Hi
I have some kind of problem. My supply is not much more powerful then amp, so its voltage is flocculating. So at some supply voltage that is lower than idle, amp starts to put only +Vcc on output and stays there if current is goint to load. If I remove load and reconnect it, it work normaly on. What to do?
I have some kind of problem. My supply is not much more powerful then amp, so its voltage is flocculating. So at some supply voltage that is lower than idle, amp starts to put only +Vcc on output and stays there if current is goint to load. If I remove load and reconnect it, it work normaly on. What to do?
hi alexclaire !
Could you send a schematic & pcb to me .
Thanks you very much.
thanggur_en@hotmail.com
Could you send a schematic & pcb to me .
Thanks you very much.
thanggur_en@hotmail.com
looks like problems on pwm .unbalanced ffedback can bew the problem.
Did you post the schematics?Its regulated or not?If you remove the feedback , how does it perform??
Did you post the schematics?Its regulated or not?If you remove the feedback , how does it perform??
smps for audio amplifier
if you have smps for audio amplifier schematics and pcb layout and transformer winding turn
if you have smps for audio amplifier schematics and pcb layout and transformer winding turn
Hi alexclaire🙂
I was very tired because I did not find a good class D amplifiers
Please send Schematic & pcb of class d amp & smps in my email
Thank you for your helpreza_mir7@yahoo.com
I was very tired because I did not find a good class D amplifiers
Please send Schematic & pcb of class d amp & smps in my email
Thank you for your helpreza_mir7@yahoo.com
Hi please can you send me Schematic & pcb of class d amp & smps too by email ?
qsaelectronic@yahoo.com
very hard to find something
qsaelectronic@yahoo.com
very hard to find something
Over Current
Hi Fredos,
This does not provide fast over current protection, correct? You have to wait until after the FET shuts off and by then it could be dead. I guess this is for an average overcurrent "slower" event?
Thanks
Hi Fredos,
This does not provide fast over current protection, correct? You have to wait until after the FET shuts off and by then it could be dead. I guess this is for an average overcurrent "slower" event?
Thanks
pcb & schematic
hi alexclaire could you please send me the schematic and pcb files with final and working class d amp
paul_usa_22@yahoo.com
thank you
hi alexclaire could you please send me the schematic and pcb files with final and working class d amp
paul_usa_22@yahoo.com
thank you
I found my IRS2092 ran hot with 4227's.
I used instead a proper class d moseft irfb4019 and with these it ran cold.
The input capacitance is also quite a bit less with the 4019.
The 4019 manages 17 amps so is not lightweight.
With my class d amp using the 2113 i used a diode in parallel with a 56R resistor so the mosfet switches off faster than it switches on.
This worked very well for me. It effectively emulates deadtime and stops shootthrough.
I used instead a proper class d moseft irfb4019 and with these it ran cold.
The input capacitance is also quite a bit less with the 4019.
The 4019 manages 17 amps so is not lightweight.
With my class d amp using the 2113 i used a diode in parallel with a 56R resistor so the mosfet switches off faster than it switches on.
This worked very well for me. It effectively emulates deadtime and stops shootthrough.
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