"Pulsewidth modulation" Essays and Research Papers

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    Mr Humayun Kabir

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    Fever 104 Fever 104 FM is available in Delhi (October ‘06)‚ Mumbai (January ’07)‚ Bangalore (March ‘07) and Kolkata (January ‘08) with vibrant‚ youthful‚ creative and interactive programming! Fever 104 FM has lived up to the promise of ‘Its all about the music’ in the true sense of the term. From creating the best musical experience on radio with our 40 minutes non-stop music programme‚ to creating the Fever Music Mahotsav with A.R. Rahman‚ we try and give our audiences the best all-round music

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    Radio One

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    Radio One INC. This case involves an expansion of Radio One Inc. The company is evaluating several stations that are currently available due to a divesture that Clear Channel was required to complete. Radio One’s strategy is to be the number one urban- oriented music‚ entertainment‚ and information to African-American in as many major markets possible. With this opportunity Radio One can acquire an additional 12 stations in areas they have not been able to search before. The results of the expansion

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    Class D Amplifier

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    interpreted as numbers whereas in analogue signals the exact waveform matters.[1] [edit]Signal modulation The binary waveform is derived using pulse-width modulation (PWM)‚ pulse density modulation (sometimes referred to as pulse frequency modulation)‚ sliding mode control (more commonly called "self-oscillating modulation" in the trade.[2]) or discrete-time forms of modulation such as delta-sigma modulation.[3] The most basic way of creating the PWM signal is to use a high speed comparator ("C" in

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    which can power AC systems such as an induction motor (IM). It is required to produce a pure sinusoidal waveform for the proper functioning of the IM drive. This can be done by incorporating pulse width modulation (PWM) techniques. Technique used in generating a Pulse width modulation is that of the comparison of reference signal which is a sinusoidal waveform as required at the output and a triangular or carrier signal of high frequency. This digital technique is implemented

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    555 Timer Ic

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    Applications include timers‚ missing pulse detection‚ bouncefree switches‚ touch switches‚ frequency divider‚ capacitance measurement‚ pulse-width modulation (PWM) etc * Astable - free running mode: the 555 can operate as an oscillator. Uses include LED and lamp flashers‚ pulse generation‚ logic clocks‚ tone generation‚ security alarms‚ pulse position modulation‚ etc. * Bistable mode or Schmitt trigger: the 555 can operate as a flip-flop‚ if the DIS pin is not

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    Wcdma

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    ER02s16 03-12-04 12.31 Sida 16 WCDMA evolved—High-speed packet-data services Stefan Parkvall‚ Eva Englund‚ Peter Malm‚ Tomas Hedberg‚ Magnus Persson and Janne Peisa Compared to second-generation systems‚ one of the most important aspects of third-generation mobile systems is enhanced packet-data access. WCDMA Release 99 provides data rates of 384 kbit/s for wide area coverage and up to 2 Mbit/s for hot-spot areas‚ which is sufficient for most existing packet-data applications. However‚ as

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    i need help

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    and then disconnect the wires. 6. The cooler and the heat sink are the two major components of a processor cooler assembly. 7. CPU fan header on a current motherboard has 4 pins. 8. With a 3 pin fan connector you have lost PWM or pulse width modulation. ( reduces noise in a system ) 9. To determine the wattage capacity of a power supply: you add up the wattage requirements of all components required and add 30 percent. 10. A video card is the one component most likely to draw the most power

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    Constructing An Audio Player

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    Using Pulse-Width Modulation and Audio Sampling Techniques to Construct an Audio Player with a Field-Programmable Gate Array   John C. Greavu III University of Minnesota‚ School of Physics and Astronomy   I. INTRODUCTION 8-bit and 16-bit audio players were built by employing pulse-width modulation (PWM) techniques with a field-programmable gate array (FPGA). Basic PWM and audio playing methods are explained in detail. A sigma-delta modulation module‚ specifically‚ was programmed into a Basys

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    Lmlmm

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    Assume‚.for.example‚.that.the.encoder.generates.600.pulses. per.revolution‚.and.it.takes.000.motor.revolutions.to.move. the.platform.from.one.position.to.another‚.moving.the.platform. from.position..to.position.6.(5.positions).takes.5000.motor. revolutions.or.30‚000.encoder.pulses..In.most.practical. applications‚.the.frequency.of.these.pulses.is.too.high.for.them. to.be.counted.with.inputs.that.are.not.associated.with.a.highspeed.counter.. Interrupts. S7-200.PLCs.incorporate.instructions.for.use

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    Aptitude Test with Answers

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    Aptitude test 1. Find the nest term in series ? 25 16 9 4 1 0 ? Ans. (-1)2 = 1 2.  If (NM)2= RRM where N.M & R are distinct digits. Then possible values for R are (a) 1 (b) 2 (c) 3 (d) none of these Ans (b) -2 3. A man buys spirit at Rs. 60 per letter‚ adds water to it and then sells it at Rs. 75 per litter. What is the ratio of spirit to water if his profit in the feal is 37.5%? (a) 9:1 (b) 10:1 (c) 11:1 (d) None of these. Ans (b) 10.1 4. A certain quantity of

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