Sonsivri
 
*
Welcome, Guest. Please login or register.
Did you miss your activation email?
December 04, 2016, 11:15:45 23:15


Login with username, password and session length


Pages: [1]
Print
Author Topic: Single supply absolute value  (Read 915 times)
0 Members and 1 Guest are viewing this topic.
free
Active Member
***
Offline Offline

Posts: 115

Thank You
-Given: 66
-Receive: 13


« on: August 12, 2009, 01:09:20 01:09 »

hi friends,

I built single supply absolute value with CA3140 from datasheet, but it's not work.
www.intersil.com/data/fn/fn957.pdf
I need it to rectify 0-2v sinewave ac input.
Do you have the working circuit in single supply?
Logged

Some dream to escape reality, some to change it forever.
- Soichiro Honda -
PilotPTK
V.I.P
Junior Member
*****
Offline Offline

Posts: 40

Thank You
-Given: 5
-Receive: 23


« Reply #1 on: August 12, 2009, 07:48:25 07:48 »

Hello,

We need more information.  In the simplest of terms, a bridge rectifier is an 'absolute value' generator of sorts.  tell us about your application - what are you trying to achieve?  You have a 0-2v sine AC signal.. You need the absolute value of it.  Does 'Ground' Need to be referenced to one of the legs of the AC?  Do you need to amplify the signal at all?

PPtk
Logged
free
Active Member
***
Offline Offline

Posts: 115

Thank You
-Given: 66
-Receive: 13


« Reply #2 on: August 12, 2009, 03:32:31 15:32 »

hi PilotPTK,

I want to measure 50Hz ac voltage with AVR's ADC.
I need single supply to make it simple in design with less components, I use 12v battery as voltage source.

Does 'Ground' Need to be referenced to one of the legs of the AC?
Yes.

« Last Edit: August 14, 2009, 01:00:30 01:00 by free » Logged

Some dream to escape reality, some to change it forever.
- Soichiro Honda -
beque
Active Member
***
Offline Offline

Posts: 129

Thank You
-Given: 45
-Receive: 149



« Reply #3 on: August 13, 2009, 06:17:14 18:17 »

Here you are...
Logged
Pages: [1]
Print
Jump to:  


DISCLAIMER
WE DONT HOST ANY ILLEGAL FILES ON THE SERVER
USE CONTACT US TO REPORT ILLEGAL FILES
ADMINISTRATORS CANNOT BE HELD RESPONSIBLE FOR USERS POSTS AND LINKS

... Copyright 2003-2999 Sonsivri.to ...
Powered by SMF 1.1.18 | SMF © 2006-2009, Simple Machines LLC | HarzeM Dilber MC