UCD 25 watts to 1200 watts using 2 mosfets

[NMOS]

Hi Manoj
greetings already amp is playing on 140 volts dc +/-
i will post pics of working amp any more powerful fets with higher rails
warm regards
andrew lebon

but IRFP23N50 is divested....

How about

IRFP4868 is only 300V but powerful


do you share your changes in AUDamp for 140 V DC

 

[PetruV]

+40V 0v -40v / 10A SMPS For Power Amplifier post#9
Hi PetruV
greetings i have not finished the pcb layout as the core i am using is small for 130
volts dc+/- for my dclass amp if you are new to smps please make the smps from the link above i dont think there is a more EASY smps than this for first smps it can be made on
dot pcb i used IRF460 for fets 15 volts dc can be modified easier if you want so my sincere advice make this smps any help you need will be extended to you just start this smps
warm regards
andrew lebon

Thanks,i would want a smps design which is 90v 2000w or around that

 

[PetruV]

I wont be using any smps im my amp.They are too compicated im goung to use transformers

 

[NMOS]

Hi NMOS,

AUD600, no issues it will start at very low signal input and no noise low temp at full drive and good sound.

Regards
MANOJ

Hi MANOJ

Im a little confused, have only REV 3.0 schematic but its not complete

can you send me the rest by email phoonpool@googlemail.com

there is Bias + and - and S

how much Volt for + and -

for what is S ?

 

[manojtm]

there is Bias + and - and S

how much Volt for + and -

for what is S ?

Hi NMOS,

BIAS (+) is +12V
BIAS (-) is -VE Supply rail
BIAS (S) is OC Protect sense/signal.

Im a little confused, have only REV 3.0 schematic but its not complete

I think you have only AMP schematic.if you need a power side schematic then i will send

Regards
MANOJ

 

[andrewlebon]

Hello
greetings is it possible to drive more than 2 pairs of IRFP4768 from IR2010 without using totem configuration
warm regards
andrew lebon

 

[Deleted member 148505]

Hello
greetings is it possible to drive more than 2 pairs of IRFP4768 from IR2010 without using totem configuration
warm regards
andrew lebon

No don't use it without totem pole even in 1 pair and 150kHz sw. freq, IRFP4768 has high Qg, which translates to high dissipation in mosfet gate driver. Read AN-978, there's a calculation for the approximate power dissipation for the gate drive IC.

Also IR2010 has 200V max of Voffset, "ideally" you can only run it with +-100V rails.


Regards,
Lester

 

[NMOS]

No don't use it without totem pole even in 1 pair and 150kHz sw. freq, IRFP4768 has high Qg, which translates to high dissipation in mosfet gate driver. Read AN-978, there's a calculation for the approximate power dissipation for the gate drive IC.

Also IR2010 has 200V max of Voffset, "ideally" you can only run it with +-100V rails.


Regards,
Lester

Some PA Manufacturer using IR2010 and drive 2 pair IRFP250N without totem pole. Does it mean this design is not good ?


How about IR2110 driving without totem pole 1 pair FDP51N25 or 2 pair IRFP 250n is it possibile with 400 khz ?

 

[NMOS]

Hi NMOS,

BIAS (+) is +12V
BIAS (-) is -VE Supply rail
BIAS (S) is OC Protect sense/signal.


I think you have only AMP schematic.if you need a power side schematic then i will send

Regards
MANOJ

Yes I need power side schematic. Can you share and send by email to

phoonpool@googlemail.com ?

Thanks and best regards

 

[Deleted member 148505]

Some PA Manufacturer using IR2010 and drive 2 pair IRFP250N without totem pole. Does it mean this design is not good ?


How about IR2110 driving without totem pole 1 pair FDP51N25 or 2 pair IRFP 250n is it possibile with 400 khz ?

Qg, gate resistor and switching frequency primarily determines the dissipation. As long as the junction temp of the driver IC is maintained below 125 deg C, I think there wouldn't be a problem.

 

[exflaco]

Adrew its possible 3 pairs 4768 but osc frq max 50khz (sub bass 20-5000)response see class d card amp powers monoblok

 

[exflaco]

Ir 2110 max 2a ir2010 max 3a tou coul manage 2 pairs 2110 and 3 pairs 2010

 

[andrewlebon]

Hi Exflaco
greetings i am looking at a schematic 5 pairs irf4768 driven from IR2010
warm regards
andrew lebon

 

[exflaco]

Or could manage 6 igbts per side ask Irvynejay ;-)

 

[andrewlebon]

SMPS WITH CLASSD AMP

Hello
greetings some pics of smps with class d amp still to be fine tuned made by SAMEERX1 and me
warm regards
andrew lebon

 

[andrewlebon]

ir2153 smps

smps with EE65 core made by sameerx1
warm regards
andrew lebon

 

[suryadi5417]

hi diyers
greetings has anyone built this amplifier with success
feedback would be greatly appreciated





thanking you
Andrew lebon

This is circuit wrong(fake) ?

 

[stewin]

smps with EE65 core made by sameerx1
warm regards
andrew lebon

Hi Andrew please post the pcb files and components . I Want to try it out

 

[andrewlebon]

DSCN3933 - YouTube

 

[suryadi5417]

DSCN3933 - YouTube

Please post your layout and schema couse mine is not working..
Regards