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Recent content by sachinkp21587

  1. S

    Need to make a power supply that generates +24V, +12V, -12V, +5V, +3.3V DC supply.

    The design that i have attached above is for 1A fir each of voltage level generated.
  2. S

    Need to make a power supply that generates +24V, +12V, -12V, +5V, +3.3V DC supply.

    Mr. ArticCynda, this project is for professional level so i cannot do that. I need to design a power supply for each of ours engineers desk to be used upon.
  3. S

    Need to make a power supply that generates +24V, +12V, -12V, +5V, +3.3V DC supply.

    Attached is the Schematic i generated from https://www.poweresim.com/ I need the following information. 1. I need to tell the cost of transformer to the management. i really have no idea about what are the characteristics of the transformer and how to order it or find equivalent. I would like...
  4. S

    Need to make a power supply that generates +24V, +12V, -12V, +5V, +3.3V DC supply.

    At the max 2 simultaneous outputs will work. As far as i know the use of regulators will increase the heat dissipation. and bigger heat sinks will be needed. Also consider this, What will happen to a linear supply which is designed for 230V and is given 110V? The outputs will vary we will have...
  5. S

    Need to make a power supply that generates +24V, +12V, -12V, +5V, +3.3V DC supply.

    i need to make a power supply that generates +24V, +12V, -12V, +5V, +3.3V DC from 110/230VAC. I Have 0 experience in power supply design. Lets put questions one by one. 1. what type of supply i should go for? smps or linear power supply? and why?
  6. S

    Sensing current upto 5A from a 45VAC source using SenseFEt

    Hi all, i need to build a circuit to sense the AC current flowing to a load. The source can supply 5A at 45V ac. I need some simple and not bulky kind of solution. I think what i am in search of is SenseFET usage with virtual earth current sensing. Following are my questions. 1. Is there any...
  7. S

    output vrms from firing angle of triac......

    Hello all, i am trying to change the power to a ac load i.e. relay ( in proteus) by help of TRIAC. i am able to change the power as i checked it in the oscilloscope that the waveform is changing as per my firing pulses. Now my question is how to calculate the firing angle for generating known...
  8. S

    how does the data rate of a signal affects the traversal over a relay?

    Thank you for the instant and so relevant reply.
  9. S

    how does the data rate of a signal affects the traversal over a relay?

    i am using a relay with part number RA4-12W-K. i want to use it to make a ethernet switch using this relay. i do not know upto how much speed it will support. can anybody please guide me what factors are to be considered for high data rate support like 400Mbps ? how will a relay be affecting the...
  10. S

    accuracy test for LM3915 led bar graph driver

    Please guide in this regard also
  11. S

    accuracy test for LM3915 led bar graph driver

    2.50dB is approximated as 3dB ? Is int it over approximation? i mean .50db error added i would like to know that is there any way that i can only switch of or on the led in place of toggling the brightness - - - Updated - - - also please let me know the difference between LM3916 and LM3915...
  12. S

    accuracy test for LM3915 led bar graph driver

    I am using LM3915 for a application of mine i.e audio level detection. I am able to run the ic well but my doubt is that the data sheet says that it acts as per 3dB/Step. How i decode this is dt when we say 3dB change that means audio power has doubled i.e. in formula 10log(base10)(P2/P1), the...
  13. S

    problem using bit-fields

    it says 16bits - - - Updated - - - you are right alexan_e that what i think the compiler should work as per my knowledge. bt m not getting why is it taking 3 bytes for even 15 bits...
  14. S

    problem using bit-fields

    according to me the following code structure should take 6 byte i.e. (3bits *16variable)/8bits but in practical case its taking 8 bytes. how? i am using mplab c18 even if i am trying Then if unsigned int is 16 bits thn it should take 2 bytes, but its taking 3 bytes. Why?
  15. S

    Design a Dolby decoder AV Receiver

    Here all. is there anyone who has some knowledge over sta310 here? or have done some project? i need to make a audio player using that only.

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