What speed controller?

Lynxmotion Electronics & Software
1

I need several speed controllers for a project I am currently working on. They all need to be able to hooked upto a standard rc receiver (pwm) and control variable both full forward and reverse.

The first one needs to be able to handle 36volt at 4.2a powering a 150w motor.

The second lot (3 units, one to power each motor) I have less requirements than the first one as I havnt got the specifications yet. I do know that the motors will be smaller than the first one with amp/watts, and will be 24 volt.

I have been looking at IFI Robotics, they have models big enough but for the second lot the unit is physically to big to fit. I would also like them to be quiet, thus no fan would definitely be a winner.

2

no-one?

3

These will be very hard to find, what your asking is a pretty damn big load. For the first one at least. However the second one is good. Here is an excellent site for motor controllers.

dimensionengineering.com

look around there its a great site

specifically though, check this motor controller out. dimensionengineering.com/SyRen25.htm

its perfecct for your specifications, rated at 24 volts and 25 amps continuous 45 amps peaked u should be able to do a lot with this, and there is alos a dual channel available if you need it

the first one is a bigger challenge and you are looking at a pretty penny to buy one of those, i’ve seen some pretty beastly ones at
robotmarketplace.com/store.html

they are pretty expensive, but since they sell things for combat robots, they have high amp rated and high voltage speed controllers

4

IFI Robotics has a model big enough to power the 36v motor, only downside is that it has a fan and I would like it to be silent and the physical size is to big.

5

:arrow_right: robotmarketplace.com/marketplace_vantec.html

:arrow_right: lynxmotion.com/Product.aspx? … egoryID=10

fans aren’t noisy, nuff said.

6

Some are, the project I am working on needs to be kept as silent as possible - helps to eliminate all that I can.

The Dimension Engineering SyRen would suit perfect - I am just contacting someone now to find out the specifications for the motors.

7

once that is done, it will be much easier to find an ESC to suit the job.

8

The fan on the IFI Victor’s I use are literally silent. And can be removed and replaced with a heatsink if you are using them at less than half their current rating.

9

The model I would use is the IFI Victor 36HV which is rated for 120a, the power supply will be putting out only 4.2a for the motor which is rated 36v/4.2a/150w. 3.5% of full capacity…

What heatsink do you use? What is the best place to get one? I have seen them from several places and there are heaps of types, are any of them better than any other?

10

I’m using a Victor for 24V and it is virtually silent. With the amp loads you are going to be drawing I would think you would want the fan.