However that's not much help if you are trying to make a 99.5% efficient hi-power supply-every loss must be crushed down. you prob won't have 1.5 inch traces running all over.For a few inches of length you typically make them narrower & just Eat the power loss. What if you need to wire a 16 gauge "circuit". Note you can use 2oz pcb copper instead of std 1oz(double thickness) in "extreme" situations.įor example, instead of hooking up your outdoor rotating beer sign with 22ga wire, you could use PCB traces 388 mils wide (0.388 inch). Think of some 12 gauge or 14 gauge or 16 gauge motor hookup wire.now think how wide the wire would be if you flattened the copper wire to paper thickness (like a pcb). Some calculators are mostly concerned with the trace burning up, which is not conducive to low loss or voltage drop. How much current are you talking about? Leave plenty of margin (if you want high efficiency/low power loss). Why are you using an autorouter.already a recipe for a mess. Who told you to use an autorouter? Get experience with your own routes Make the traces (bus bars) extra wide.you have plenty of copper.
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