Have a project where they are stating they have 690VAC/50/3
I believe the location is Madagascar but what I've found is they use 380VAC or 230VAC.
690 seems like an odd voltage for 3 phase motors, and even worse finding a control transformer that can give me 115VAC for the PLC.
Has anyone run...
I have a project where I've been asked to control a electric damper actuator, specifically
http://www.valvesolutions.com/pdf/gca%202p.pdf
using a 0-10VDC signal for positioning. I've been looking for some sort of document that discusses the 0-10V control but haven't been successful yet...
I have a fan, that is on site..cant be replaced now the equipment is installed, that runs on 220VAC. Nobody thought to ask about it...and now its in Japan. So need a 100V to 220V converter. I was thinking a standard 110VAC to 220VAC box would work, its off the shelf etc but they...
After some googlin' and finding only devices that are rated, I am trying to find out WHO gives the energy star ratings..ie is this similar to a NRTL rating or more of a CE..self certified and if so, what are the standards that you need to fall into? This is for a consumer electronics device.
This is just going out for opinions. The cheap and dirty way is the simple 2/3 voltage divider, and it works...sorta. For slow rise time signals, I don't see much of a problem but for faster signals, I'm see the results of the capacitance on the cable, etc that gives me the slow fall and rise...
I'm looking for a source that can build custom formed IR filters. I have a 38-40KHz transmitter, and a 2.3MHz receiver on the same board, with a physical shield between the LED's and so I need to get a filter made that fits over my board assembly.
Note: did some forum searches to find the right one, didnt seem to be anything specific.
Looking for opinions. Lets not argue about costs, why do it, etc. Companies get patents for the IP, and so that even if they don't sue someone else over the violation, it keeps them from being sued by...
Not sure if this is the right forum, so let me know if there is a better one. For low voltage systems, typically 48VDC and under, the UL certification is much different than 120VAC of course. But the question I have, I was told in a conversation the other day that its easier to have a system...
