LM358 low voltage single supply op amp non inverting comparator circuit with LED load

[@Electronzap]

www.patreon.com/electronzap www.amazon.com/shop/electronzapdotcom As an Amazon Associate I earn from qualifying purchases. kzbin.info www.reddit.com/r/ElectronicsStudy/ instagram.com/electronzap/ LM358 low voltage single supply op amp non inverting comparator circuit with LED load www.twitch.tv/electronzap I now do my gaming, Fallout 4 for now, on Twitch.

[@glennkrieger]

I have watched a number of your videos on op amps. Not knowing a thing (for real) about op amps at first, I would now consider myself a regular user of op amps for a myriad of my projects. Thank you for making this series!

[@Electronzap]

Glad to hear, thanks for watching!

[@JohnClulow]

Thanks for providing this video. I'm just starting to work with op amps and picked up some LM358's to experiment with. Your tutorial will be a good starting point for me.

[@kwissiekwissie]

Quick and Simple video! great! thanks!!

[@Electronzap]

Thanks for watching!

[@milindkhurd]

Well explained, thanks.

[@Electronzap]

Glad to hear, thanks for watching!

[@Enoch-Gnosis]

Is the LM358 the same as LM358N? Thanks !

[@Electronzap]

A letter after the part number usually means it is a slightly improved version of the one without a letter. Need to study a datasheet to figure out why. Unfortunate I'm not noticing any comparisons on the datasheet at this time.

[@Enoch-Gnosis]

Awesome thank you!

[@cocobrother]

Thank you for the tutorial on the IC 358. I now have a board that runs the astable, monostable, bistable, and LM 358 inverter op-amp all on an in-board 5v power supply. I'm configuring a new 4 circuit board and want to run a 12v fan from an in-board 5v power supply on the first circuit. Therefore my question is, can I use a MOSFET to bump up the voltage to 12v to make the fan run off a 5v power supply. Thanks, will check your affiliate page for a MOSFET kit.

[@Electronzap]

To step up voltage, you really want a premade boost converter (probably $1-$5 for a cheap, low power one). A fan is probably relatively high current, and if it needs 1A of current at 12V then the 5V supply might have to provide 3A of current (A boost converts current into voltage, some extra current is needed for losses though). A boost converter that can do that might be at least $12. It's better to work with the voltage that the more power hungry part of the circuit needs, and to boost or buck (step down) the voltage for less power hungry circuitry. A voltage regulator is like a resistor that adjusts resistance as needed to provide a reliable lower voltage to low power circuitry. They are low price and reliable, but get hot and thus produce less current to avoid damage, unless you have the proper heat sink, luckily they have really good internal protection from overheating. A 7805 voltage regulator outputs 5V from a higher voltage. Can likely power an op amp/comparator directly with one without having to add a heat sink, so it will just stop working until it cools instead of burning out.. I was thinking of doing a video on those soon. There are USB 5V to 12V barrel plug boost converters, but they might not even be able to output one amp at 12V unless you buy a really expensive one and have a really good USB to plug it into. It's easily doable though, just have to keep in mind the power (voltage times current) that everything needs to handle. Higher current always equals a lot higher price and rarer components.

[@cocobrother]

Thank you, your explanation sounds like chapter 16 of my step-by-step electronics guide which I have not reached yet. Nothing like thinking ahead haha. It dawned on me that the 12v fan came out of an old computer. So I think I will stay in the parameters that you suggest and purchase an inexpensive 5v fan.

[@Electronzap]

Good times!

[@rahulpatelgujratahmedabad3497]

Good tiching karte hai 👌👍👌👌👌

[@rahulpatelgujratahmedabad3497]

Good tiching karte 👍👌👍👌👍👌

[@aurthorthing7403]

I ordered 50 of these because I knew I would fry a few :)

[@Electronzap]

Nice!

[@zentrans]

I fried some glue holding a flyback core by using this amp to amplify the 555 signal to drive a MOSFET gate. It was a low frequency signal. I wasn't expecting the windings would heat up so fast. There was no spark. Maybe I reversed the polarity on the primary, messing things up, but I still have to check that.

[@zentrans]

@@Electronzap I might have found a faster way to do what this guy has done here watch?v=_wcggMPNY20&t=2m22s , though he might be avoiding the fumes by doing it this way.

[@jayapriya1238]

Sir give one example sum for this circuit

[@zachpawlik7671]

Anyone tell you that you sound exactly like Norm Macdonald?

[@Electronzap]

Yup :)

[@SagorSagorkhan-w9j]

You are a good explainer but why people don’t find you???? Isn’t there no one to learn the concept deeply

[@Electronzap]

Thanks for watching, hopefully they will soon :)

[@willtipton]

man i really like your videos but the audio really sucks. plz get a better microphone or fix in post... anyway great vids and content... just fix the audio. it sounds like you have a bad cold in every video. nasally if you know what i mean.

[@Electronzap]

That's my voice lol.

[@willtipton]

@@Electronzap lol my bad... :)