UCD 25 watts to 1200 watts using 2 mosfets

[Dinithm]

its impossible to optimize the cass d amp without ocsilloscope switching points.deadtime,voltage spikes. if you try try try and try you wast more money and time than buyng osciloscope.

 

[birgitay]

Yes the room is right.

 

[birgitay]

hello to friends .. This circuit came to me. The top logic integrated has been deleted. I suspect that cd4070 or 74hc00 .. I could not simulate the scheme. But the scheme is strong. Can you simulate and try? I didn't work at the PCB. The ir2112 will be ir2110-ir2113 instead. The Mosfets 30n40-irfp260. 163 degrees to the coil. It came to me very high value but it does not work like .. 27k resistance 2 w. 1k + 1k resistance. 2 w. 5,6k resistors 3w. D5 mur160

 

[birgitay]

İnductor 163 uh original kit

 

[birgitay]

İnductor 163 uh.

The final circuit is 163 degrees at last. I guess it's worth the load too .. 22UH-33UH NOT be worth being? Door resistors 100 ohms. This value is not high either? And in the above pdf file, I fixed my connection to the hi-low outputs. I also fixed the R7 bracket in the wrong place and corrected it.

 

[birgitay]

PCB and ventilation installation .. But the load reaction at the output is 10 ohms lit. Then it's disabled. Ir2110 is corrupting .. I wonder whether the errors cd4070 is a different logic?

 

[Sergei Nizovcev]

Bridge class-d
Усилители Мощности Класса D - Страница 336 - Усилители мощности класса D - Форум по радиоэлектронике

 

[birgitay]

YouTube
900watt D Class 8 ohm speaker. 2xdc50volt .
I could not run the enclosed circuit. Who can help for this circuit? Really good work

 

[NMOS]

YouTube
900watt D Class 8 ohm speaker. 2xdc50volt .
I could not run the enclosed circuit. Who can help for this circuit? Really good work

schematic please, if no have noboday can and want help


If no have please redesign schematic, software easy to find,....often freeware


with schematic we can try and help


Please note: sometimes PCB have design mistakes and not corrected

schematic too

 

[birgitay]

Did you not see the scheme? I just couldn't solve the logic

 

[birgitay]

What is the difference between cd4070 - hef4070? Ir2110 is lit and the class d amplifier is not working. Is the original circuit used in the Cd4070 is the difference Hef4070?

 

[Dinithm]

.r11[4.7k]it connected to -5v so hef4070 ic always recive stedy
logic high input. so amplifire never oscilate andalways -85v

 

[birgitay]

.r11[4.7k]it connected to -5v so hef4070 ic always recive stedy
logic high input. so amplifire never oscilate andalways -85v

We didn't tell you exactly? So doesn't hef4070 work in this circuit?

 

[Dinithm]

We didn't tell you exactly? So doesn't hef4070 work in this circuit?

check that 4.7k in this originel circuit and your circui r11 this circiu it set to -85v itmeans cd 4070 logic 0.inyourcircui it set to -5v witch is logic hi to cd4070

 

[birgitay]

Should I connect this transition cd4070 or hef4070?

 

[Dinithm]

sorry everyone ,I edited one schematic .

Should I connect this transition cd4070 or hef4070?

An externally hosted image should be here but it was not working when we last tested it.

your schematic has many errors ...
CD4070 and HEF4070 same logic.

 

[birgitay]

No error. This is the original schema

 

[Dinithm]

No error. This is the original schema

i try to show you what are the mistakes on your schematic. not original schematic.original one is ok and great .

 

[birgitay]

i show you what are the mistakes on your schematic. not original one.original one is ok and great .

the original schema is the protel. I shared a view pdf file in the room

 

[birgitay]

No error. This is the original schema

Orijinal schematic