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Recent content by ahamshubham

  1. ahamshubham

    Cascade amplifier: producing wrong frequency at second stage

    Found a different reason here: **broken link removed** Will use ceramic capacitors.
  2. ahamshubham

    Cascade amplifier: producing wrong frequency at second stage

    Okay, so I did not see your post. But either randomly or due to the fact betwixt posted that I should keep value of my capacitances near 100nF, I replaced the 47uF capacitance (C6 in your diagram) with a capacitance of 2.2uF. After that, my circuit started giving the required amplified output...
  3. ahamshubham

    Cascade amplifier: producing wrong frequency at second stage

    Sorry, that was a mistake. Actually I wanted to send the picture in the attachment. So, my circuit after alterations based on your suggestions looks like this: **broken link removed** I will make the circuit and will tell you the results. - - - Updated - - - Yes, it is a multisim simulation...
  4. ahamshubham

    Cascade amplifier: producing wrong frequency at second stage

    I am building a receiver circuit which receives a signal of approximately 3.6MHz. The signal received is of very low amplitude (5mV) so I had to use an amplifier. When I couple the input to a single BC547B amplifier, the output becomes an amplified version of the signal around 50mV. But, when I...
  5. ahamshubham

    Why is high frequency resolution needed at low frequencies?

    I was reading this article on Wavelet Transforms and I encountered this statement which said that in discrete time wavelet transform, lower frequencies are better resolved in frequency; Can anyone explain what is the reason behind high frequency resolution at low frequencies? The article is...
  6. ahamshubham

    matlab problem with find duplicates in matrix

    To explain the first code that you have posted I have added comments: A = [1 3 2; 4 5 1; 3 1 1] A_unique = unique(tril(A, -1)); %tril(A,-1) generates an intermediate array I which has the same elements as A below the %main diagonal but the other elements are...
  7. ahamshubham

    [SOLVED] Verilog Best Manual for Beginner

    Verilog HDL by Samir Palnitkar
  8. ahamshubham

    Please help me identify this component

    I think that it is a melf resistor......I am although not very sure about the value of the resistance....
  9. ahamshubham

    remote frame in can bus in msg transmission

    Generally, every receiver and transmitter has an ECU (Electronic Control Unit). The electronic control unit has a microcontroller that performs all the basic data transfer operations based on the requirements. This microcontroller works based on some program fed into it and whenever there is...
  10. ahamshubham

    [MOVED] Why only group 3 and 5 elements are used for silicon doping

    I think that group 2 and group 6 elements have more tendency to lose two electrons and gain two electrons respectively. They would try to become ions rather than form four covalent bonds and act as dopants. I think this might also help...
  11. ahamshubham

    remote frame in can bus in msg transmission

    CAN bus is used for data transfer between several electronic devices in a vehicle. Generally, data is sent by one device(transmitter) in the form of a data frame which is received by another device(receiver) for which the data is meant. Also, the receiver can itself request for data from the...
  12. ahamshubham

    Help with OFDM:trouble with orthogonality

    Thank you very much. I found your answer quite helpful but can I get a more mathematical proof kind of somewhere explaining it......
  13. ahamshubham

    Charge and current relationship

    It closely represents the charge on a capacitor which is being charged by a battery through a resistor..... I hope this link will help you better...
  14. ahamshubham

    Help with OFDM:trouble with orthogonality

    I am new to OFDM and I did not understand the concept of orthogonality being used in OFDM...... In OFDM, the channel is divided into bands with different carrier frequencies and these carrier frequencies are orthogonal to each other so they do not interfere with each other. How does this take...

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