Sudo the Banned
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Asked
— Edited
My humanoid has a 11v battery, and i'm afraid that it might fry the 7.4/6v micro servos. Will this fry the servos?
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DROK adjustable buck regulators
http://www.pololu.com/category/131/step-down-voltage-regulators
There are both standard regulators and buck/switching regulator styles available.
or something like this one:
http://www.pololu.com/product/2120
You probably need an adjustable unit. Have a voltmeter handy these don't have the nice display.
Size is mostly determined by the amount of current you need to provide.
http://www.centuryheli.com/products/productdetail.htm?prtnm=CN2133&pageid=810
Would they just snap into the servo port like i wanted?
http://www.troybuiltmodels.com/items/QRSRV.html
http://www.amainhobbies.com/product_info.php/cPath/1574_199/products_id/193539/n/Western-Robotics-Tail-Servo-Step-Down-Voltage-Regulator-w-LED-Indicator
The issues are expense and your input voltage. One for each servo can turn into a huge amount of money. All of the inline voltage regulators will only step 6v or 7.4v down to 5 to 5.2 volts that I have run across.
So, would those be able to step down a 12v current to a 6/7v current? thanks!
Input Voltage: DC 4.0~40V
Output Voltage: 1.25V~37V
Output Current: 2A(normal and stable), 3A Max.
Here's the link again:
Dork
It that unit is too big then the Pololu converters are great units. Cant go wrong with Pololu. However you'll have to learn how to solder to attach the header pin. You'll also need to get the proper Molex connectors or jumpers to attach to the header pins. Some people like to solder the power wires directly to the board to avoid using connectors but I think that's a bad idea. How are you going to disconnect if you need to change something.
A word of advice and I don't mean to seem condescending. If your planning on building robots you really need to learn how to solder and use a multi meter. The robots you will be able to buy through the store here at EZ Robots will be mostly plug and play. However if you plan on building your own from scratch or other platform you may need some more advanced skills. Learning simple soldering and a basic understanding of electricity and electronics will open many doors for you and take you on some real cool journeys in robotics. Youtube has thousands of vids on most anything you will need to know about these two topics. At the Instructables website there are millions of tutorials also.
Here's that link:
Instructables
And it so rewarding and fun! Isn't that what it's all about anyway?
By the way Current is Amps. Voltage just pushes the current through the circuit.
Good luck,
Dave Schulpius
EDIT: one more thing. Make sure you don't attach anything that will draw more then 3 amps max to this unit. If you do you will burn it out. You may need more then one if your servos (all added together) draw more then this can provide. Think of it like sucking all the air out of a plastic bottle. If you do this and make a vacuum the bottle will crunch.
As far as the extra wire: that's the signal wire that go directly from the outside pin of one digital port of the EZB to the servo signal wire. You run the power wires (+ and -) from your power source (the EZB it's self or and external power supply like a battery) through this unit and to the servo.