Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Mains voltage data logger

Status
Not open for further replies.
T

treez

Guest
Newbie level 1
Hi,
Can you see any gremlins in our mains voltage data logger circuit?
Its just to take the maximum peak mains voltage occurring every second.

The data logger gets connected to a USB cable then into a PC...(but the PC doesnt have to be connected for the logging to occur..the PC just collects the logs after the analysis period)...and even though this is not "officially" isolated from the mains, i believe that the PC will not be damaged, due to the 1MEG resistor.
this product is not for sale...its just to monitor the mains voltage in our factory.


[my apologies because this post grew out of this thread which re-directed our attentions because of great advice received from FvM...

https://www.edaboard.com/showthread...ce-of-mains-transformer&p=1642916#post1642916
 

Attachments

  • Mains Voltage data logger_1.pdf
    20.2 KB · Views: 109
Last edited by a moderator:

why do not you measure on the secondary side of the transformer when you already have it?
 
  • Like
Reactions: treez

    T

    Points: 2
    Helpful Answer Positive Rating
thanks, its because it is a cheap transformer and we think it will not react in the expected fashion to VAC input changes.
I mean in the first place, we did like you said (as attached), but then we changed our mind, partly because of advice from FvM in the above thread shown in the top post, regarding the lack of prowess of these cheap transformers as measurement devices.
 

Attachments

  • Mains Voltage data logger.pdf
    19.2 KB · Views: 135

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top