6KW class D
- Thread starter kiakiaka
- Start date
noz-25
LEDadict
Hi Malmir!The voltage is near 160V and many FETs can easely survive that. The current as i calculated it was near 13A per FET. Again in RMS. Vpp would be near 440V. Might be possible. But for how long.
Anyone dares trying ?
Yes u r right but You must admit it's stupid if that power is possible for 20mS!?Name of this tread does not deserve name "6KW amp".However,this is very quality components used in this shematic and i guess it has plenty of power.
PS:MiscrosiM where are You man?We are interested about Your opinion.
Regards,Nikola
Ok,probably I am the guy who will make this with few modification to double the power.Ofc i will upload the video.If u calculate carefully and read everything about IC u can easy see that this can work easy for a loooong time period.For 2Ohm load u need PSU to be +/-154V if efficiency is 100% , but they claims that max efficiency is 96%.So psu should be min +/-160V.Current per fet is 18,2A.IF Rds ON is 0,1Ohm......then power dissipation per fet is on max power 33W.I know at least 10 types of fets which can do the job.But main thing here is to know which ones r the best.From me for now this is enough.
Dont think.ITs about do u know something or not.In sience there is no guessing....and also sience is not trading activity.U know or not.I am not evil in my talking but i want to suggest u to not to push your conclusions to be answers for all of us here.I put this schematic on purpose to push people to start thinking out of the box.
Kiakiaka. What is funny about do the amp design against 2Ohm load ?. My speakers are very close to 8 - 6 Ohm from 22 - 19000 Hz, thus i would never ever short an amp nor try it ?
Where do i go wrong ?
You calculate the voltage as Vp but keep the current as rms ?
Ip = sqrt(6000 / 2)/3 = 18.2574
Ipeak = Ip * sqrt(2) = 25.8199 Or am I wrong here ? Can't remember actually ?
Where do i go wrong ?
You calculate the voltage as Vp but keep the current as rms ?
Ip = sqrt(6000 / 2)/3 = 18.2574
Ipeak = Ip * sqrt(2) = 25.8199 Or am I wrong here ? Can't remember actually ?
noz-25
LEDadict
Kiakiaka
If You want to make amp with IRS2092,here is my help:IRAUDAMP 7D.Amp class D with IRS2092 and 2x MOSFET.In bridge mode give (so with 4 MOSFETs) 500watts.This is complete project.
I hope You like it,all best
I have everything about all IRAUDAMPs ... and huge experience too.I made many of them (amplifiers).Thank u for the reference.I am to bussy now to start with new type SMPS that i have in my mind and also with new type of D class amplifier .....soon as i have free time i will start with work.For this 6kw amp i made almost complete schematic.....i designed all the protections on my way also i designed something that can boost power x2 and i have full bridge result without using other IC IRS2092 .... i will not publish sch (its full intelectual property and i will try to comercialise it) but i will show the result.No bad fellings.
Regards,
Regards,
Dimonis
New member
What are you talking about? 2092 can withstand 200V single or +/-100V supply , but due to pumping and other factors , the safe operating is +/-85V .
So with and ideal PSU of +/-85V you can get not more than 1800W on 2Ohm load.
P=U*U/2/2Ohm =85*85/2/2= 1806Watts
Last edited:
Dimonis
New member
Don't think that any power amp needs a precise PWM , reason? There are many problems with quick response of feedback in such circuits.
"quick response of feedback " .... i agree 100% .....i didnt mention anything about feedback.I said that precise and good pwm is best way to improve D class.Better pwm is higher efficiency is.
Anyone got a better quality pic of the circuit?
