Grounding heatsinks on CCS X-BOSOZ

Alain Dupont · 24th February 2004, 02:42 PM

Nelson,

Sunday I built a one channel CCS X-BOSOZ on a proto board

to make tests on the CCS, its new to me. And check for a good look!!

Is it a good idea to "ground" all Heatsinks on a CCS X-BOSOZ

The 2 for the IRF 510/610 and the heatsink for the CCS IRF610/BD533

No photos...

My girl friend has received the Powershot A70 for her anniversary,
she realy apreciated.

Regards.

Alain.

PS:
The picture of the sinks, scrap from old power supply...

Mad_K · 24th February 2004, 09:48 PM

You don't need to ground it.

To get best thermal performance from it, you mount the transistors without insulator (just thermal grease). Now the heatsink is at the Drain potential of the mosfet. If you do it this way, make shure the hs is not shorted to anything else.

OTOH, if you (for some reason) decide to use insulators, it can be beneficial to ground it.

Alain Dupont · 24th February 2004, 09:54 PM

Mad_K.

I have used mylar insolators, So I will ground them...
I have finished the one channel CCS X-BOSOZ on half of a 4"1/2 * 6"1/4
Radio Shack board ; leaving place for the second channel.
and I will make a try very soon... Hope it will work fine.

Regards.
Alain.

24th February 2004, 09:48 PM	#2
Mad_K diyAudio Member Join Date: Sep 2002 Location: Norway	You don't need to ground it. To get best thermal performance from it, you mount the transistors without insulator (just thermal grease). Now the heatsink is at the Drain potential of the mosfet. If you do it this way, make shure the hs is not shorted to anything else. OTOH, if you (for some reason) decide to use insulators, it can be beneficial to ground it. __________________ Mads K

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24th February 2004, 09:54 PM	#3
Alain Dupont diyAudio Member Join Date: Sep 2003 Location: Paris - France	Mad_K. I have used mylar insolators, So I will ground them... I have finished the one channel CCS X-BOSOZ on half of a 4"1/2 * 6"1/4 Radio Shack board ; leaving place for the second channel. and I will make a try very soon... Hope it will work fine. Regards. Alain.

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