Irs2092

luka · 13th September 2009, 09:39 AM

ok so I have done PCB, I think its ok, only thing now that I'm not sure of is how to connect powerGND with analogGND, the are seperated by -Vcc plane

So one option 1. is via Ferrite Bead and 2. would be very easy to implement, all corners are mounting places, and those places, for now would be connected [one side is PGND, other side is AGND] via heatsink with screws.

Would 2nd option work, and how good?

berni8k · 13th September 2009, 09:43 AM

Yeah you could solder something like that between them. you can also run then together to a star ground.

luka · 13th September 2009, 10:04 AM

but is star ground even possible here? as I see it now, I have only cables left to connect to board, and I'm not sure that would be star connection, I mean, analog has almost no current in path and connecting it via heatsing would work?

berni8k · 13th September 2009, 10:17 AM

Well you could also use a 10Ohm resistor between if there is no current, it will keep any ground loops from happening.

sphinx · 16th September 2009, 10:10 PM

I'd suggest running a wire from pin 2 of the IRS2092 to output (speaker) ground or input power connector ground. this worked well for me

luka · 16th September 2009, 10:50 PM

Quote:

Originally Posted by sphinx

I'd suggest running a wire from pin 2 of the IRS2092 to output (speaker) ground or input power connector ground. this worked well for me

I can always do this, also I can do it via mounting studs (heatsink), resistor, bead,...

I don't think anything can go wrong in any case, right?

ttako · 8th October 2009, 07:31 PM

Hi,

Is there any (easy) way to use the IR series complete driver ICs up to a higher supply voltage, like +/-160...200V?

thanks,

Tamas

luka · 8th October 2009, 07:43 PM

I'd say yes, but...you would need to use fet drive cells, not IR itself, which would work up to +/-100... so, you'd have normal setup ith IR, but limit output so that is has lower max voltage, and use say 200v fet drive cells to drive fets with that high voltage

BTW: amp almost done, only IR and fets are missing

theerasak khan · 8th October 2009, 10:16 PM

Quote:

Originally Posted by luka

I'd say yes, but...you would need to use fet drive cells, not IR itself, which would work up to +/-100... so, you'd have normal setup ith IR, but limit output so that is has lower max voltage, and use say 200v fet drive cells to drive fets with that high voltage

BTW: amp almost done, only IR and fets are missing

Please shown the circuits diagram. Thankyou

luka · 9th October 2009, 07:55 AM

I don't have schematic, but if you understand this some what and if you look at picture, position of elements, you will understand how this is set up

13th September 2009, 09:39 AM	#1
luka diyAudio Member Join Date: Sep 2005 Location: in Slovenia :)	Irs2092 ok so I have done PCB, I think its ok, only thing now that I'm not sure of is how to connect powerGND with analogGND, the are seperated by -Vcc plane So one option 1. is via Ferrite Bead and 2. would be very easy to implement, all corners are mounting places, and those places, for now would be connected [one side is PGND, other side is AGND] via heatsink with screws. Would 2nd option work, and how good?

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13th September 2009, 09:43 AM	#2
berni8k diyAudio Member Join Date: May 2009	Yeah you could solder something like that between them. you can also run then together to a star ground.

13th September 2009, 10:04 AM	#3
luka diyAudio Member Join Date: Sep 2005 Location: in Slovenia :)	but is star ground even possible here? as I see it now, I have only cables left to connect to board, and I'm not sure that would be star connection, I mean, analog has almost no current in path and connecting it via heatsing would work?

13th September 2009, 10:17 AM	#4
berni8k diyAudio Member Join Date: May 2009	Well you could also use a 10Ohm resistor between if there is no current, it will keep any ground loops from happening.

16th September 2009, 10:10 PM	#5
sphinx diyAudio Member Join Date: Nov 2004 Location: Toronto, Ontario	I'd suggest running a wire from pin 2 of the IRS2092 to output (speaker) ground or input power connector ground. this worked well for me

8th October 2009, 07:31 PM	#7
ttako diyAudio Member Join Date: Dec 2002 Location: Hungary/ Budapest	Hi, Is there any (easy) way to use the IR series complete driver ICs up to a higher supply voltage, like +/-160...200V? thanks, Tamas

8th October 2009, 07:43 PM	#8
luka diyAudio Member Join Date: Sep 2005 Location: in Slovenia :)	I'd say yes, but...you would need to use fet drive cells, not IR itself, which would work up to +/-100... so, you'd have normal setup ith IR, but limit output so that is has lower max voltage, and use say 200v fet drive cells to drive fets with that high voltage BTW: amp almost done, only IR and fets are missing

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