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  1. shekhar_dandya

    Shift Registers

    Hi enigma one, So this again means u require 1 million locations to store
  2. shekhar_dandya

    Shift Registers

    Hi Enigma one, FIFO of what size? -Shekhar
  3. shekhar_dandya

    Shift Registers

    Hi Everyone, This was the question asked to one of my collegue in interview: Data is comming on a serial line at 1Mbps.I want to delay this data by 1 sec .How do I acomplish it? Using shift register with a 1Mhz clock and 1 million+1 D flip flops. This is my answer. Is there any more elegant...
  4. shekhar_dandya

    problem with a rectifier

    Hi Audioguru, That may be the case. I have a rather cheap DMM with only 2 ranges for a.c 750V,200V. So I just wanted to confirm that my circuit is not at fault.Can I continue using the circuit? Or else this false signal(If it exists) may damage the load? -Shekhar
  5. shekhar_dandya

    problem with a rectifier

    Hi AudioGuru, Thanks for the soldering tips.I did not make a PCB for my circuit.I just used a general purpose board that provides only mechanical stability to components and soldering pads to adhere the components to the board. As far as your high power X'mitter speculation goes,I have our city...
  6. shekhar_dandya

    problem with a rectifier

    Hi Kevin, I am using a TO 220 package and have connected pins properly. I have no problems with d.c. How does 317 ener voltage follower mode ? I have used a 240 ohm resistor from o/p tp adj and a 330ohm in series with a pot of 4.2K from adj to ground.I have also pput a 10uF cap at the o/p to...
  7. shekhar_dandya

    problem with a rectifier

    Hi everyone, Well I did not require to use caps to earth for secondary.Its not showing any dc voltage now.But at the o/p I still get 6V ac when dc o/p is 3V and 56V ac when dc o/p is 25V(both no load.).Also the conditions did not improove with a load of 330 ohm resistor as a load. when the DMM...
  8. shekhar_dandya

    problem with a rectifier

    Hi Guys again, This time I checked the o/p of my 317 by keeping the DMM knob on 'AC -V'. WHen I connect positive of DMM to positive supply terminal and -ve to ground,I see 29V AC(RMS?).When I reverse the connections(+ve t o ground & -ve to +ve) my DMM shows 0V! what exactly is the nature of...
  9. shekhar_dandya

    articles on USB

    Hi everyone, I needed some docs /tutorials related to USB basics Thanks -Shekhar
  10. shekhar_dandya

    tutorial sites for newbies

    This is amazing stuff.I have got the first two volumes I did not know there is more! Thanks electronics-lab :D
  11. shekhar_dandya

    problem with a rectifier

    Hi Alun, I am trying to solve the problem as you told in the image.But by mistake I bought 100uF caps.could they help or should I strictly connect 100nF caps? Exactly what is the theory behind earthing the interwinding capacitance?how about using resistors instead of caps?do the caps form a...
  12. shekhar_dandya

    Why 50 50 50 maximum power

    Hi kevin, Considering the thevnin equivalent with a voltage source in series with a source resistance and a series load resistance,my theory goes like this: If the load impedence is larger than the source impedence(open circuit)then power transffered to the load is zero.P=VI=0. If the load...
  13. shekhar_dandya

    problem with a rectifier

    Hi All, A Happy 2005. I recently made a small adjustable power supply with a voltage range from 3V to 24V and a current range of 1A using the rectifier-filter-LM317 combination. I tested its outpput on a multimeter with its knob on"DC V" and it showed me the correct voltages.Then I turned the...
  14. shekhar_dandya

    Interpreting Datasheets

    Hi all A Happy New Year :) Thanks Suraj for the book.I will definitely try to find it in my library. AudioGuru, Thanks for such a valid suggestion.
  15. shekhar_dandya

    Newbie question on terminology

    Hi MP, Merry Christmas :) I just wanted to know what is the voltage level across the High-Z terminals?
  16. shekhar_dandya

    Interpreting Datasheets

    Hi Audioguru, Merry Christmas. :) I have put an emitter resistor to ground and also biased the base of x'tor from collector.This improoves dc stability.But for ac conditions,emitter is bypassed to ground by an emitter capacitor to enhance ac voltage gain.This would again make the gain...
  17. shekhar_dandya

    Newbie question on terminology

    Hi kevin, What is the difference between an open circuit and a 3 state?Suppose I have a memory device with tri state I/o buffers.If I tristate output buffers (which may be having valid voltage levels on their I/O pins corresponding to data from a previous read but not producing current)and...
  18. shekhar_dandya

    Interpreting Datasheets

    Hi All, Actually I was trying to make a small signal voltage amplifier from descrete transistors for audio frequency range.I used a small signal h-arameter equivalent circuit of the transistor.I decided to use a BC107 for it.Then I used the formulae from my electronics textbook to calculate the...
  19. shekhar_dandya

    Newbie question on terminology

    Hi MacLachran, I guess a high impedence state is a device with its one terminal or pin floating or not a part of the electrical circuit.SO there is no potential difference between that pin and any other pin in the circuit,not even 0V.
  20. shekhar_dandya

    Interpreting Datasheets

    Hi Everyone, The electrical characterstics of common components (like diodes,transistors,opamps,regulator chips etc etc...) are mentioned at perticular test conditions of voltages and currents.Our circuit may not have these test conditions. Then how do we decide the value of a perticular...
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