Reverse Polarity Fuses Circuit Question
Ok fellow scientists :) What is so special about the reverse polarity fuse circuit in a converter compared with just having a fuse on the positive output wire? I yanked the 7355 from the trailer ...
Forum Discussion
road-runner wrote:
What makes the reverse polarity fuses special is there is circuitry in the converter designed to blow the fuses (via a short circuit)if the polarity is hooked up backwards. It can be as simple as a high power diode wired across the converter DC output,
Even simpler that Runner.. Imagine a converter sized to put out max 80 amps (I have one) Fused at 90 (It can take it for a brief period)
Just the regular diodes used to converte AC to DC will blow that fuse, No need for a special reverse diode at all, the main power diodes do the job.. Only added circuitry is the RP Fuse itself.. Works great and that is how I design them. (Yes, I build some of my own power supplies)
