Linear Current Booster

[hpinson]

Can anyone explain how a Linear Current Booster works?   I am trying to determine if I have a bad unit (in a direct PV install for a water pump), and don't really understand what it does.

[MountainDon]

Does this help?

http://www.solarseller.com/solar_converters__inc__linear_current_boosters___faq_.htm

[hpinson]

Maybe... I'm working with a 12V DC motor that is not quite doing the work it is supposed to do.   Direct PV from a 210w 12v 11amp panel or 12v/~11amp from the eu2000i gennie is not quite turning a pump motor rotor with a considerable, but in spec, load on it.  Note quite turning... almost turning... does 90% of the rotor stroke but won't do the top 10%.  I can manually assist the last 10%.

So as I read this, a LCB produces more torque, by controlling the motor at a lower speed, which is, I think, what I need?

Fuses are not blowing on the motor circuit so I don't think I am at its maximum capacity.

[MountainDon]

If you read what I posted you know as much as I do, but have more field experience with a recalcitrant pump.