UCD 25 watts to 1200 watts using 2 mosfets

[Dimonis]

@stewin , opor
hi guys here is my new bridge class d

What material is for the inductors ?

If it's a pure bridge - better wind both on one core.

 

[manojtm]

Hi AKRAJ.

some modifications done my new schematics that i will post today

 

[manojtm]

Hi All

This is My Final circuit with Over Temp.,Over Current,Auto Limiter,CLIP and DC Protect with Delayed ON.
I designed a PCB without Auto limiter,CLIP & DC Protect
It can give an OUTPUT 1,875Watt @4Ohm Load (3xIRFP250)

 

[manojtm]

Hi all

Speaker protection and Power supply

 

[gerry_morales]

@opor
same here too i dont have any test instruments, only ears and fingertips, it is a lot better in sound compared to the authors circuit. i have tested it in mid tops sound is clear. very nice

 

[CPX]

opor, gerry_morales
You only need a sound card for thd and imd measuremnts..even motherboard bundled ones have <0.01.

 

[andrewlebon]

bridging ucd amplifier

Hi Manojtm
greetings having made ucd amp and playing it at 60 dc rails its working ok do you have any schematic BRIDGED ir2110 amp or schematic for this amp bridged can you help out
warm regards
andrew lebon

 

[gerry_morales]

@cpx
hi bro thanks for the tips, anyway i will try to send it to a friend of mine sir irvyne jay, he had the test instruments to test it. i only know how to use dmm.

 

[irvynejay]

bridge

on going project hope it works like gerry made thax sir gerry

 

[Dimonis]

on going project hope it works like gerry made thax sir gerry

That is the blue material of the toroids?
Never seen before.

 

[Dimonis]

Hi All

This is My Final circuit with Over Temp.,Over Current,Auto Limiter,CLIP and DC Protect with Delayed ON.
I designed a PCB without Auto limiter,CLIP & DC Protect
It can give an OUTPUT 1,875Watt @4Ohm Load (3xIRFP250)

The L3 coil\inductor will simply melt based on that core

 

[Dimonis]

Hi All

This is My Final circuit with Over Temp.,Over Current,Auto Limiter,CLIP and DC Protect with Delayed ON.
I designed a PCB without Auto limiter,CLIP & DC Protect
It can give an OUTPUT 1,875Watt @4Ohm Load (3xIRFP250)

How?????
75V*75V /2/4Ohm =703Watt

 

[andrewlebon]

bridging ucd amplifier

Hi
greetings please can any one help to see if this schematic is correct for
bridging ucd amp as i am new to class d any help greatly appreciated
warm regards
andrew lebon

 

[Dimonis]

Hi
greetings please can any one help to see if this schematic is correct for
bridging ucd amp as i am new to class d any help greatly appreciated
warm regards
andrew lebon

Hi Andrew !
The schematic is relatively correct , I know the author , he's just an amatuer theorist3
Catch a working bridge

 

[CPX]

Dimonis:
It is an ultra low permeabily iron powder toroid.

 

[Dimonis]

ultra low .

How low?
The lowest that i know is "the red core" - permeability = 10

 

[CPX]

No..blue and yelow are lower..look here:
Toroids - Micro Metals / Iron Powder

Red is just more famous..i also used red because i had no space for others since more turns were needed for the same inductance.

 

[Dimonis]

Dimonis:
It is an ultra low permeabily iron powder toroid.

Sorry , I got it - material №28 permeability = 22 , not so low аs though

 

[Dimonis]

No..blue and yelow are lower..look here:
Toroids - Micro Metals / Iron Powder

Red is just more famous..i also used red because i had no space for others since more turns were needed for the same inductance.

Didn't find blue

 

[CPX]

17 Mix (Blue/Yellow).
I do not think is pure blue in those pictures...
Also the red i have is red/gray in fact....there are lots of variations..