Thanks for the great video! Always enjoy your explanations as an avid student of audio electronics. And also to see the occasional snickers! My cat is called neve 😺
Great video 🙏, thank you for doing such an amazing work. And congratulations your amplifier design is very near to its theoretical efficiency ❤️👍. Waiting for the next video.
This suggests that to increase efficiency at lower power you'd want the ability to adjust your voltage rails to suit the required volume levels. A variable voltage rail would be an interesting feature for an amplifier that has to do multiple duty as both an easy listening amp and a party amp.
@@JohnAudioTech I was thinking more in terms of a manual "eco" switch where you'd adjust the voltage regulation down to match the low power operation rather than multiple rails and automatic switching. While typically you use a variable resistor for adjusting regulation IC's output, you can also just switch to preset resistors for matching the positive and negative rails. If you're already regulating the supply, it's just a couple of resistors and a switch rather than needing a more complex multi rail power design. I'm sure that there'll be other considerations due to gain etc, but they shouldn't be too difficult to compensate for.
Just use Class H amplification, it's a great balance between efficiency, heat, voltage, amperage, and power output.. The RAIL CATCHER! The newer Class H amps. have hardly any crossover distortion..
Sir i hav another question about dco measure at speaker line.. I measure .1mv and max of .24mv at 200mv ramge... setting ...is this normal or abnormal? Thank you sir
Sir i have a question....sir which more better type of transistor to used for my my amplifier zsiklai darington or darlington transistor ? which is more better to used..thank you..god bless
I don't know if I can agree to all this ..... I've used many amplifiers big ones 1Kw to 6Watt and I've always noticed how hot the heat sinks are when driven hard compared with how much cooler they become at half power output ....
As mentioned in the video, music has a lower average power than a sine wave. At high volume, music can put the amplifier in higher dissipation than a sine wave a max level before clipping. It depends on the type of music and the speaker reactance.
If it's pure class a (single ended class A), the dissipation is at max when idle. Which is not the case with class B(AB) that are max at around 60% instead of at idle.
Interesting and well presented explanation, as always. And Snickers commentary, though relevant, seemed to be slightly off point. Might have been my interpretation of feline dialect, so take that with the proverbial grain of salt. Lol. Have a happy, safe, and most of all, meaningful Christmas. My best to you, Snickers, and your whole family.
I'd be interested in partnering to make and sell boards. I can also design the boards. I'm in the process of making a new website, a blog and small store for some of my own boards. Let me know.
I plan to make a video about the board design criteria in a couple months. If you're in the US and are willing to distribute to most locations in the world, I'd appreciate the help.
Back in the day the FTC rating where true and proper today it's china lying shit spec. The only spec is 20-20khz @ say.05% THD, RMS power, NOT 1khz @10% THD peak to peak then x 3.
