Are there any special design considerations for using a simple Darlington emitter follower to drive a resistive load at 300 1AV?
The signal is a 30Hz (not KHz) sinewave at audio line level.
Given the low frequency, what would be a bombproof transistor to use for the 300V rail?
Regards,
Martin
"Martin Donald" schreef in bericht news: snipped-for-privacy@4ax.com...
What 1AV ? How much is that resistive load?
What sense does it make to drive a darlington with a sinewave at audio line level? How much is that anyway? 500mV ?
-- Thanks, Frank. (remove \'q\' and \'.invalid\' when replying by email)
At those V-I levels, it is worth creating a collector circuit I_V load line upon which you superimpose Pmax and SOA limit curves derived from the transistor datasheet.
What's an AV ? Do you mean a VA ?
What's the load resistance/impedance and the signal amplitude ?
Graham
"Martin Donald"
** The question as posted is nonsensical.Try explaining your need in simple language.
It is obvious that technical terminology is beyond you.
......... Phil
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