patents.justia.com
It might be, I recall seeing a fuzzy schematic showing his feed back loop, I’ll give it a read thanks for the link.Is it this one?
US Patent for Amplifier circuit Patent (Patent # 11,405,007 issued August 2, 2022) - Justia Patents Search
An amplifier, such as a Class D amplifier, having one or more feedback loops comprising a path from the input to the primary amplifier input, where the paths comprise a low pass filter and a compensator which is disabled when the primary amplifier clips.
Interesting view. What about the many great pioneers of audio who have made major strides in giving us better equipment and used blind tests to further the SOTA? I will say you did a fine job of using flowery words that would make any subjectivist proud. Words like Deafenville, scientologists, Walmart shoppers etc. Remember it has ALWAYS, 100% been the subjectivists who refuse any blind tests. Why would something that is supposedly easily heard by anyone all of a sudden be gone when a blind test is performed? It should at least make you wonder why.
The best of class D is already performing as well class A amplifiers and will continue to improve with new designs using Gallium Nitride (GaN) power devices. GaN is capable of MHz switching frequencies and rise/fall times in the nanosecond, allowing 10s of nanosecond dead times. Technology and scientific deniers can keep their fingers in the dike with their eyes and ears closed as long as they like.
Gallium Nitride (GaN) properties are quite different from silicon. Early on in the technology, devices made with GaN were depletion mode devices (on at zero gate voltage and needed a negative voltage to turn the device off). Enhancement (off at zero gate voltage) mode devices are now available. GaN’s advantage are smaller physical size for the same current and voltages as silicon, lower conduction losses, higher operating temperatures and much faster switching times, which reduces switching losses. Here’s a link to a company that produces GaN devices and modules. Two of my former colleagues currently work here.
epc-co.com
Wow, nice company. I checked out the website and it really brought me up to date. I'm only about 8 years behind the times. GaN is really taking over a lot of areas. It really is worth it. Best news today. Now I can drink my coffee and feel smug in knowing that the new kid on the block is taking over. I should have invested heavily in GaN. I missed the boat, again!Gallium Nitride (GaN) properties are quite different from silicon. Early on in the technology, devices made with GaN were depletion mode devices (on at zero gate voltage and needed a negative voltage to turn the device off). Enhancement (off at zero gate voltage) mode devices are now available. GaN’s advantage are smaller physical size for the same current and voltages as silicon, lower conduction losses, higher operating temperatures and much faster switching times, which reduces switching losses. Here’s a link to a company that produces GaN devices and modules. Two of my former colleagues currently work here.
Gallium Nitride (GaN) ICs and Semiconductors – EPC
Efficient Power Conversion Corporation (EPC) is a leader in Gallium Nitride (GaN) based power management devices. EPC was the first to introduce enhancement mode Gallium Nitride (eGaN) on Silicon transistors for applications such as, wireless power, autonomous vehicles, high-speed mobile...
EPC is the front runner for GaN. There are many great videos on their website. My colleagues and I worked on some Government projects at GE Global Research but most were DOH projects with x-ray technologies.
Thank you for your wonderful post.
Interesting that the only graph displayed, on my ipad, is figure 6. None of the others are shown. I’ll try to load it on my laptop.
That looks like Amir testing his garden products! Amir is seeking the truth from his vegetables.
https://epc-co.com/epc/cn/gan技术杂谈/post/13752/gallium-nitride-brings-sound-quality-and-efficiency-to-class-d-audio
