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Subject: Re: enquiry on drain amplifier small signal model

Date: 08/16/03 at 11:15 AM
Posted by: too
E-mail: toowang[AT55]yahoo.com (replace [AT55] with @ to reply)
Message Posted:

In Reply to: Re: enquiry on drain amplifier small signal model posted by Russ Kincaid on 08/15/03 at 7:30 PM:

Hello Russ,

Thank you so much in answering my question.
Refer to the example on page
http://www.geocities.com/toowang/drain_amp.gif

I do not understand why in figure 4, gs1vs1 is in a different direction. I read other books and found that all of the body effect current source are in the same direction as gm1vgs1.
What happened if one of the current source is in opposite direction? Will one component of current source will be minus from the total current?
So what should I do?
Kindly help.
Thank you


regards
Too


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