topic Voltage and time control in Instrument Control (GPIB, Serial, VISA, IVI)

Voltage and time control

yishui — Mon, 08 Oct 2012 07:35:14 GMT

Hello everyone~

I am using the labview and the NI GPIB-USB-HS card to control the Agilent N8736 DC power supply.

The goal :I want to output the 24V voltage,then drop to 9V ,then rise to 24V ,the fall time and rise time shall be less than 10ms.

The question: how to assure the 10ms time?

I have download the Agilent N8736 GPIB driver from the NI web, and based on the model, I write the follow program listed in attach, and the test result is shown also.

I cannot assure the 10ms time, the actual test time was more than 300ms.

Thanks a lot~~

Re: Voltage and time control

mkossmann — Mon, 08 Oct 2012 14:55:14 GMT

I would say: You can't achieve the <10ms with that powersupply. If you look into the specs (http://cp.literature.agilent.com/litweb/pdf/5990-3881EN.pdf) there are "output response times" and "command response times" much higher than your goal.

Re: Voltage and time control

crossrulz — Mon, 08 Oct 2012 15:02:01 GMT

You may be able to get what you want with an extra power supply, a solid state relay, and a DIO that is hardware timed.

Re: Voltage and time control

yishui — Tue, 09 Oct 2012 00:28:49 GMT

mkossmann:

Thankyou very much. I have read the instructions before, but cannot understand the output response time and command response time clearly. Now I see it, Thanks a lot~~~

Re: Voltage and time control

yishui — Tue, 09 Oct 2012 00:32:19 GMT

crossrulz:

Thanks a lot. I will follow your advices and try other methods to attach my goal.

best to you~~