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18v stepdowns.... Why?


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Posted

Why do we use diode based stepdowns? They are super inefficient - they just get hot.

Why not use a PWM based system instead? It's much more effecient

Posted

That only works if you have multiple alts. If not then you need a step down..

But I have no idea.. sd. Prolly cost more to use pwm then a.simple diode..

Setup:


2010 Hyundai Elantra


Factory Unit via 4 chan NVX LOC


Excessive Amperage "H/O" Alt


Xs D3400/ Xs XP3000


Big 3. 2 Runs of +, 2 Runs of -


DD M3b and 2 12" AQ HDC4s

Posted

Why do we use diode based stepdowns? They are super inefficient - they just get hot.

Why not use a PWM based system instead? It's much more effecient

You get all the noise and fun of a PWM circuit. You would need to build a pretty beefy DC-DC supply to take the current demands of even an idling automobile and almost no accessories.

I'm gonna hate

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