i'm looking to build a 36v bicycle trailer system using a pair of 96dB efficient 8" two ways as mains, and 4 x 12" subs i've calculated to have the highest output at 20Hz. i plan on using 3 smaller 12v 7a batteries and WANTED to add a capacitor as a buffer, but the cheapest high capacity caps i could find (eg. 1 farad +) are car audio caps, but none of those are rated for 36v even though the system i'm planning is just 7 amps. any ideas on how i could buffer the power supply with caps? run 3 car caps in parallel in the circuit to "re-divide 36v back into 12v" in essence? i would have thought a 1 farad capacitor should be more than enough for such a low amperage system.
what would you say, too, is the maximum wattage i should be using with this system? i originally planned on using a 2x100wpc amp for my mains and a 1x200w amp for the subs, but now am thinking of using a 1x400w amp rated 15-44v with an optimum 9.8a power supply.
i'm not well versed in circuit design at all, and at least as far as the amps go, would just say "fine... 2x100 + 1x400 shouldn't be a problem as it's close to each amp's ratings & class D is twice as efficient as A/B". my ignorance proved to be an issue when i started trying to build a 12v system a few years back, so i'd appreciate some feedback from people who understand electronic circuits better than i do.
would i "side tap" each amp to charge them individually at 12v? i would think that once the circuit is broken by a switch, any batteries connected to either terminal make no difference when another circuit is created at each battery's terminals.
one other thing, if i'm running a 36v series system, can't i side tap one of the batteries for a separate low power 12v circuit like driving an electronic EQ/crossover or LED lighting system?
any help clarifying what i'm doing right or wrong with this design is appreciated.
what would you say, too, is the maximum wattage i should be using with this system? i originally planned on using a 2x100wpc amp for my mains and a 1x200w amp for the subs, but now am thinking of using a 1x400w amp rated 15-44v with an optimum 9.8a power supply.
i'm not well versed in circuit design at all, and at least as far as the amps go, would just say "fine... 2x100 + 1x400 shouldn't be a problem as it's close to each amp's ratings & class D is twice as efficient as A/B". my ignorance proved to be an issue when i started trying to build a 12v system a few years back, so i'd appreciate some feedback from people who understand electronic circuits better than i do.
would i "side tap" each amp to charge them individually at 12v? i would think that once the circuit is broken by a switch, any batteries connected to either terminal make no difference when another circuit is created at each battery's terminals.
one other thing, if i'm running a 36v series system, can't i side tap one of the batteries for a separate low power 12v circuit like driving an electronic EQ/crossover or LED lighting system?
any help clarifying what i'm doing right or wrong with this design is appreciated.
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