Comparator Output with HIP4080

[smartsabby]

Hello guys,
Im using the HIP4080 as the gate driver for my class D audio amplifier design. It also has an input comparator and so I guess I should not have to use an external op-amp to generate the PWM switching signal.. I have connected the circuit as given in the application note of HIP4080. I am not able to see any square pulse at the output of the comparator...
Please let me know how can see the output of the comparator on OCR?

Thanx a lot...

 

[Whortless]

Hi there,

I think you did not try the search! Try search or these :

http://home20.inet.tele.dk/audio/index.htm

Baldin already did an amplifier with HIP4080.

And this;

http://www.diyaudio.com/forums/attachment.php?postid=906537&stamp=1146601944

Regards

 

[smartsabby]

Thanks ...