Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic 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

Signal conditioning AC 80Vrms

Status
Not open for further replies.

tjalps

Full Member level 5
Joined
May 28, 2001
Messages
240
Helped
6
Reputation
12
Reaction score
3
Trophy points
1,298
Location
SLOVENIA
Activity points
1,994
circuity iso124

Hello!

Does anyone have any good solution for signal conditioning upper signal to standard NI equipment levels ( - 10V >< + 10 V ) and other. Any solution is welcome.

Best regards!
 

marie65

Super Member
Joined
Jan 15, 2002
Messages
198
Helped
19
Reputation
38
Reaction score
8
Trophy points
1,298
Activity points
1,506
iso124 schematic

One solution is to use an isolation amplifier. I usually use the low cost ISO124P from Burr Brown (now TI). In front of the ISO124, you can built a voltage divider that will reduce the voltage at the required level for NI board. The ground loop is interrupted by the ISO so you don't have to worry about voltage differences between the NI board and the signal source.
 

sdhawan

Newbie level 6
Joined
Nov 29, 2004
Messages
13
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,283
Activity points
131
Can you please give me the schematics of this
 

IanP

Advanced Member level 5
Joined
Oct 5, 2004
Messages
7,942
Helped
2,309
Reputation
4,620
Reaction score
531
Trophy points
1,393
Location
West Coast
Activity points
66,459
If it is AC voltage (low frequency) you can use low-power transformer and step this voltage down to NI levels: it is cheap and safe.
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top