Hello,
I am a little bit confused when reading posting regarding the above terms.
Could someone please explain the meanings of (1) bypassing, (2) coupling & (3) decoupling.
I have seen conflicting descriptions of these terms and would appreciate any help.
I am interested in these terms related to power supplies and op-amps.
Thanks in advance.
Cheers
KevinLee🙂
I am a little bit confused when reading posting regarding the above terms.
Could someone please explain the meanings of (1) bypassing, (2) coupling & (3) decoupling.
I have seen conflicting descriptions of these terms and would appreciate any help.
I am interested in these terms related to power supplies and op-amps.
Thanks in advance.
Cheers
KevinLee🙂
all these terms are related to capacitors:
bypassing is putting a smaller, but better quality (such as a MKP film capacitor) in parrallel with eletrolitics to improve the performance of them, this is usally cheaper then buying high quality eletrolytics
coupling and decoupling: capacitors are used to block DC voltage so only the AC voltage passes - this can be used in powersupplies but is almost always used in amplifiers to prevent damage from DC voltage to the speakers
bypassing is putting a smaller, but better quality (such as a MKP film capacitor) in parrallel with eletrolitics to improve the performance of them, this is usally cheaper then buying high quality eletrolytics
coupling and decoupling: capacitors are used to block DC voltage so only the AC voltage passes - this can be used in powersupplies but is almost always used in amplifiers to prevent damage from DC voltage to the speakers
There is a good introduction to bypassing and decoupling titled "Power supply noise reduction" that you can find at http://www.designers-guide.com/Design/.
-August
-August
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