Today's device Intro

Electronics & Electrical Engineering Topics
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SemiconductorCat
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Today's device Intro

Post by SemiconductorCat » Sun Jan 06, 2013 10:40 am

Would you have designed a digital voltmeter using a PIC or AVR microcontroller?
I'm pretty sure some of you have. Well you can find open source projects and code
on the internet easily.

But today I'm going to introduce a useful single chip which do the same thing.
It's TC7106 from microchip.
Image

Here is the diagram for a simple voltmeter.
Image

All the facts and images are from the datasheet, so the source is the datasheet.
http://www.datasheetdir.com/TC7106+download

it's principle is based on dual slope principle.
FYI: http://en.wikipedia.org/wiki/Integrating_ADC

basically it will integrate the input voltage to measure, and then it will integrate the -Vref till voltage comes
to zero. In that way measuring the time we could have the value of measuring voltage.
Image

Image

so like wise we could have the input voltage,
Image




Hope you could have some fun with this device as well as your industry needs.
Camron
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Re: Today's device Intro

Post by Camron » Tue Jul 02, 2013 12:17 pm

I think you try the online monitoring facility with your security system that will help you to get alert on your mobile when some one try to enter in your premises without your permission.And also the security monitoring company monitor your security while you are out of home.
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