Class D Amplifier with HIP4080A

adailton · 20th July 2011, 12:48 PM

Hi Everyone,

Im building a classd amp with HIP4080 but I didn't see anything on comparator output. Firstly, I supplied IN+ and IN-I for trying this output, but no signal there. May my HIP4080 is crashed(i tried two HIP4080, the same result ).(i tried 2~8 volts DC for inputs)

+general question: IN+ and IN- inputs have how much voltages and currents?

luka · 20th July 2011, 03:48 PM

check if you have anything similar to this

http://www.sensibleaudio.dk/HIP4080_...%20Class-D.pdf

taken from
Prototype 2

adailton · 20th July 2011, 04:32 PM

No, my circuit isn't like that is ucd class d. My circuit have triangle generator (xr2206). I generate good triangle wave and sine wave like sound, then I tie these inputs to HIP4080's comparator inputs. But I didn't see anything on output pin(pin5).

My input signals ~0V mean value. It means my signals swing around 0v. Isn't it true? or anything else?

20th July 2011, 12:48 PM	#1
adailton diyAudio Member Join Date: Feb 2011	Class D Amplifier with HIP4080A Hi Everyone, Im building a classd amp with HIP4080 but I didn't see anything on comparator output. Firstly, I supplied IN+ and IN-I for trying this output, but no signal there. May my HIP4080 is crashed(i tried two HIP4080, the same result ).(i tried 2~8 volts DC for inputs) +general question: IN+ and IN- inputs have how much voltages and currents?

20th July 2011, 03:48 PM	#2
luka diyAudio Member Join Date: Sep 2005 Location: in Slovenia :)	check if you have anything similar to this http://www.sensibleaudio.dk/HIP4080_...%20Class-D.pdf taken from Prototype 2 __________________ home page @ http://www.classdaudio.co.cc @ 24/7 all year long I FEEL SLOVENIA

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20th July 2011, 04:32 PM	#3
adailton diyAudio Member Join Date: Feb 2011	No, my circuit isn't like that is ucd class d. My circuit have triangle generator (xr2206). I generate good triangle wave and sine wave like sound, then I tie these inputs to HIP4080's comparator inputs. But I didn't see anything on output pin(pin5). My input signals ~0V mean value. It means my signals swing around 0v. Isn't it true? or anything else?

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