VOLTMETER INCREASE RANGE

142

01:04:54

In this circuit, input voltage is up to 100 Volts. Output is 100 milivolts wich is 1000 times impaired. So, when you have for example 100mV voltmeter, using this circuit, you can measure 1000 times higher voltages. Of course, you can change this values.

- I am using operational amplifiers in the slope of the unit amplifier, Because of the voltage divider, the high resistance of the next stage corresponds to the output of this dividers. 

My e-mail: marko.pisarov1996@gmail.com
Instagram: bogdanov_996

HAVE FUN!

published 8 years ago

BogdanovM

8 years ago

Resistors are from E24. :)

edfe

8 years ago

Scr

zanini007

8 years ago

0,5W resistors of 18k and 2k isn't a good idea...

BogdanovM

8 years ago

Thanks for the Proposal. Keep in mind that the input current of the operational amplifiers is negligibly small so that the resistors are negligibly burdened, so we can use any low-power resistor, since we have in mind that the operational amplifiers in this circuit consume very little energy. Each resistor is in this case a good idea, unless the voltmeter spends a lot of electricity at the output, although this is impossible because this circuit serves precisely to measure the high voltages by low voltage voltmeters. :))))))

FernandoCPF

8 years ago

@zanini007 son en kohm puede soportar si fuera en ohm , no podría.

BogdanovM

8 years ago

Pa piši na engleskom ne razumem te nista sa ovim despasito jezikom brttt moj

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