Need Wiring Help For 12 Volt Motor

Gallery, Projects and General > How do I??

<< < (12/16) > >>

vtsteam:
Snub, check and post the switch ratings for the joystick -- should be located on the switches themselves, or online from the company you bought them from.

The PWM output driving the relay could be an issue -- maybe put a cap across the relay to keep it high enough in voltage and smooth. And add a diode in series to keep it from backfeeding anybody else......

Guys, I'm out of further ideas unless we add relays, or logic components, or different joysticks which, kinda gets away from the easy theme using the available components.

Anyway -- best I could do! Time for me to let better electronic minds have at it! :bow: :beer:

snub:
Info from the switches:

Ui: 600V
Uimp: 6kV
240 V 3A
lth: 10A

My motors actually draw less than 2 amps so I should be good there.

bertie_bassett:
i think those switches should be ok, DC currents are harsher on switches then AC but shouldnt be a huge problem in this situation.

i suspect the switch contacts could have extra's piggy backed on the back of them , perhaps the up and down contacts could be re-positioned?

i dont think your far off with the current diagrams, just a bit of tweaking for that pesky pwm

vtsteam:
I'm addicted to this problem. I think I'm burned out. Then I look at this thread again and.........

Okay shotgun approach to the PWM relay issue:

Add another power supply.

Could be just a little spare DC wall wart with enough juice to kick in the relay.

Here's the same schematic as before with the relay negative lead detached from PWM , and connected to New Power Supply.

The positive side of the supply hooks to the PWM + side.

snub:
vtsteam, I appreciate all your help, but I think you have gone far and beyond what I would expect a total stranger to do to help me out. I am starting to feel guilty. But if you are so inclined, please carry on.

That power supply that I showed in the first picture was dirt cheap. $16.00 delivered from China. It even has a "trimmer"? that will set the voltage from 11.5 to 14.5 volts. Vendor calls it a" voltage output fine adjustment."

Here is a link to it in case anyone needs one. Will work on 110V or 220V.

http://www.ebay.com/itm/390838271618?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Navigation

 Message Index

Go to full version