Simple hall effect current transformer..?
Hi,
I wonder if there exist simple current transformer solutions using hall effect devices instead of bulky wound coils. I need to measure current between 0 and 100amps flowing in 1-phase or 3-phase mains cables. The units should contain an A/D converter with output to a standard bus, like for example 1-wire etc.. Has anyone here heard about simple yet relatively accurate (+/- 3%) current sense devices / solutions with digital output..? Thanks for comments and info regards Geir |
Simple hall effect current transformer..?
Geir Holmavatn wrote:
Hi, I wonder if there exist simple current transformer solutions using hall effect devices instead of bulky wound coils. I need to measure current between 0 and 100amps flowing in 1-phase or 3-phase mains cables. The units should contain an A/D converter with output to a standard bus, like for example 1-wire etc.. Has anyone here heard about simple yet relatively accurate (+/- 3%) current sense devices / solutions with digital output..? Thanks for comments and info regards Geir http://www.apcs.net.au/products/niche/hct016.html something like that? -- "I'm never wrong, once i thought i was, but was mistaken" Real Programmers Do things like this. http://webpages.charter.net/jamie_5 |
Simple hall effect current transformer..?
In article ,
Geir Holmavatn wrote: Hi, I wonder if there exist simple current transformer solutions using hall effect devices instead of bulky wound coils. I need to measure current between 0 and 100amps flowing in 1-phase or 3-phase mains cables. The units should contain an A/D converter with output to a standard bus, like for example 1-wire etc.. Has anyone here heard about simple yet relatively accurate (+/- 3%) current sense devices / solutions with digital output..? Thanks for comments and info Sounds like what you want is a clamp test meter. They work to that sort of accuracy. They're priced from only a few dollars - but one with a data output bus will be more. -- *Preserve wildlife - Go pickle a squirrel* Dave Plowman London SW To e-mail, change noise into sound. |
Simple hall effect current transformer..?
In article ,
Geir Holmavatn wrote: Hi, I wonder if there exist simple current transformer solutions using hall effect devices instead of bulky wound coils. Check out F. W. Bell; they used to make Hall-based units good for up to a few hundred amps. Isaac |
Simple hall effect current transformer..?
On Nov 10, 8:05 pm, isw wrote:
Check out F. W. Bell; Indeed some neat products. The OP request for a digital output may not be so immediately available but the following link points to an "easy to embed" solution for in-system use. The 0-5V output can easily be converted to a digital value by feeding the voltage into the A/D converter of your favorite microcontroller. ciscodsl |
Simple hall effect current transformer..?
On Nov 11, 7:58 am, wrote:
On Nov 10, 8:05 pm, isw wrote: Check out F. W. Bell; Indeed some neat products. The OP request for a digital output may not be so immediately available but the following link points to an "easy to embed" solution for in-system use. The 0-5V output can easily be converted to a digital value by feeding the voltage into the A/D converter of your favorite microcontroller. ciscodsl http://www.sypris.com/stm/content.asp?page_id=371 |
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