Dual 50V 5A H Bridge Speedo Heat Sink

22nd March 2005, 10:59

Hi

I know the Big Nipper have used this to great effecton their robots but I am having a few difficulties on comming up with a design. Having talked to Paul at Technobots he confirmed that they are Plastic fets so they dont need to be insulated. So my Idea was simply to bolt a piece of aluminium, the correct thickness between the two rows of fets and then attach a PC heat sink to the top of that.

Has anyone any other ideas?
Regards
Ian

**bugs** · 22nd March 2005, 11:29

could you solder 1 row of fets to the bottem side of the circuit board? That would give you enough space to place 2 nice heatsinks.

22nd March 2005, 13:38

Mark

If no pictures come forward would you consider taking one?

Regards
Ian

**big_nipper** · 23rd March 2005, 11:50

Got plenty of time this weekend as Ive nothing planned anymore, so will do.

23rd March 2005, 12:15

Thanks Very Much mark, Much appreciated.

Regards
Ian

**big_nipper** · 26th March 2005, 11:16

Ian, look at my profile. Hope this helps

**mark_m** · 26th March 2005, 11:45

Looks good.
Any idea how many amps it can safely handle now? Does the device current limit to a preset level or switch off if it overheats? I cant see either mentioned on its datasheet.
Thanks
Mark