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 build an AC wattmeter?

Status
Not open for further replies.

roykyn

Full Member level 5
Joined
Sep 15, 2006
Messages
254
Helped
12
Reputation
24
Reaction score
5
Trophy points
1,298
Activity points
2,707
I need ideas to build wattmeter.I have these things in mind.
1>I have seen simple RMS wattmeter using Digital Voltmeter using the age old ICL7106/7 chip.I need proper circuit diagram.
2>The new design using Energy Metering IC with Pulse Output ICs.Sounds good but many companies produce these ICs i am in INDIA bangalore.I would like to know IC numbers available in the market.
3>using ADCs its good concept but i need analog conditioner circuit and other supporting circuits. And i also dont know how to convert AC to measurable DC.
4> ant other methods ...
 

andre_teprom

Super Moderator
Staff member
Joined
Nov 7, 2006
Messages
9,236
Helped
1,151
Reputation
2,321
Reaction score
1,127
Trophy points
1,403
Location
Brazil
Activity points
53,765
ac wattmeter

Try :

AD7500 from Analog Devices.
MCP3909 from Microchip.
TMS320 microcontroler from Texas.


Just using 7107, you could not measure real consumption, due power factor may be diffrent from '1'.


+++
 

Giuss

Member level 1
Joined
Oct 16, 2006
Messages
38
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
1,446
ac watt meter

Some time ago, I've used the chip ADE7755 from Analog Device with very good results
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top