Hey sir Aper i work very hard on your Friendly DIY apex D500 ,never work ,yours clas AB and H very respeted in DIY forum ,y dont undestand because ,share bad schem and boards not tested , realy a joke ,Diyaudio the best.......
T68kv, sis favor can you post the diameter size of the toroid inductor and the wire gauge plus the no.of turns...? 😀
I'll see if I can find similar size's on 2nd hand boards being sold in Raon area, I've been seeing a lot of boards with toroids in it, I can't DIY at the moment I just burned my pcb drill 🙁 I might as well go parts hunting for the meantime.😀
Thanks!
Abet,
Out Dia - 1.2"
In Dia - 0.7"
Height - 0.4"
Approx 20-22 turns of 16AWG
Remember, not all core have the same permeability value. I suggest that you also try using ferrite EE with gap 1-2mm gap.
Out Dia - 1.2"
In Dia - 0.7"
Height - 0.4"
Approx 20-22 turns of 16AWG
Remember, not all core have the same permeability value. I suggest that you also try using ferrite EE with gap 1-2mm gap.
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^ OK! thanks,
My etched pcb for IRS900D (done manually😀), thanks Thien!
(Sorry, been using cellphone cam 🙂)
My etched pcb for IRS900D (done manually😀), thanks Thien!
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
(Sorry, been using cellphone cam 🙂)
The tl084 power rail must be uncouple with 2 pairs 0.1uf and 25uf 50v respect to gnd (pin 4 y 11t) and the uper side totem pole 1n4148 is inverting, more late y see you more mistakes if find it, tanks exelent design sorry poor english
Hi Sameerx1
greetings scrap this design gate tracks are to long make it like triell 1500 watts
warm regards
andrew lebon
greetings scrap this design gate tracks are to long make it like triell 1500 watts
warm regards
andrew lebon
The irs2092 will output 1.5 amps and I couldnt get it to drive 4 irfb4227 without the chip resetting. In fact it struggled with one pair.
To get it to work I had to add npn/pnp gate buffer BD243/BD244.
pls look also the bandwidth of those bjt not only the current capability ..pls correct me if im wrong
hi whortless
which is the best transistor to use as buffer in totem pole . to drive 4 pairs irfb 4227 or irfp250 or irfp264 or (irf640 6pairs)?? will the 2SB772/2SD882 work or there is a better pair.
which is the best transistor to use as buffer in totem pole . to drive 4 pairs irfb 4227 or irfp250 or irfp264 or (irf640 6pairs)?? will the 2SB772/2SD882 work or there is a better pair.
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hi thienchay. have you built the irs900 pcb? seems that the pcb is different from the schematic at the cd4049 chip.
the pinout for the cd4049 chip is messed up at your pcb and at the original pcb from detex. anyone have successfully built the irs900d?