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.

how to measure ac 230v volt in microcontroller

Status
Not open for further replies.

raman00084

Full Member level 6
Joined
Nov 29, 2010
Messages
353
Helped
2
Reputation
4
Reaction score
2
Trophy points
1,298
Activity points
3,950
i want to measure ac line voltage through pic micro controller adc pin, what circuit can i use to measure ac in micro controllers is there any ic available. if i convert to dc it is not leaner
kindly help thank you
 

paulfjujo

Advanced Member level 4
Joined
Jun 9, 2008
Messages
1,453
Helped
295
Reputation
590
Reaction score
278
Trophy points
1,363
Location
France 01800
Activity points
10,263
hello,

you can use a transfo 230V/9V or 6V to have galvanique insulation.. more safe !
i did some test for direct sinusoidal measurement, without rectifier
and measure peak to peak value..
you can see the results HERE
 

embpic

Advanced Member level 3
Joined
May 29, 2013
Messages
742
Helped
80
Reputation
160
Reaction score
77
Trophy points
1,308
Location
india
Activity points
5,213
it could be done with using voltage divider which is not that much safe
 

eriksen

Junior Member level 1
Joined
May 13, 2014
Messages
19
Helped
1
Reputation
2
Reaction score
1
Trophy points
3
Activity points
171
As stated by paulfjujo you should use a transformer.
You can then use a simple bridge rectifier and then a voltage divider.
This will provide you with a safe voltage source to measure on.

See the post by P_Wood on the arduino forum for reference:


-Fredrik
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top