Hi, a while ago I had a friend who created this linear circuit diagram for me but I don't know the components I need to get. It is to control a 4-6v DC motor that powers a jack screw linear actuator. It has adjustable limits that stop the motor when the nut travels to either end. When the switch is pushed/flipped, the nut then travels to the other end and stops. It is controlled by a 2 position switch. Can someone help me as to what components I need to buy? Thanx.

https://www.dropbox.com/s/fls2wv9tcszog74/actuator.jpg?dl=0

maduro

 

Can you just post a jpg or pdf here and not a Dropbox link?

 

Here is the doc. Thanx.

 

You mean like this.
Max.

 

Max,

Yes, I think that is it. So, all I need to get are some diodes and switches? Can you tell me what diodes I need to get for the following voltages....and also, do you know when I can get the very small limiter switches? This is for hobby purposes.

3.7 volts
7.4 volts
12 volts

Thank you.

maduro

 

What current is the actuator motor?
Max.

 

Max,

The motor will draw 1Amp max. Thank you.

maduro

 

Omron have a wide range of L.S. e.g. https://www.digikey.ca/product-detail/en/omron-electronics-inc-emc-div/V-10G2-1C25-K/SW127-ND/31080
Max.

 

1N4002, or any in the series up to 1N4007.

 

THANK YOU Max and Bernard!!!! I really really appreciate the help!

maduro

 

I would suggest going with a bigger diode like the 1N5404 (3Amp) as having extra current rating will not hurt in case something jams and the stall current will be higher than the run current. In applications like this, over kill is good!
https://www.digikey.com/product-detail/en/micro-commercial-co/1N5404-TP/1N5404-TPCT-ND/950582

 

Dendad....thank you for the suggestion. I will definitely take do that.

maduro