Subwoofers, Why The Low Impedance

[BigPimpin91]

And Bigpimpin, it is much easier to convert AC to DC. Four diodes and a capacitor will get you a smooth DC feed from a dirty or inconsistent AC feed.

I know about the bridge rectifier but stepping AC DOWN to usable low voltage DC is hard.

[MickyMcD]

I know about the bridge rectifier but stepping AC DOWN to usable low voltage DC is hard.

Toroid or centertap transformer. 240v - 12V>Rectifier>Low voltage DC.

Or

Switchmode Power Supply.

A typical gaming ATX standard SMPS will deliver around 36A on the 12V rails. A MIDAS Heratige 3000 has (usually) two redundant supplies. We benched Murray's H3K PSU at a massive 88A on the 5V rail.

What do you designate as 'usable' low voltage DC? 300amp? Well, try converting that 300A DC to 32A AC 3-phase. Have fun.

Cheers,

Mick

[BigPimpin91]

Toroid or centertap transformer. 240v - 12V>Rectifier>Low voltage DC.

Or

Switchmode Power Supply.

A typical gaming ATX standard SMPS will deliver around 36A on the 12V rails. A MIDAS Heratige 3000 has (usually) two redundant supplies. We benched Murray's H3K PSU at a massive 88A on the 5V rail.

What do you designate as 'usable' low voltage DC? 300amp? Well, try converting that 300A DC to 32A AC 3-phase. Have fun.

Cheers,

Mick

OK,

I know the ATX power supplies are beasts if you get the right ones.

I meant that manufacturers charge out the ass to convert AC to DC.

$100 for a 25amp 13.8v Power supply.

Where as it's only $55 for a DC to AC converter for in car laptops.