Need to interface Arduino with a 9volt , 1 amp DC power supply

Other Hardware Robotics
1

I have a project that requires careful control over for a DC electromagnet. I have a ‘power Module’ that has a 3-5v , 600Mamps . This power module will nicely operate a little DC motor but I need a power supply that is a bit bigger.

I want to study the physical constant of mass and the vehicle is angular momentum. I have built a rotating flywheel that will be propelled by an electromagnet and controlled by a hall effect detector. But this 'power module' is not strong enough to drive the whole thing.

I am looking for a solid state relay board for 9V and maybe 1 amp. I have an old computer power supply. I just need the relay.

I think I have done my homework. I found a relay that will drive four big AC 110V devices. (SainSmart 5V 4-Channel Solid State Relay Board for Arduino Uno Duemilanove MEGA2560). this would be great for garage door openers, pool pumps, Christmas tree lights, but not what i want. Help.

2

I have a project that requires careful control over for a DC electromagnet.

You don't need a relay for this. A logic level MOSFET would be fine, wired as shown below:

dc motor driver.jpg
dc motor driver.jpg804×660 40.4 KB

dc motor driver.jpg
dc motor driver.jpg804×660 40.4 KB

3

Quick thanks; This is a new learning curve for me, but I am okay with that. ( I am disappointed that 'Arduino forums' did not notify me of your posting. Are my settings not correct)

4

Hi,
Welcome to the forum.

Your settings are correct, the notification provision is hopeless,
You are better regularly checking the forum.

Tom... :slight_smile:

5

I have a 'power Module' that has a 3-5v , 600Mamps .

600 million amps? Stand back!