10kV switching

[shoneill]

I'm just wondering if there's anyone with experience in controlling / switching a low-current high voltage supply with minimal "spikes".

I have an application which needs up to 10,000V, but with low current (It's for capillary electrophoresis).  Of course the voltage stability and reproducibility is important and anything better than the current manual switching of a high voltage supply would be good.

Are there such supplies with RS-232 or USB-control?  Do I need to use the analog out of a DAQ board with a crazy gain?

Anyone with some ideas?

Shane.

[Brian_Beal]

What do you mean by switching?  Is it a fast on/off with somewhat high of a frequency?  I have used Glassman high voltage power supplies before with analog input controls.  I believe some models have comms.

[shoneill]

That looks great!

Thanks Brian.  With "Switching" I meant the very minimum of turning on and off, but regulation is better, which some of those units provide.

Great help.

5*

Shane.