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Re: CCS heatsinks [message #30511 is a reply to message #30508] Sun, 13 February 2005 14:15 Go to previous messageGo to next message
Damir is currently offline  Damir
Messages: 1005
Registered: May 2009
Illuminati (2nd Degree)
Easy, "top" mosfet (connected to the B+) drops about all the voltage from B+ to the Ua (anode voltage). It`s about 100V difference, and with 15 mA - P=1,5W, even small heatsink is "good enough" - IMO.
Interesting, in BC55B/MJE350 CCS, the transistor close to the anode load, or "lower" one (MJE350) needs cooling - opposite then DN2540 cascode CCS.

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Re: CCS heatsinks [message #30514 is a reply to message #30510] Sun, 13 February 2005 15:47 Go to previous messageGo to next message
Manualblock is currently offline  Manualblock
Messages: 4973
Registered: May 2009
Illuminati (13th Degree)
Tommorrows Valentines day. I better get my Trans.

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Re: CCS built [message #30515 is a reply to message #30509] Sun, 13 February 2005 15:48 Go to previous message
Manualblock is currently offline  Manualblock
Messages: 4973
Registered: May 2009
Illuminati (13th Degree)
What are you doing way over there? We need you here.

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