Loading...
« previous topic   next topic »
Pages: [1]   Go Down
Author Topic: power supply for arduino  (Read 953 times)
0 Members and 1 Guest are viewing this topic.
nazeem
Offline Offline
Newbie
*
Karma: 0
Posts: 35
View Profile
« on: October 02, 2012, 07:15:16 pm »
 Bigger Bigger Smaller Smaller Reset Reset
Good morning friends
please need help for power supply to freeduino / sanguino as the available input voltage is DC 72 volts wants to stepdown to 5volts DC for freeduino or sanguino board the 72 volts is purely DC,thanks in advance.
Logged

johnwasser
Massachusetts, USA
Offline Offline
Tesla Member
***
Karma: 96
Posts: 6376
View Profile
« Reply #1 on: October 02, 2012, 08:27:07 pm »
 Bigger Bigger Smaller Smaller Reset Reset
I think the device you need is a DC-to-DC converter.  Any with a maximum input voltage of 72V or more, an output voltage of 5V and an output current over, say, 200mA.  DigiKey.com has a bunch to choose from starting at about $12.
Logged

nazeem
Offline Offline
Newbie
*
Karma: 0
Posts: 35
View Profile
« Reply #2 on: October 03, 2012, 12:15:08 am »
 Bigger Bigger Smaller Smaller Reset Reset
Thankyou soooooomuch johnwasser,I will check it out.Can we hack  the conventional mobile charger its input is 220v/110v and output is 5v by tinkering diodes is it correct.
Logged

Osgeld
SE USA
Offline Offline
Faraday Member
**
Karma: 33
Posts: 3624
@ssh0le
View Profile
« Reply #3 on: October 03, 2012, 12:26:48 am »
 Bigger Bigger Smaller Smaller Reset Reset
in a nutshell its more complicated than that
Logged
http://arduino.cc/forum/index.php?action=unread;boards=2,3,4,5,67,6,7,8,9,10,11,66,12,13,15,14,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,86,87,89,1;ALL

johnwasser
Massachusetts, USA
Offline Offline
Tesla Member
***
Karma: 96
Posts: 6376
View Profile
« Reply #4 on: October 03, 2012, 07:53:45 am »
 Bigger Bigger Smaller Smaller Reset Reset
Quote from: nazeem on October 03, 2012, 12:15:08 am
Can we hack  the conventional mobile charger its input is 220v/110v and output is 5v by tinkering diodes is it correct.

If you have a 110V/220V AC switched-mode 5V power supply you may be able to use it.

In a switched-mode AC power supply the 110V/220V AC is first turned into DC at a fairly high voltage.  You may be able to apply your 72VDC to the AC pins and have 5V come out.  If it doesn't work one way, try swapping + and -.
Logged

nazeem
Offline Offline
Newbie
*
Karma: 0
Posts: 35
View Profile
« Reply #5 on: October 04, 2012, 09:21:47 am »
 Bigger Bigger Smaller Smaller Reset Reset
thanks
johnwasser for your kind help,please check the image is this the same adaptor?please let me know can it be tinkered for DC input.
« Last Edit: October 04, 2012, 09:23:26 am by nazeem » Logged

johnwasser
Massachusetts, USA
Offline Offline
Tesla Member
***
Karma: 96
Posts: 6376
View Profile
« Reply #6 on: October 04, 2012, 03:19:17 pm »
 Bigger Bigger Smaller Smaller Reset Reset
Looks like a switch-mode power supply.  Try connecting your 72VDC supply to where the red wires are going. 
Logged

Pages: [1]   Go Up
Print
« previous topic   next topic »
 
Jump to: