Voltage gain of 2 using LM358 single supply op amp electronics circuit by electronzap

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Voltage gain of 2 using LM358 single supply op amp electronics circuit by electronzap

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@Electronzap 4 жыл бұрын

kzfaq.info make sure to subscribe and click the bell! www.patreon.com/electronzap - electronzap.com/ - www.amazon.com/shop/electronzapdotcom is where I post affiliate link ads of products that I use in my videos or would like to buy. As an Amazon Associate, I earn from qualifying purchases.

@Dodo-ym8cc 3 жыл бұрын

I learn more from your short tutorials than from a textbook.

@Electronzap 3 жыл бұрын

Text books are generally confusing until you see demonstrations. Then they make a lot more sense.

@JohnClulow Жыл бұрын

Thanks! Great explanation. Just what I needed to see.

@Electronzap Жыл бұрын

Glad to hear, thanks for watching!

@HazeAnderson 4 жыл бұрын

Typo in the video title (LM350). Oh man I was excited for a NEW op amp! 😅

@Electronzap 4 жыл бұрын

Ha! Thanks for the heads up!

@arhamupadhye5157 2 жыл бұрын

Can I amplify 75 millivolts to 5 volts using LM358 module that has a gain of 100X. I'm trying to make an invasive ammeter. I want the ammeter to show 400amps when a voltage of 75 millivolts is developed across the shunt. But it is difficult for arduino to measure in millivolts.

@Electronzap 2 жыл бұрын

Should be able to, but I haven't built one yet. So I can't give a good answer.. That'd be a good circuit to Google. I'm sure a schematic that works well is out there somewhere.

@arhamupadhye5157 Жыл бұрын

Hey there! I've made a lm358 dc voltage amplifier with a gain of 100x. My maximum input is 75 millivolts which gets amplified to 7.5 volts. But I want to scale the voltage range of 0 - 7.5v to 0 - 5v so I thought of connecting a voltage divider across the output of the amplifier. But when I connect it, the output suddenly drops randomly. How can I isolate the amplifier and the voltage divider circuit???

@TheFandiahmad 3 жыл бұрын

Am need 5v to 100v can we add 1k and 20k resistor with 5v input voltage ?

@Electronzap 3 жыл бұрын

Op amps don't boost voltage. They generally don't even output the full supply voltage. You can output a multiple voltage of a signal as long as that output voltage is less than the supply voltage by enough for that particular op amp.

@paulmacgiollacaoine8619 4 жыл бұрын

So the Op Amp when there is negative feedback will always try to equalise it's two inputs by adjusting it's output? I hope I'm starting to understand :)

@Electronzap 4 жыл бұрын

Exactly! With negative feedback, the op amp output tries to keep the voltage at the inverting input (-) the same as the voltage at the non inverting input (+) .

@Dodo-ym8cc 3 жыл бұрын

Does the voltage gain ever come above the supply voltage? Like for example 2x trimpot set at 6V = 12V gain which is more than the supply voltage of 10V?

@Electronzap 3 жыл бұрын

Op amp might stop providing more voltage when it gets to the supply voltage, and often can't even provide the supply voltage. It never exceeds the supply voltage, it just levels off wherever it levels off.