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Recent content by bharatsmile2007

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    Load current variation modeling for BUCK converter...

    Hi All, i am modeling a buck converter,in state space averaging method.... How to model load current variation in buck converter? Pls find the following circuit.... Thanks
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    the transfer function ....

    hi all.. can anyone tell me how to find the transfer function of the image below.. i have the tf,but i would like to know the procedure to find it?
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    Average Modeling BUCK PWM voltage Mode Control..

    Hi all... can any one tell me how to do "Average Modeling BUCK PWM voltage Mode Control.." I mean i need to do state space average modeling for complete BUck converter which includes PWM also... Thanks a lot...
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    zeroes in folded cascode opamp

    Re: folded cascode opamp Hi doibongvui, I am updated the attachment so that you can see clearly. As you said, using the bias circuit directly make complex to me. Thats why i am using plug in voltages. Thanks for your reply.
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    Bias voltage variation with respect to process variation

    Hi, I am designing a folded cascode opamp with pmos diff pair. In this i have a four bias pins. My supply voltages are 3.3(typ), 3.6(ff), 3.0(ss) My question is 1. what is the bias voltage variation with respect to process variation(typ, ff, ss)? 2. write now i have bias voltages for typical...
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    state space average modeling....for LC filter...

    hi... can any one tell me.. "why don't we consider initial conditions for performing state space average modeling for any DC-DC converter?" Thanks...
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    zeroes in folded cascode opamp

    folded cascode opamp Hi everyone, I am designing a folded cascode op-amp with PMOS input diff pair. I am able to put all transistors in saturation in typical corner, where as in fast corner few are not in saturation. look at the below attached image In fast corner the transistor m6 & m7 are in...
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    LC filter simualtion in HSPICE

    Thanks keith1200rs... i got simulation done when i connected the load and the syntax is correct it takes spaces and commas also... thanks once again....
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    LC filter simualtion in HSPICE

    Thanks for the reply... I have TF for the circuit attached here...is 1/(1+s²LC) L=12mH C=11nF i wanted to see the gain of it by ac sim....Cant i do the sim without connecting a load?
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    LC filter simualtion in HSPICE

    hi,, i want to simualte LC filter in HPSICE: below is the sp file for LC filter: ***LC Filter Transfer function*** .option post=2 * INPUT PARAMETERS: Vu1 in 0 3.3 ac 1 * TRANSFER FUNCTION Glowpass out 0 laplace in 0 1/1,0,0.136n * ANALYSIS .AC DEC 10 1 1000K * VIEW RESULTS .PLOT V(*) .PROBE...
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    state space average modeling....for LC filter...

    Hi all, would any one provide some document on state space average modeling of LC filter? would be of great help..if any one can upload some documents on state space average modeling ? Thanks
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    different types of opamp which has the gain 77db

    Re: different types of opamp Thank you very much to show the data sheet. it helped me.
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    folded cascode op-amp design

    Hi everyone, i am designing the Band gap reference in which it requres op-amp(i am using folded cascode op-amp). My VBG voltage is 1.25V. My question is 1. How to decide/choose pmos tail current in opamp. Folded cascode op-amp is given below. 2. And also how to size the folded current...
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    Thermal shutdown...Buck converter...

    thanksyou.... dick_freebird
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    different types of opamp which has the gain 77db

    different types of opamp Hi everyone, can any one help me about the type of opamp which has the gain 77db. and also list out the different architecures of opamps?. Thanks bharat
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