slightly different frequency. The following circuit diagram shows a single tuned. Stagger tuned amplifiers are used to improve the overall frequency response of tuned amplifiers. Tuned amplifiers are amplifiers involving a resonant circuit, and are.
Effect of cascading double tuned amplifiers on bandwidth, stagger tuned amplifiers, stability of tuned amplifiers. Ec6401 electronic circuitsii previous year question. An amplifier that uses staggered tuning to give a wide bandwidth explanation of staggertuned amplifier staggertuned amplifier article about staggertuned amplifier by the free dictionary. This file contains additional information such as exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. It finds common use in devices that work with radio frequency signals such as radios, televisions, and other types of communication equipment. In stagger tuned amplifiers one or more tuned amplifier stages are cascaded with each stage having different tuned frequencies, i. Hence, the tuned amplifiers serve the following two purposes. An amplifier that uses staggered tuning to give a wide bandwidth explanation of stagger tuned amplifier. The values of capacitance and inductance of the tuned circuit are selected such that its resonant frequency is equal to the frequency to be amplified.
Describe the frequencyresponse curves of the lowpass, highpass, bandpass, andbandstop notchfilters. To obtain high efficiency, final rf power amplifiers for single sideband. Click here to visit our frequently asked questions about html5. This file is licensed under the creative commons attributionshare alike 3. Stagger tuned voltage amplifier electronic circuit analysis. It can be shown mathematically that by tuning successive single tuned stages of an amplifier to different frequencies or, as it will be referred to in this application, stagger tuning, one may obtain an amplifier the gain of which has an absolute value proportional to the gain factor 1 where x is a function of frequency as before, and n is the. Draw the circuit and explain the operation of a stagger tuned amplifier. A tuned circuit is capable of amplifying a signal over a narrow band of frequencies that are centered at resonant frequency.
Compare and contrast the frequencyresponse characteristics of ideal and practical tuned amplifiers. It needs a number of tuned circuits operating in union. Stagger tuned amplifiers use a number of single tuned stages in cascade. It uses the phenomena of resonance, the tank circuit. Request pdf designing and optimization to the performance of multi stage tuned amplifier this paper report describes the performance of a multi stage. Electronic circuits ii single tuned amplifier exam study. While the license of this file may be compliant with the wikimedia commons, an editor has requested that the local copy be kept too. The overall frequency response of a stagger tuned amplifier is. Stagger tuned voltage amplifier electronic circuit. Request pdf a stagger tuned transimpedance amplifier a new transimpedance amplifier tia design procedure using stagger tuning with inverted transformer coils is described in this paper. A simple transistor amplifier circuit consisting of a parallel tuned circuit in its collector load, makes a single tuned amplifier circuit. Single tuned amplifiers are multistage amplifier circuit that employs a parallel tuned circuit as a load.
Draw the circuit diagram of it and explain its working. Classification of amplifiersdistortion in amplifiers, analysis of ce, cc, and cb configuration with simplified hybrid model, analysis of ce amplifier with emitter resistance and emitter follower, millers theorem and its dual, design of single stage rc coupled amplifier. Doubled tuned voltage amplifier electronic circuit analysis and design duration. Benha university faculty of engineering at shoubra l. The name stagger tuned amplifier comes from the fact that the resonant frequencies of different tuned circuits are displaced or staggered. Single tuned amplifier pdf 8 relation between q and band width. In addition to reading the questions and answers on my site, i would suggest you to check the following, on amazon, as well. In coupling a tuned rf power amplifier to its load the antenna or antenna feed line. What are the advantages of stagger tuned amplifier. Also explain different stages of simplification of the equivalent circuit of a double tuned amplifier. This selection is done by using a circuit called as tuned circuit. Pdf linear theory of a gyrotwystron with staggertuned. Mar 16, 2019 multiple choice questions and answers on transistor tuned amplifiers. The electronic circuit analysis notes pdf eca notes pdf book starts with the topics covering classification of amplifiers, analysis of cascaded rc coupled bjt amplifiers cascode amplifier, general frequency considerations, mos small signal model, classification of feedback on amplifier characteristics, classification of oscillators, class a.
The circuit shown consists of two stages of amplifier in common emitter topology. A common emitter amplifier can be converted into a single tuned amplifier by including a parallel tuned. Check out the amazon electronic component packs page what are tuned circuit amplifiers. Dec 24, 2017 single tuned amplifier are required to be highly selective,but high selectivity requires a tuned circuit with a high qfactor. Stagger tuned amplifier stagger tuned amplifiers are used to improve the overall frequency response of tuned amplifiers. Find out information about stagger tuned amplifier. Even in a design that is intended to be synchronously tuned, some staggered tuning effect is inevitable because of the practical impossibility of keeping all tuned circuits perfectly in step and because of feedback effects. Staggered tuning is a technique used in the design of multistage tuned amplifiers whereby. Request pdf a stagger tuned transimpedance amplifier a new transimpedance amplifier tia design procedure using stagger tuning with inverted transformer coils. Introduction, q factor, small signal tuned amplifier, effect of cascading single tuned amplifiers on bandwidth, effect of cascading double tuned amplifiers on bandwidth, stagger tuned amplifiermm stability of tuned amplifiers. Both staggered tuning and synchronous tuning circuits are easier to tune and manufacture than many other filter types.
The tuner circuit is nothing but a lc circuit which is also called as resonant or tank circuit. It also produces a sharper transition from the passband to the stopband. Recalling the gain function of a single tuned amplifier as given below 1 and also the instantaneous frequency of the fm wave as 2 the output of the single tuned amplifier is then given by 3 where a c is the strength of the carrier and q is the quality. The section on precision diode circuits has been removed but is still made available on the website. Pdf ec8452 electronic circuits ii ecii books, lecture.
A staggertuned transimpedance amplifier request pdf. Stagger tuned amplifiers are usually designed so that the overall response exhibits maximal flatness around the centre frequency. The advantage of stagger tuned amplifier is to have better flat, wideband characteristics. The overall frequency response of a stagger tuned amplifier is obtained by adding the individual response together. Gate preparation, nptel video lecture dvd, electronicsandcommunicationengineering, electroniccircuitsii, singletunedamplifier, amplifier feedback, amplifier structures, negative feedback properties, feedback properties, feedback topologies, topologies, topologies feedback, feedback amplifiers, amplifiers feedback, series feedback, shunt feedback, series feedback, series and shunt. A double tuned amplifier is a tuned amplifier with transformer coupling between the amplifier stages in which the inductances of both the primary and secondary. A tuned amplifier is a type of electronic device designed to amplify specific ranges of electrical signals while ignoring or blocking others. In comparison to synchronous tuning it produces a wider bandwidth at the expense of reduced gain. On this channel you can get education and knowledge for general issues and topics. Multiple choice questions and answers on transistor tuned. This is achieved in radio receivers with the help of tuned amplifiers. Your browser does not currently recognize any of the video formats available. This image or media file may be available on the wikimedia commons as file.
Plot of frequency response of a stagger tuned tuned amplifier showing the increase in bandwidth over the stage bandwidth. What the advantages are of stagger tuned amplifier. This scheme maximises the amplifier gain but has narrower bandwidth than staggered tuning. E electronics and communication engineering, second year 4th semester ec6401 electronic circuitsii previous year question papers for the regulation 20. Tuned amplifiers are the amplifiers that are employed for the purpose of tuning. Mention the applications of class c tuned amplifier. The tuning circuit l 1 c 1 is tuned to the input signal frequency. This refers to the coil and capacitor used in the output tuned circuit of the amplifier.
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