IR2113 blowing ! help needed...

[luka]

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?

 

[Tewin]

hi alexclaire !

Could you send a schematic & pcb to me .
Thanks you very much.


thanggur_en@hotmail.com

 

[odnaizutra]

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??

 

[pawan borkute]

smps for audio amplifier

if you have smps for audio amplifier schematics and pcb layout and transformer winding turn

 

[soc15]

helpme

Could you send a schematic & pcb to me .
Thanks you very much.
somcha.P@gmail.com

 

[stewin]

please & 1 to me to stevekamala@yahoo.com

 

[malbasicradan]

Hello alexclaire !

Could you send a schematic & pcb to me .
Thanks.

malbasicradan@gmail.com

 

[ionutzxpo]

hello could you send a schematic and pcb to me to

thank you ! ionutzxpo@yahoo.com

 

[luka]

pcb is no go, schematic you have on my page...

 

[rezamir]

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

 

[qsa]

Hi please can you send me Schematic & pcb of class d amp & smps too by email ?

qsaelectronic@yahoo.com

very hard to find something

 

[rezamir]

Why

 

[rezamir]

Hello alexclaire !
could you send a schematic and pcb to me to
Please help(

 

[ericbrooking]

Over Current

You only need negative side sensing. When current flow into positive side, you get a current image trought the recovery diode...
Fredos

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

 

[mimura]

hello could you send a schematic and pcb to me to

thank you ! v-vvv@hotmail.com

 

[paul_usa_22]

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

 

[nigelwright7557]

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.

 

[luka]

56r is a bit high, normaly one uses 10-22r

 

[nigelwright7557]

56r is a bit high, normaly one uses 10-22r

I found my mosfets ran hot with 22r.

 

[luka]

I found my mosfets ran hot with 22r.

sure, but add dead time before IR, don't slow fets down with high Rgates