Author Topic: LC or RC LPF for Class D Audio Amplifier  (Read 995 times)

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Offline hussamaldeanTopic starter

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LC or RC LPF for Class D Audio Amplifier
« on: July 24, 2018, 05:13:13 pm »
Hi all,
I have a  question, which one to use for class D audio amplifier ?
RC or LC and what the advantage and disadvantage of each one ?
Fc is 40Khz
I googled and come up inclusive
regards
 

Offline T3sl4co1l

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Re: LC or RC LPF for Class D Audio Amplifier
« Reply #1 on: July 24, 2018, 05:15:57 pm »
RC filters are lossy.  Generally, you don't want to burn half your output power as heat; that defeats the purpose of choosing class D. :P

Tim
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Offline hamster_nz

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Re: LC or RC LPF for Class D Audio Amplifier
« Reply #2 on: July 24, 2018, 07:52:44 pm »
On the input (e.g. for a sub crossover), or on the output?
Gaze not into the abyss, lest you become recognized as an abyss domain expert, and they expect you keep gazing into the damn thing.
 

Offline hussamaldeanTopic starter

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Re: LC or RC LPF for Class D Audio Amplifier
« Reply #3 on: July 25, 2018, 03:49:15 am »
On the input (e.g. for a sub crossover), or on the output?

output for the speaker
 


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