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Recent content by gobi1990

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    Understanding sampling theorem

    An analog signal is sampled at duration of T second, after that we get sampled time domain signal. FT of that sampled signal gives spectrum. What is that spectrum.? For one time sample in TD, gives one spectrum.?
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    How phase difference is achieved in 2ph and 3ph.

    How the phase difference are achieved in 3 phase alternator(120 degree) and 3ph to 2ph Scott transformer (90 degree)?
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    Learning Fourier Series

    Why complex quantity(i or j) presents in FT/FS? Is it because of our sample signal is complex or this FS/FT is a complex transform. I am not able to understand this. Please elaborate this. Thanks!!
  4. G

    Learning Fourier Series

    Then can we say it like, AC Generators produce odd signal not even signal.? Am i forming it correctly? If sin and cos are same function then why AC voltage is preferred to produce in sin but not in cos.? Thanks!.
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    Learning Fourier Series

    Hi Thanks for the reply. To account also for even signal we are using cos function.I understand it now. Thanks Andre Below is the formula. I just understood that. Thanks
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    Learning Fourier Series

    Hi, Thanks for the reply. If sin and cos represents the same function then why both term mentioned separately in the formula, instead we can just put another sin in place of cos or why need of same function twice in formula. Why we need to put cos term badly and why sin term is mentioned every...
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    Learning Fourier Series

    Hi, I am learning fourier series, and i have couple of doubt to ask. As per my understanding FS is for analyzing periodic signal in Frequency domain. In Frequency domain we can able to separate each frequency with its amplitude which we cant do in time domain. With Use of this Frequency...
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    Generate 200KHz PWM from PIC MCU

    Hi , we have to assume at starting any value (between 0 to 1) and if you want to increment it do it in code through a conditional statement by example duty cycle increments when a key is pressed . PR2 is the period register .If you use the formula which i posted in previous post you will get a...
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    Baud rate and bit rate

    for easy explanation see this https://www.circuitstoday.com/bit-rate-vs-baud-rate-the-common-misconception - - - Updated - - - for easy explanation see this https://www.circuitstoday.com/bit-rate-vs-baud-rate-the-common-misconception
  10. G

    Generate 200KHz PWM from PIC MCU

    step to create pwm in pic 16f877a : assuming Fosc=20MHZ 1) calculate required period register value (between 0 to 255) using PR2= ( Fosc / ( 4*Fpwm*TMR2PS ) -1 ) this formula . 2)calculate dutycycle value which is 10 bit so value varies from 0 to 1023 using this formula pwm duty cycle = (...
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    Looking for embedded job in chennai

    I completed BE EEE . I have done project in microcontroller and power electronics . My final year project is design of charge controller for hybrid(wind and solar) power system . I am looking for a full time/part time job in embedded field .
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    Looking for embedded job in chennai

    Hi , Is there any vacancy in embedded system at Chennai ? I have basic knowledge on embedded c , pic microcontroller and power electronics.
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