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https://designers-guide.org/forum/YaBB.pl Design >> Analog Design >> mosfet as current source https://designers-guide.org/forum/YaBB.pl?num=1374668750 Message started by aman gupta on Jul 24th, 2013, 5:25am |
Title: mosfet as current source Post by aman gupta on Jul 24th, 2013, 5:25am I was reading razavi's book where it was mentioned that " current source injects current into ground or draw current from VDD and only 1 terminal of current source is floating" My question is if 1 terminal is floating how can the current flow as there has to be a loop ??? |
Title: Re: mosfet as current source Post by aaron_do on Jul 24th, 2013, 5:37am I guess he means that the current is independent of the voltage, so the voltage can take on any value... Aaron |
Title: Re: mosfet as current source Post by AnilReddy on Jul 25th, 2013, 5:47am Hi, The loop will be closed by other circuits where this Source/Sink of current is used. Bye, Anil |
Title: Re: mosfet as current source Post by aman gupta on Jul 26th, 2013, 7:00am what is meant by floating terminal ?? |
Title: Re: mosfet as current source Post by boe on Jul 26th, 2013, 8:49am aman gupta wrote on Jul 26th, 2013, 7:00am:
In this context it is a terminal which does not have a fixed voltage (e.g. ground, power supply, etc). - B O E |
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