Yes, that's why I reduced it from 2Vpp to 1.2Vpp, and to my surprise it started to oscillate...
With C7=16pF, and input Vpp = 1.2
there is a 'kink' in the rising wave..
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Using all its features and vast actual component libraries, MC12 is probably the top simulator out the - what is more it is free since the company closed. I have use MC since 1994 and each revision improved until MC12.
>Using all its features and vast actual component libraries, MC12 is probably the top simulator out the - what is more it is free since the company closed. I have use MC since 1994 and each revision improved until MC12.
I just checked it out - it's free now. I thought Maxim was using Multisim....
Will try MC..
But still - majority of people here on this forum is using Spice, so in order to co-operate, spice comes as more reasonable choice.
Not always the best product becomes 'standard'..
I just checked it out - it's free now. I thought Maxim was using Multisim....
Will try MC..
But still - majority of people here on this forum is using Spice, so in order to co-operate, spice comes as more reasonable choice.
Not always the best product becomes 'standard'..
Unfortunately they only have models for AVX capacitors, would be nice if they had others as well.
I am sorry I ment Maxim, not M inek
I am sorry I ment Maxim, not M inek
The best square I can get for 1.2 Vpp
is with C10=330p, C6=16p, C7=22p
But - slew rate suffers, and it goes back to 15V/us like in original LMK/Wiederhold amp.
is with C10=330p, C6=16p, C7=22p
But - slew rate suffers, and it goes back to 15V/us like in original LMK/Wiederhold amp.
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Maxim, I installed MC12. Can you share your MC12 sim file?
Is there a way to import Spice asc file to MC12 ?
Is there a way to import Spice asc file to MC12 ?
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If I add output LR network, oscillations on the rising square corner are increasing.
If I add output LR network AND C to the speaker (10nF), oscillations on the rising square corner are getting even worse.
In LTSpice.
If I add output LR network AND C to the speaker (10nF), oscillations on the rising square corner are getting even worse.
In LTSpice.
Didn't change MC12 files yet.
Still working with my original spice file with laterals.
I'm slow... Learning MC12 will take some time...
Still working with my original spice file with laterals.
I'm slow... Learning MC12 will take some time...
Amplifiers with such a large gain are not indifferent to the capacitive component of the load. We must be careful .
And so, carefully understanding the correction of this amplifier, it is easier to understand it, the principle of its operation..
Try using AD711 in the LTS.Unpretentious oramp
And so, carefully understanding the correction of this amplifier, it is easier to understand it, the principle of its operation..
Try using AD711 in the LTS.Unpretentious oramp
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I tried AD711. Exactly same results for square waves.
Same shapes, oscillations, etc...
Slightly slower rise time.
On paper AD711 looks very close to LT1056...
Same shapes, oscillations, etc...
Slightly slower rise time.
On paper AD711 looks very close to LT1056...
That's the best result so far (in ltspice). Works well with speaker capacitance and LR output network.
Rise time is slow-ish (like standard LMK/Wiederhold).
In real build do we need input RC network, like for instance in the Wiederhold amp I built?
Rise time is slow-ish (like standard LMK/Wiederhold).
In real build do we need input RC network, like for instance in the Wiederhold amp I built?
Most likely, the models of laterals are inaccurate .A high-pass filter is required.
Is the quiescent current normal ?
Is the quiescent current normal ?
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