Hi,
Can someone please explain to me how op amps eliminate crossover distortion?
Thanks,
miss fangula
Can someone please explain to me how op amps eliminate crossover distortion?
Thanks,
miss fangula
LM324/358, etc., has a class B output stage, and will create crossover distortion if used with dual supplies and a grounded load.OP amps does not introduce cross over distortion in the first place.
Amplifiers classes other than class A produces cross over from it's output stage.
So a google search and read. U'll know better this way
No.OP amps does not introduce cross over distortion in the first place.
No.Amplifiers classes other than class A produces cross over from it's output stage.
My point was that LM324/LM358 are op amps. They are not power op amps.I know tht power OPAMPS have been introduced with class B out put stage.
I was right tht the output stage introduces distortion
No.LM324/358, etc., has a class B output stage, and will create crossover distortion if used with dual supplies and a grounded load.
Op amps reduce crossover distortion, with feedback, because the high open loop gain forces the output to do what it needs to to keep the voltage difference between the inputs near zero.
LM324/358, etc., has a class B output stage, and will create crossover distortion if used with dual supplies and a grounded load.
Op amps reduce crossover distortion, with feedback, because the high open loop gain forces the output to do what it needs to to keep the voltage difference between the inputs near zero.
My reply about op amps reducing crossover distortion was intended to answer the OP's question:No.
The lousy old LM358 and LM324 have such poor high frequency response that negative feedback cannot reduce the crossover distortion much.
Crossover distortion is at fairly high audio frequencies where their gain and slew rate are low.
My answer is generally true, but not for all op amps across the audio range. The OP said "eliminate". I changed that to "reduce" in my reply.Can someone please explain to me how op amps eliminate crossover distortion?
I don't disagree with you, except that LM324 is an op amp. The output stage is an integral part of it.What are u trying to prove..opamps are not the one introducing distortion.
the output stage does. Proper biasing minimizes crossover. It never is eliminated.
Even at 0.003% there is distortion. It does not eliminate.
U all are saying cross over. So is the opamp introducing crossover or it's output stage.
Power or no power OPAMP. Class A has NO cross over distortion.
Others even at 0.0000000000000001% crossover distortion.
It is distortion. Difference is it's not measurable or audible.
U say NO and u prove ur self wrong.
Ron, It's not u I am referring to...what U said is true and I agree.I don't disagree with you, except that LM324 is an op amp. The output stage is an integral part of it.
AAAH! Now u are getting my point.A few people can hear 0.1% crossover distortion but they cannot hear the 0.003% total distortion from many opamps.
Class-A is a heater, not an amplifier. A class-A amplifier has even-harmonics distortion. A class-AB amplifier cancels most even harmonics distortion.
Most amplifiers are cool class-AB and their tiny amount of distortion cannot be heard.
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