Hi, I would like to learn more about Class D (PWM/PDM) amps, mainly for driving headphone loads (about say less than 5W into 32 ohms in the worst case scenario). I understand only the basics of how it works. I would like to know about the difficulties and implementation of good quality Audio Class D amps (like Hypex, Icepower etc), and posting here seeking for guides. I have fairly decent idea about BJT/MOS devices, especially linear amplification, and a little bit about feedback and regulated power supplies if that helps.
I also came across a category called Fully digital Amplifiers, and I would like to learn about it as well. I think I can code my sbc to do the necessary PWM/oversampling part so I could even skip the ic that does this conversion, and only focus on the Digital to analog conversion part.
Thanks.
I also came across a category called Fully digital Amplifiers, and I would like to learn about it as well. I think I can code my sbc to do the necessary PWM/oversampling part so I could even skip the ic that does this conversion, and only focus on the Digital to analog conversion part.
Thanks.
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The Internet is the best source.
If you want really to understand the problems, join a research department in one of the reputed class D (or similar) companies and give it 5-10 years there. There are no real short-cuts. Interest, endurance and stubbornness is what counts - and the mistakes you have already made and learned from.
Very few will tell you openly about the delicate problems that remain. Even less will tell you the solution. It is a "competitive" world and their particular understanding is what gives them a chance against low cost production.
If you want really to understand the problems, join a research department in one of the reputed class D (or similar) companies and give it 5-10 years there. There are no real short-cuts. Interest, endurance and stubbornness is what counts - and the mistakes you have already made and learned from.
Very few will tell you openly about the delicate problems that remain. Even less will tell you the solution. It is a "competitive" world and their particular understanding is what gives them a chance against low cost production.