Non Isolated Chip Question

[Adam M.]

Is there any problem leaving a heatsink floatint at -V on a non-isolated chip if the heatsink does not touch anything, nor is in danger of touching anything or arcing to another part? Thanks.

[weissi]

Hi!

I never use insulation pads, no problem with it... But: I mostly use wooden enclosures... If you choose a metal case you should really insulate it right, but I guess you know!

[ronc]

I never use isolation pads either bu i use hammond enclosures (metal). What i do is to isolate the H/S (a .7-1.5 lb gold plated brass bar) on a poly C pad.And i use another poly C bar as a pressure bar to keep the load of the chip even.
ron

[Adam M.]

Ron, that sounds like a pretty cool solution, do you have any pictures of a setup?

[ronc]

Link below.

http://community.webtv.net/roncla/Isolation


ron