I built diamond buffer before, both for headphone and speaker. The biggest issue was that it sometimes went into oscillation with high load. You can hear clip sound from your speaker when it happens.
I was not sure where was the problem, so I gave up.
I was not sure where was the problem, so I gave up.
kenpeter
the output stage is enough broadband in the class A has a low distortion - at an output voltage of 28 V peak-to-peak of the sound spectrum is not more than 0.02% that the amp with no overall negative feedback is a good thing
best regards
petr
the output stage is enough broadband in the class A has a low distortion - at an output voltage of 28 V peak-to-peak of the sound spectrum is not more than 0.02% that the amp with no overall negative feedback is a good thing
best regards
petr
hpavictor
For the class A is a good solution. To increase the power output and efficiency necessary to use push-pull follower with a corrector Hauksforda but not natraivat its minimum distortion, and a small overcompensation so as to have the output impedance of 0.2 ... 0.3 ohms. To enhance the effect, the driver must be with an output impedance of 10...30 kohms provided that a resistor at the input the output stage.
best regards
Petr
For the class A is a good solution. To increase the power output and efficiency necessary to use push-pull follower with a corrector Hauksforda but not natraivat its minimum distortion, and a small overcompensation so as to have the output impedance of 0.2 ... 0.3 ohms. To enhance the effect, the driver must be with an output impedance of 10...30 kohms provided that a resistor at the input the output stage.
best regards
Petr
I am sorry for my english
For the class A is a good solution. To increase the power output and efficiency necessary to use push-pull follower with a corrector Hawksford (ECH), but it is not adjusted to the minimum distortion, and a small-compensation so as to obtain a negative output impedance minus 0.2 ... 0.3 ohms. To enhance the effect, the driver must be with an output impedance of 10...30 kohms provided that a resistor at the input the output stage.
For the class A is a good solution. To increase the power output and efficiency necessary to use push-pull follower with a corrector Hawksford (ECH), but it is not adjusted to the minimum distortion, and a small-compensation so as to obtain a negative output impedance minus 0.2 ... 0.3 ohms. To enhance the effect, the driver must be with an output impedance of 10...30 kohms provided that a resistor at the input the output stage.
Stee
My friend, a former sound engineer, was also a supporter of complex circuits for a voltage amplifier using current mirrors. When I asked him a simple circuit on a symmetrical folded cascode and that trumped all of his previous scheme, it was pleasantly surprised. All voltage amplifier (VAS) turned on four transistors. Of his best scheme turned my three schemes that overplay his complex schemes. So that the number of transistors still defines nothing.
Best regards
Petr
My friend, a former sound engineer, was also a supporter of complex circuits for a voltage amplifier using current mirrors. When I asked him a simple circuit on a symmetrical folded cascode and that trumped all of his previous scheme, it was pleasantly surprised. All voltage amplifier (VAS) turned on four transistors. Of his best scheme turned my three schemes that overplay his complex schemes. So that the number of transistors still defines nothing.
Best regards
Petr
I also prefer to simplify
In fact, if you look at the complexity of the Krell CAST, you get scared
best regards
Stee
In fact, if you look at the complexity of the Krell CAST, you get scared
best regards
Stee
Stee
In fact, I do not see anything complicated in this circuitry, just all should be some sort of rational sufficiency
And in the output stage of this thread I suggest adding a diode between the input and output - the anode to the entrance. This is to prevent saturation of the upper arm (sholder) by clipping the signal.
Best regards
Petr
In fact, I do not see anything complicated in this circuitry, just all should be some sort of rational sufficiency
And in the output stage of this thread I suggest adding a diode between the input and output - the anode to the entrance. This is to prevent saturation of the upper arm (sholder) by clipping the signal.
Best regards
Petr
Stee
good schemein
turn, you can read my latest publication
RM_2013_07_Superdriver.pdf
if desired translate with Russian
Petr
good schemein
turn, you can read my latest publication
RM_2013_07_Superdriver.pdf
if desired translate with Russian
Petr
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