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Type: Posts; User: timer

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  1. Closed: Re: MIT Professor puts his life on the line to show his fait

    those mit students are lucky to have such a prof.
  2. Closed: Re: need a circuit

    hi,

    check out the following sites:

    http://www.electronicsforu.com/efylinux/circuit/august2001/cir1.htm

    http://www.siliconchip.com.au/cms/A_105034/article.html

    hope that helps.
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    Closed: low power low speed oscillator

    hi,
    which oscillator architecture would be best suited for the least power, low freq. (500hz) and very low duty cycle(<1%). could you give me any pointers in literature.
    thanks
    timer
  4. Replies
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    Closed: Re: Which book is better to start with?

    you can download the solns for grey meyer from
    https://www.edaboard.com/viewtopic.php?t=79843&highlight=gray+grey+meyer
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    Closed: Re: Who is your idole in Analog Design?

    J.C.Bose

    This is what Tom.Lee says in his planar microwave book:

    "Bose used this detector in experiments extending to approximately 60Ghz, about which he first published in 1897. His research...
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    Closed: Re: Constant Gm biasing

    in const gm biasing, you bias the mos and ensure that the gm of the mos is independent of process param and temperature. unlike a constant i source, here bias current will vary with temp and process...
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    Closed: Re: spice sim. of a variable cap

    hi rfsystem,
    could you explain how i could use ahdl with spice.(any freeware ahdl)
    i use ltspice for my spice simulations.
    thanks
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    Closed: spice sim. of a variable cap

    hi everybody,
    how could i simulate a variable capacitance whose value could be varied in a specified manner (in spice). i want to run a transient simuation where the capacitance of a cap. would have...
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    Closed: Re: Analog Design : Some things to remember

    what is the reason for this? how does inversion help?
  10. Closed: Re: About current mirror

    hi rjshmadala,
    i dont find any BODY REGULATED LOW POWER CURRENT MIRROR CIRCUIT in razavi.
    only the ordinary current mirror is explained.

    hi dheeraj,
    could you post that IEEE paper in the...
  11. Closed: Re: stacking voltage regulator to get more amperage

    the only drawback would be that the regulator is a linear regulator. hence if you draw too much current and drop too much voltage across the regulator, you would be dissipating lot of heat. you can...
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    Closed: Re: How does ping-pong amplifier cancel offset?

    i'll upload the paper for you by sunday.
    bye
  13. Closed: circuit of 2-4 decoder

    It is possible to build a full adder using 2:4 Decoder with an extra Enable input.

    You will need 2 2:4 decoders, a NOT gate and 2 4-input OR gates :

    This can be done by giving inputs a,b to...
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    Closed: Re: power line communications

    hi,
    i thought high frequencies were not allowed to be hooked up onto power lines(to reduce emi). is it true??
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    Closed: Re: How does ping-pong amplifier cancel offset?

    hi pipeline,
    could you post the paper or the link to the ping-pong paper
    thanks,
    bye
  16. Closed: Re: what is the type of feedback in this circuit? help!!!

    hi carlson,
    could you put up the whole ckt. with the bandgap
    thanks
    bye
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    Closed: Re: Some BSIM4 paprameters ?

    check out the bsim4 manual in the bsim4 berkeley page.
  18. Closed: Re: how to find the Rin of the self-bias cascode current-mir

    hi wanily,
    sorry, i have made a mistake in my post. Replace "Now let us consider that node 1 was grounded" by "Now let us consider that node 2 was grounded". I dont know how you could possibly use...
  19. Closed: Re: How to realise F = ~A*B + ~B*C using 4-input multiplexer

    dear student2005, i'm afraid that the config you've used for the 4:1 mux would not yield the desired function.
    according to your design, when B=0 (and thus S1S0=00), IO is selected to give the...
  20. Closed: Re: how to find the Rin of the self-bias cascode current-mir

    Hi wanily1983,

    Thanks for putting up the ckt.
    Now let us consider that node 1 was grounded. looking in from 1, we would only see a resistor. If we increase node 1 by V volts, I into node 1 would...
  21. Closed: the multi-tanh principle gilbert

    razavi has given a very nice explanation of the gilbert cell in section 4.5.
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    Closed: transit frequency

    razavi meant that the drain and source are at signal ground. (something like connecting huge caps from drain to ground). It is assumed that the transistor has been DC biased.

    thats why he says...
  23. Closed: Re: how to find the Rin of the self-bias cascode current-mir

    Hi,
    I dont have allens book but i'll try to explain the -ve feedback conceept. if we assume that the o/p voltage of the cascode (drain of CG(common gate) MOS) is raised, then due to finite o/p...
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    Closed: Re: A question about the book writed by Razavi

    Hi,
    Razavi uses ID for both large and small signal currents. this is a little confusing sometimes. the gm in the equation clearly implies that the curret he is referring to is the small signal...
  25. Closed: Re: keyboard

    of course yes... many bluetooth enabled devices are available in the market now.. check this website :
    http://www.apple.com/keyboard/
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