Society of Robots - Robot Forum
|
Robot Tutorials
|
FAQ
|
Welcome,
Guest
. Please
login
or
register
.
Did you miss your
activation email
?
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
News:
Squirrels have fuzzy tails.
Home
Help
Search
Login
Register
Society of Robots - Robot Forum
»
Electronics
»
Electronics
»
use power adapter for Axon II?
Print
Author
Topic: use power adapter for Axon II? (Read 2323 times)
0 Members and 1 Guest are viewing this topic.
happy_hippo
Jr. Member
Posts: 45
Helpful? 0
use power adapter for Axon II?
«
on:
June 25, 2011, 06:59:45 AM »
Hello
can I use something like this:
http://cgi.ebay.co.uk/AC-DC-POWER-ADAPTOR-1500MA-1-5A-3V-4-5V-6V-7-5V-9V-12V-/190527293445
instead of batteries to power a hexapod on AXON ii with 18 servos?
on the website they say each servo take ~150mA without load.
(they are HS-55)
Thanks
«
Last Edit: June 25, 2011, 08:10:53 AM by Admin
»
Logged
->
Admin
Administrator
Supreme Robot
Posts: 11,704
Helpful? 173
Re: use power adapter for Axon II?
«
Reply #1 on:
June 25, 2011, 08:12:45 AM »
With load, a servo will use from 0.5A to 1.5A, and it really depends on what kind of servo you use.
This power supply can only supply 1.5A, meaning you can only power about two servos with it.
Logged
subscribe to SoR's YouTube account
happy_hippo
Jr. Member
Posts: 45
Helpful? 0
Re: use power adapter for Axon II?
«
Reply #2 on:
June 25, 2011, 01:33:56 PM »
I looked everywhere , and I can't really find any portable/cheap power supply rated at 6V and like 10A of current. My servos are micro (HS-55 1.6kg cm torque at 6 v), and without load they are supposed to consume 0.15A of power.
There's an adaptor that I've been looking at:
http://www.roboteshop.com/robot-catalogue/innovati/robot-manufacturers/innovati/6.6v/8a-adaptor.html?keyword=type
it has 6.6V and 8A , which is quite good (and is designed for hexapoddino. I'm building something along those lines). Is there something similar, but more common and that I can buy in the UK?
Logged
->
Admin
Administrator
Supreme Robot
Posts: 11,704
Helpful? 173
Re: use power adapter for Axon II?
«
Reply #3 on:
June 25, 2011, 01:57:00 PM »
Servos will die faster if you go above 6V.
No load current draw is power the servo draws without even doing anything. 150mA is a huge waste of power lol.
With load is what matters, and that could be much higher. You need to measure the current draw with a multi-meter to get a better estimate.
For a project I'm working on, I use two 3.3V supplies in series to get 6.6V:
http://www.trcelectronics.com/Cosel/power-supply-pba.shtml
Logged
subscribe to SoR's YouTube account
Print
Society of Robots - Robot Forum
»
Electronics
»
Electronics
»
use power adapter for Axon II?
SMF spam
blocked by CleanTalk