low pass filter
when I had this capacitor too big, my switching would not go above some freq.. You could in a way look at is as your max freq. setting
Good morning. Design and build the amplifier below and did not work.
Does anyone have some hint of what might be wrong?
Please contact me by email.
Thank you.
luizcpimenta@yahoo.com.br
Does anyone have some hint of what might be wrong?
Please contact me by email.
Thank you.
luizcpimenta@yahoo.com.br
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try irs3000d amp
http://www.diyaudio.com/forums/class-d/166214-ucd-25-watts-1200-watts-using-2-mosfets.html
or discreet d
diysmps
Hi guys, its long time that I wrote here..
I have one question.. Is it posible that one 12V aux supplay with (on example) MJE13009 supplays two IRS2092 with gate buffers, and if it can, can u tell me calculation for resistor that i marked on picture?
BTW can enyone look at my project and tell me is everything allright?
tnx
I have one question.. Is it posible that one 12V aux supplay with (on example) MJE13009 supplays two IRS2092 with gate buffers, and if it can, can u tell me calculation for resistor that i marked on picture?
BTW can enyone look at my project and tell me is everything allright?
tnx
Attachments
It looks similar to one of my 2092 designs.
I didn't use the diode and 10k on my 4227 gates. I relied on 2092 deadtime at max.
The 1nf across the audio input is a bit odd, usually an RC is used if you want to get rid of RF. I didn't use an input filter and it worked fine.
The 2092's take upto 150mA so two will take upto 300mA into VCC.
You will need a heatsink on the MJE13009.
I didn't use the diode and 10k on my 4227 gates. I relied on 2092 deadtime at max.
The 1nf across the audio input is a bit odd, usually an RC is used if you want to get rid of RF. I didn't use an input filter and it worked fine.
The 2092's take upto 150mA so two will take upto 300mA into VCC.
You will need a heatsink on the MJE13009.
MJE13009 is on heatsink with output fets.. What is calculation for Rtip ressitor? Is it same like for one (8mA current to base of MJE) or higher current to base?
Can amp work fine if i made it like on schematic?
Tnx
Can amp work fine if i made it like on schematic?
Tnx
Rtip resistor will be half of the value for one 2092.
I haven't used all your circuit so I cant vouch for the other parts outside of the 2092.
I haven't used all your circuit so I cant vouch for the other parts outside of the 2092.
I dont understand, with half, 4mA current to base of MJE13009, on colector current will be lower, and I need higher current for two 2092
For one Rtip is calculated (Ucc-13V) / 8mA, so for base of MJE13009 current is 8mA for one 2092
For one Rtip is calculated (Ucc-13V) / 8mA, so for base of MJE13009 current is 8mA for one 2092
If you half the resistance you will get twice the current.
Ideally you would calculate from B- to -12 volts and use half the max current into the zener and work out the resistor from that.
One more question.. I notice that ucd amp with IR2110 in half bridge operation has lower bass, not that strong but same amp in full bridge operation has much stronger and deeper bass. Is the same with IRS2092 amps or this amp in half bridge has strong bass?
tnx
tnx
it all depends with the input stage design configuration e.g the lm311, lt 1016 or if you are using tlo71
hi wahyuos you havent used gate drive buffers e.g bd139 and bd140 or smd ztx series ? ir2092 needs buffer stage unless you are using special output fets😉
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