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You're generally quite precise, so...hope to see connection dots in future schematics...!
Finally I understood that parasitic capacitance! And also i understood finally why HF transistors have ultra low capacitance at base - collector! My BFR93A has something like 0.5 pF !!! So it is like 16 times less than 2n2222 !!!
Can you introduce the super regenerative receiver?
19:20 Is this error? Emitter resistance is (re||1k+5)xBeta and not (re+5)xBeta. Am i right? Anyway great video.
You're right but here re is nearly the same numerically as re||1k since re is small, so I just neglected the ||1k.
In the case of the common emitter amplifier, rpi should be in series with (Beta+1)x(RE//RE1)
what happens with the miller capacitance when the gain is positive?. Isn't it a problem then? Does the miller capacitance behaves as an inductor?
Nothing happens to it, but more importantly, it isn't amplified like it is with an inverting amplifier.
The frequency response is NOT "a little bit better", it is HUGELY better!...get your facts straight man :) :) :)
You're generally quite precise, so...hope to see connection dots in future schematics...!
Finally I understood that parasitic capacitance! And also i understood finally why HF transistors have ultra low capacitance at base - collector! My BFR93A has something like 0.5 pF !!! So it is like 16 times less than 2n2222 !!!
Can you introduce the super regenerative receiver?
19:20 Is this error? Emitter resistance is (re||1k+5)xBeta and not (re+5)xBeta. Am i right? Anyway great video.
You're right but here re is nearly the same numerically as re||1k since re is small, so I just neglected the ||1k.
In the case of the common emitter amplifier, rpi should be in series with (Beta+1)x(RE//RE1)
what happens with the miller capacitance when the gain is positive?. Isn't it a problem then? Does the miller capacitance behaves as an inductor?
Nothing happens to it, but more importantly, it isn't amplified like it is with an inverting amplifier.
The frequency response is NOT "a little bit better", it is HUGELY better!
...get your facts straight man :) :) :)