I want to find a variable current limiting circuit (off the shelf) to
be used for a 12vdc Linear Actuator so that I can adjust the overload
of it. The box needs to sit between the Actuator and the power source
and allow double poll double throw action (reverse polarity to change
direction of the Actuator, and the black box have a variable resistor
so that the overload can be changed depending on the overload
required.

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Request for Question Clarification by byrd-ga on 10 Feb 2006 15:05 PST

Hi robbielee-ga,

There are many variations of linear actuators. What is the
manufacturer name and model number of the actuator you are using? And
do you have a link to a wiring diagram?

Thanks,
Byrd-ga

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Clarification of Question by robbielee-ga on 11 Feb 2006 12:01 PST

The Actuators are from Firgelli Automations which is my company, I
want to be able to offer my customer the option of buying a box that
allows you to plug the avtuator into (each actuator has 2 wires) and
plug a power source into the box also to power the actuators then the
current limiting can be used as a force overload which some peopl want
when they are opening and closing doors and flaps etc. So it needs to
be 2 wires in and 2 wires aout but still allow revers polarity for the
actuators to retract, although the current limiting may only need to
work in 1 direction.