This complements my "[EE]:: Low gate voltage FET sought" 
post.

While I am easily enough able to design a circuit for the 
following need somebody else may already have a 
better/quicker/cheaper one. So asking seems sensible:

Wanted: FET gate driver circuit that allows operation on a 
supply voltage down to 3 volts with drive signals of say 2V 
nominal but FET gate drive in the 4V - 10 V range. Cost and 
component count to approach zero in large volumes :-). 
Should be reasonably compact. In this case I also have 
available a voltage of either 10V nominal or 20V nominal 
(changes semi-arbitrarily to one of those two values) which 
could be used for gate drive powering. An IC solution is 
unlikely to be satisfactory (size, cost).

Any number of high-side gate drivers would be adaptable to 
this application. eg A capacitor pump generating a ~~ 2X 
supply rail and then a std driver.

Any thoughts?



        R


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