Thread: Losses in PI-filter output
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Old December 2nd 03, 06:42 AM
Wes Stewart
 
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On 1 Dec 2003 17:35:49 -0800, (arie) wrote:

|Maybe not quite appropriate for this news-group..
|
|Does anybody know a pointer to a program or the methods
|of calculations so I can determine the losses occuring
|in a PI-filter output for a high-power tube amplifiers.
|
|I can calculate the required C1, L and C2 values given a
|certain anode voltage and current and a certain output
|impedance for a loaded Q of 10, 12 or other values, but
|what about losses depending on selected loaded-Q values
|related to harmonics suppression...

Assuming decent capacitors, the losses will be almost entirely due to
the Q of the inductor.

eff ~ Qind / (Qind + Qnetwork)

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