Increased symmetry in amplifier

Danyele82 · 7th December 2004, 11:29 AM

In come amplifier on the output stage are used little cap (N-channel MOS) (a few picoFarad) between gate and drain-source to incresed the simmetry with a complementary pair (P-channel MOS).
What do you think about this? It's useful or not servants to nothing?
If it's useful i can use this little cap also in a input (IRFD110-IRFD9110) and output (IRFP240-IRFP9240) stage of Phass A75? Or in the input the differece of InputCapacitance (20pF) is too low?

peranders · 7th December 2004, 11:47 AM

Your question is very good. I wonder also how much this will do. I have a feeling of that it does nothing. The capacitance is also very unlinear and dependent of the speaker load.

darkfenriz · 7th December 2004, 08:29 PM

look to thread 'how to slow dowm the mosfet' or something like this

7th December 2004, 11:29 AM	#1
Danyele82 diyAudio Member Join Date: Mar 2004 Location: Como	Increased symmetry in amplifier In come amplifier on the output stage are used little cap (N-channel MOS) (a few picoFarad) between gate and drain-source to incresed the simmetry with a complementary pair (P-channel MOS). What do you think about this? It's useful or not servants to nothing? If it's useful i can use this little cap also in a input (IRFD110-IRFD9110) and output (IRFP240-IRFP9240) stage of Phass A75? Or in the input the differece of InputCapacitance (20pF) is too low?

7th December 2004, 11:47 AM	#2
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	Your question is very good. I wonder also how much this will do. I have a feeling of that it does nothing. The capacitance is also very unlinear and dependent of the speaker load. __________________ /Per-Anders (my first name) or P-A as my friends call me

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7th December 2004, 08:29 PM	#3
darkfenriz diyAudio Member Join Date: Jun 2004 Location: Warsaw	look to thread 'how to slow dowm the mosfet' or something like this

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