GaN-based Class D power amps
This is ridiculous, just put up a post here to correct what you need to do, this thread is already entrenched, all your going to achieve is a mess! (delete the new thread) your making my head spin https://i.pinimg.com/originals/11/a5/e8/11a5e81b7fd36e47ac16dee0ecf0e1f8.png Cheers George |
Here is a EPC GaN chart showing all the different GaN fets, the ones in the 200w eGaNAMP2016 GaN Evaluation amp EPC2016C, judging by this chart are capable of capable 36A each with a rail of 100v. Then I hope this is right, think you’ve got the EPC2033 which has higher 150v but it can do a whopping 48A each!!!! And the EPC2022 and EPC2021 at 90A???? https://epc-co.com/epc/Portals/0/epc/documents/briefs/ab003%20egan%20fets%20for%20class-d%20audio.pd... Cheers George |
The quality of sound reproduced by the audio amplifier, measured by THD (Total Harmonic Distortion), DF (damping factor), and IMD (inter-modulation distortion) is influenced by the characteristics of the power transistors used.eGaN FETs’ near ideal switching performance due to lower propagation delays and faster slew rates (due to their lower gate capacitance) and zero QRR enable very short dead times to provide lower open loop distortion, lowering the THD and overall losses. This reduces feedback, driving down T-IMD and DF to provide a step jump in the sonic quality of Class-D audio amplifiers and lowering overall losses Everything I've been telling you about reducing or eliminating dead time is in the above statement from the pdf you linked, quoted above. They are so cheap now its hard to imagine why someone would not use them. |
