jason9

modified 5 years ago

4.5V to 12V 5A Boost Convertor

539

16:56:45

It takes quite a while to settle down but it settles pretty close to 12V.

published 8 years ago

hurz

8 years ago

Funny

Issacsutt

8 years ago

Nice achievement, maybe not the best out there, but you did it!

Issacsutt

8 years ago

I see the inductor draws like 15 amps though

jason9

8 years ago

You said 13 and a third amps. Include a little losses and it’s 15 amps which just shows that it has 80-90% efficiency.

Issacsutt

8 years ago

Ok, neat. Well done

BillyT

8 years ago

Adjust the inductor a bit, http://everycircuit.com/circuit/5512342015311872

zorgrian

8 years ago

Nice, but there is a parasitic low frequency oscillation, which needs damping somehow

zorgrian

8 years ago

Also please say Jason9 if you are now still a teenager?

Issacsutt

8 years ago

Dude, I'm sure he's tired of talking about it

jason9

8 years ago

I’m still 13 which is still the first year of teenager.

jason9

8 years ago

The low frequency oscillation goes away on it’s own. It’s just so slow that it takes forever to actually disappear.

hurz

8 years ago

Its not a "low frequency oscillation" its called ringing!

zorgrian

8 years ago

@hurz, I am used to the term 'ringing' to refer to the effect at Sharp rise or fall of a pulse. So that the after effect of the sharp rise or fall does produce a tuned ring which is often visible on a scope. We make use of such ringing in class C and D RF amplifiers... No?

zorgrian

8 years ago

I agree that something is causing an unwanted oscillation. However, i can not see that there is a pulse that causes this behavior

hurz

8 years ago

After "fast" rise or fall we can see ringing, cuz "fast" produce more energy even outside the ringing frequency. But energy within is alway there. Even when "slow" rise happened. But its just a matter of spectral energy.

hurz

8 years ago

The most sharp situation of rise/fall time within Ec is just a switch. It does cuz the maximum of spectral energy and probably nice ringing!

zorgrian

8 years ago

Ok so you're saying that just switching this circuit on starts a ringing effect ?

zorgrian

8 years ago

That makes sense

hurz

8 years ago

It is ringing. Nothing else but with dramatic impact to a regulator. Cuz this ringing is not only present while startup. Its always present also when the load does change

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