auto range MULTIMETER - Electronic Circuits Projects Diagrams Free

repciu · 2nd August 2006, 06:34 PM

how to make easy auto range in digital voltmeter, circuit is working on ICL 7107 project is in web: http://www.electronics-lab.com/proje...014/index.html

philba · 2nd August 2006, 06:53 PM

have you actually looked at the datasheet? it gives you a nice little hint as to where to look. (i.e., it points to an application note titled: “Building a Battery-Operated Auto Ranging DVM with the ICL7106”.) the 7106 and 7107 are very similar parts.

In general, your first stop on a journey like this should be at the datasheet for the part.

repciu · 2nd August 2006, 08:17 PM

it's too hard for me understand working this auto range circuit and make good to use this auto range circuit by ICL 7107

philba · 2nd August 2006, 09:14 PM

sorry to hear that.

phalanx · 2nd August 2006, 10:10 PM

Quote:

Originally Posted by repciu

it's too hard for me understand working this auto range circuit and make good to use this auto range circuit by ICL 7107

I'm curious about how you expect to make an autoranging DMM when you don't have the fundamental skills to understand the directions on how to do so.

repciu · 3rd August 2006, 04:05 PM

cant just find schematic autoranging circuit working with ICL 7107, sry for my english im from europe, i dnt know english perfect :P

repciu · 3rd August 2006, 04:07 PM

maybe anybody know how to make autoranging circuit which can working with ICL 7107 and write it here

Papabravo · 3rd August 2006, 04:11 PM

I suggest that you divide and conquer. Let's take a paragraph from the datasheet. You read the paragraph and tell us if you understand it or not. If you do then go on to the next paragraph. If you don't, reproduce the paragraph or give us a link and we'll help explain what is going on. I suspect there are other participants who will also be interested in this.

repciu · 3rd August 2006, 04:13 PM

range in my schematic is controled by one resistor (R3). I just need easy circuit which can switch right resistor in right time:
0 - 2 V ............ R3 = 0 ohm 1%
0 - 20 V ........... R3 = 1.2 Kohm 1%
0 - 200 V .......... R3 = 12 Kohm 1%
0 - 2000 V ......... R3 = 120 Kohm 1%

repciu · 3rd August 2006, 04:17 PM

my problem is that i dnt know good english and undestand technical englisch is little hard for me :P

audioguru · 3rd August 2006, 04:23 PM

Is there an electronics forum in your language?

repciu · 3rd August 2006, 04:25 PM

yes there is but nobody want to speak with me :P

repciu · 3rd August 2006, 04:31 PM

and what is battery operated DMV what doeas mean DMV

phalanx · 3rd August 2006, 04:40 PM

DVM = Digital Volt Meter
DMM = Digital Multi-Meter

philba · 3rd August 2006, 05:48 PM

it's gonna be a looonnnggg summer.

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2nd August 2006, 06:34 PM	(permalink)
repciu	auto range MULTIMETER how to make easy auto range in digital voltmeter, circuit is working on ICL 7107 project is in web: http://www.electronics-lab.com/proje...014/index.html

2nd August 2006, 06:53 PM	(permalink)
philba	have you actually looked at the datasheet? it gives you a nice little hint as to where to look. (i.e., it points to an application note titled: “Building a Battery-Operated Auto Ranging DVM with the ICL7106”.) the 7106 and 7107 are very similar parts. In general, your first stop on a journey like this should be at the datasheet for the part.

2nd August 2006, 08:17 PM	(permalink)
repciu	it's too hard for me understand working this auto range circuit and make good to use this auto range circuit by ICL 7107

2nd August 2006, 09:14 PM	(permalink)
philba	sorry to hear that.

3rd August 2006, 04:05 PM	(permalink)
repciu	cant just find schematic autoranging circuit working with ICL 7107, sry for my english im from europe, i dnt know english perfect :P

3rd August 2006, 04:07 PM	(permalink)
repciu	maybe anybody know how to make autoranging circuit which can working with ICL 7107 and write it here

3rd August 2006, 04:11 PM	(permalink)
Papabravo	I suggest that you divide and conquer. Let's take a paragraph from the datasheet. You read the paragraph and tell us if you understand it or not. If you do then go on to the next paragraph. If you don't, reproduce the paragraph or give us a link and we'll help explain what is going on. I suspect there are other participants who will also be interested in this.

3rd August 2006, 04:13 PM	(permalink)
repciu	range in my schematic is controled by one resistor (R3). I just need easy circuit which can switch right resistor in right time: 0 - 2 V ............ R3 = 0 ohm 1% 0 - 20 V ........... R3 = 1.2 Kohm 1% 0 - 200 V .......... R3 = 12 Kohm 1% 0 - 2000 V ......... R3 = 120 Kohm 1%

3rd August 2006, 04:17 PM	(permalink)
repciu	my problem is that i dnt know good english and undestand technical englisch is little hard for me :P

3rd August 2006, 04:23 PM	(permalink)
audioguru	Is there an electronics forum in your language? __________________ Uncle $crooge

3rd August 2006, 04:25 PM	(permalink)
repciu	yes there is but nobody want to speak with me :P

3rd August 2006, 04:31 PM	(permalink)
repciu	and what is battery operated DMV what doeas mean DMV

3rd August 2006, 04:40 PM	(permalink)
phalanx	DVM = Digital Volt Meter DMM = Digital Multi-Meter

3rd August 2006, 05:48 PM	(permalink)
philba	it's gonna be a looonnnggg summer.