Aleph P1.7 heat sink?

sugano · 11th July 2006, 02:31 PM

Aside from the obvious PSU mosfet, do other mosfet get hot enough to require heat sinking?

Thank you

jh6you · 11th July 2006, 02:56 PM

The rail voltage is around +60V. The total bias current flow is average 50mA through all six MOSFETs. I.e. total 60*0.05=3W dissipation from the six, approximately.

A question climbs up the question: If each mosfet has no heatsink, could I touch it with my finger more than 10 sec . . . ?

11th July 2006, 02:31 PM	#1
sugano diyAudio Member Join Date: Mar 2003 Location: Hong Kong	Aleph P1.7 heat sink? Aside from the obvious PSU mosfet, do other mosfet get hot enough to require heat sinking? Thank you

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11th July 2006, 02:56 PM	#2
jh6you Account Disabled Join Date: Aug 2002 Location: Near to the Pacific Ocean	The rail voltage is around +60V. The total bias current flow is average 50mA through all six MOSFETs. I.e. total 60*0.05=3W dissipation from the six, approximately. A question climbs up the question: If each mosfet has no heatsink, could I touch it with my finger more than 10 sec . . . ?