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Topic: easiest way of driving amplifying from 5v to 12v (Read 20214 times) previous topic - next topic

dc42

Why not use a proper mosfet driver IC such as TC4420 or TC4429? These will convert a logic signal from 5v to 12V and have good output drive in both directions.
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winner10920

Now that is perfect, exactly what im looking for in terms of size and functionality as well as simplicity
thank you

runaway_pancake

Well, if you're going to go shopping then why not get a logic-level FET?
How much current is the FET supposed to switch, anyway?
At first I thought this was about Arduino and using some IRF-type FETs you had on hand.
Then it turns out it was an about an op-amp (comparator).

[I'm not "annoyed", just asking questions.]
"Who is like unto the beast? who is able to make war with him?"
When all else fails, check your wiring!

winner10920

I am shopping around still, there is a 328p involved but its too busy to do the job of the comparator, I already decided on the mosfets for this project and bought those,(4 for an hbridge and one to turn the whole thing off entirely separate )
its more for incorporating into the design for my much larger project, I just was interested in finding the best wayfor my needs, I have 5v and 12v readily accessible I just didn't know the best(simplest) way to do it, using a dedicated driver that can be controlled from logic makes sense I just didn't think of even looking for something like that, I was first thinking of a non discrete way, but this definetly fits perfect

MarkT

If the signal to be amplified is AC only, then a transformer is a simple way to level shift, but won't give power-amplification.
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arnster

I understand this post is old but for less than $5 digikey has exactly what you need
http://www.digikey.com/product-detail/en/VBT1-S5-S12-SMT-TR/102-1398-1-ND/989924
cheers

barnStormer

Not sure what you meant by "amplify", but if you meant linear amplification, a cheapo LM386 will do.

For digital, get a npn.

isnt amplify and linear amplification the same thing?


MarkT

What do you think would be the easiest, si plest way to turn a 5v signalinto a 12v signal? Im thinking either comparator with a 12 supply, or two npn transistors tho this doessnt seem as fast or energy effewcient
any other ways im not thinking of? It will basically be usedfor powering a mosfet so I need atleast 10-11 of my 12v supply, and its actually more important it turns off faster than it does on, so im thinking I may want to drive it low but idk which is best(btw its about 1000nc gate charge)
Simplest way is using a gate driver chip.  Designed for the purpose, loads of variants available.  Turns on and off with programmable dead time in some instances.
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