Circuit Project Electronic www.eleccircuit.com

Circuit Project Electronic www.eleccircuit.com

Let’s build a simple digital meter circuit using ICL7107

Posted: 10 Jan 2013 07:15 AM PST

Lets build a digital meter used today, I would tell like this. Because now building the digital meter is not difficult to use high technology. Or much money at all. With a single IC and a small number, along with the LED lamp size 3 digit 7 segment only half. For building the digital meter contains accuracy higher than the common meter. The heart of this circuit is IC-ICL7107 old, who is now much cheaper. This IC is a 40 pin model as shown in Figure 1 Which indicating the location and function of each pin is ready with important features. In Figure 2 is a basic circuit for simple applications. The value devices can also be used in the circuit of … The determining the maximum range. The input voltage value that can measure a maximum, It will have a value equal to two of the Vref voltage. So [...]

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