an emergency question

[alimollaghasemi]

i am a MSc student in power electronics.and i want to use usb ni6009 board to control my projects(converters,motor drives and...)but now i have some questions:

1-if i use all analog outputs does it have any impacts on output frequency of each output?(does it reduce the output frequency of each output?)

2-is it possible to control a power converter with labview?

i really need to know the answer of these questions please help me.

yours truly

ali mollaghasemi

[BennyBenson]

Just to be sure that you know, this device only has two analog outputs. You can use both of them, and since it's software timed at just 150 Hz, you shouldn't see any type of reduction in output frequency. As far as the power converter goes, are you talking about something like this?
https://decibel.ni.com/content/message/44138

NI USB-6008/6009

http://www.ni.com/pdf/manuals/371303n.pdf

[johnsold]

1. From the User Guide for the USB-6009:

"Maximum update rate .............................150 Hz, software-timed"

The update rate is likey tied more to the USB latency than to the internal workings of the AO lines but you will not be able to get reliable timing on AO updates faster than a few tens of samples per second.

2. Yes. No. How can we answer such a question? Without knowing the type of power converter and how it communicates with the computer controlling it, that question cannot be answered. 

A resistor is a power converter. It converts electrical power into thermal power. Over a limited range of values you could control that with LabVIEW and the USB-6009, but most likely you have something else in mind.

Lynn

[alimollaghasemi]

hello sir

i want to control a bulk or boost DC-DC converter.

[magpie15]

Check out this tutorial on power electronics as a place to get started

http://www.ni.com/tutorial/14678/en/