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Electronics => Projects, Designs, and Technical Stuff => Topic started by: Finndersen on February 23, 2015, 01:41:27 am

Title: What power supply to use for project?
Post by: Finndersen on February 23, 2015, 01:41:27 am

Hello,
I'm planning a project which will include the following components:

• Circle of LEDs - there are 6 in series at about 3v each so requires 18v to turn them all on.. could possibly re-wire it to have two sets of 3 in parallel at 9v? - apparently 150mAhttp://www.ebay.com.au/itm/50-60LM-3W-10LEDs-5730-SMD-White-32mm-Circle-Aluminum-Base-PCB-Plate-4pcs-/301427050916?pt=LH_DefaultDomain_15&hash=item462e73c9a4 (http://www.ebay.com.au/itm/50-60LM-3W-10LEDs-5730-SMD-White-32mm-Circle-Aluminum-Base-PCB-Plate-4pcs-/301427050916?pt=LH_DefaultDomain_15&hash=item462e73c9a4)
• Three more single LEDs at around 3v each
• 12V DC motor which will draw about 350mA max
• Mini brushless motor driven by 6A ESC, ESC is designed to be powered by 2S Li-po battery which is 7.2V? Not sure what acceptable voltage input range of ESC is. http://www.ebay.com.au/itm/Brushless-Outrunner-Motor-4000-3500-KV-6A-ESC-High-Quality-New-/151415070145?pt=AU_Toys_Hobbies_Educational_Toys&var=&hash=item23410a9dc1 (http://www.ebay.com.au/itm/Brushless-Outrunner-Motor-4000-3500-KV-6A-ESC-High-Quality-New-/151415070145?pt=AU_Toys_Hobbies_Educational_Toys&var=&hash=item23410a9dc1)
  http://www.ebay.com.au/itm/Emax-6A-Speed-Controller-ESC-SimonK-Firmware-Multirotor-6amp-/301341054118?pt=LH_DefaultDomain_0&hash=item46295394a6 (http://www.ebay.com.au/itm/Emax-6A-Speed-Controller-ESC-SimonK-Firmware-Multirotor-6amp-/301341054118?pt=LH_DefaultDomain_0&hash=item46295394a6)
• Arduino - could be powered off 5V output from above ESC

So I've got some high voltage requirements (12V motor and LED circle) and high current requirements (brushless motor). I will probably never need to run the brushless motor close to max speed so maybe only 2A or so required for that? Otherwise if absolutely necessary I could try find another motor solution.

I was looking at power supplies along the lines of something like this.http://www.ebay.com.au/itm/DC12V-24V-60W-400W-Universal-LED-Light-Strip-Regulated-Switching-Power-Supply-AU-/171357393625?pt=LH_DefaultDomain_15&var=&hash=item27e5b252d9 (http://www.ebay.com.au/itm/DC12V-24V-60W-400W-Universal-LED-Light-Strip-Regulated-Switching-Power-Supply-AU-/171357393625?pt=LH_DefaultDomain_15&var=&hash=item27e5b252d9)
Would this be appropriate in combination with some regulators? I'd prefer something smaller and lighter though..


Thanks for any help!