Amplifier for driving actuator

[j..d]

Hello,

I need your help please. I want to supply dc power to my actuator through PCI DAQ card by using LabVIEW 8.5 . My requirement is simple. I need pulsed input to my actuator. I can make the required VI but the problem is that I need a large current  to drive actuator. I need voltage in the range of 3-5 VDC and current of up to 2A. I am using PCI-6251( Formerly known as PCI-MIO-16E-4).

Thanks

Newbie

[Jochen]

Hi j..d,

the PCI-6251 is an M-Series board and the PCI-MIO-16E4 is an E-Series board, that was renamed to PCI-6040E later, but that's just a sidenote.

Could you please be a bit more specific about the type of your actuator and the level of control that you need to provide?

Do you want to create a PWM power signal and if yes, at what frequency?

Do you get any feedback from your device (position, velocity, torque,...) and do you need to control this in a closed loop mode? 

In general you will need a kind of a drive or amplifier for your application. Answering your questions

Regards,

Jochen Klier

National Instruments

[ben64]

J..D,

There are not a lot of drivers that can operate in the range of 3-5V and deliver 2A. One possible solution is to built your own driver using Ics like STMicroelectronics L297 and L298. The L298 is a H-bridge that can go up to 2A with a threshold voltage of 4.8V. Another solution is to build your H-Bridge using power FETs.

Ben64

[Brian_Beal]

It sounds like you are trying to drive a stepper motor, and are just looking at the motor nameplate data.  Please confirm.  If that is the case, then you will need hardware that it a little more complex.