offering this anti spark switch designed gamer43 who has kindly donated design, switch offered at cost no profit involved.
going to do a batch of 10, if enough interest will run a batch of 20 if anybody wants one, purly at cost value no profit involved, as i need two myself nice small pcb.
After lots of research found lots of bad and quite good designs of antispark switches i believe this is probably one of the best ones out there that works uses the Ltc 7004 icinrush-limiter [here] switching the high side which looks after the mosphets, it draws no current when switched off so battery wont drain, included will be a quality switch.
please put your name down if interested. will get prices in the next couple of days but should be in the region of about £15.00, excluding postage.
fuse wont be included, to keep cost of board down, board will be insulated with a double layer of heatshrink will look like this, with switch below will be good for 100 amps, suggest you use whatever fuse you require.
There is no design here. We’d need a schematic – or at a minimum a high-res photo of the PCB on both sides without heatshrink on it – to know what this circuit is doing.
With a pair of IPB014N06N, or 10x NTMFS5C628NL, it’ll handle upto 6,000uF at 50V without an issue.
I would know because I do this everytime I switch my mountainboard on.
If the MOSFETs still popcorns then increase the size of the capacitor from 100nF to 220 or 330nF.
Alternatively, you can ship it all to one person and then that person can take care of shipping for the states. It’s more work but it’ll be cheaper for the end users depending on how many people purchase.
