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Old 13th September 2009, 08:39 AM   #1
luka is offline luka  Slovenia
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Default 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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Old 13th September 2009, 08:43 AM   #2
berni8k is offline berni8k  Slovenia
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Yeah you could solder something like that between them. you can also run then together to a star ground.
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Old 13th September 2009, 09:04 AM   #3
luka is offline luka  Slovenia
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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?
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Old 13th September 2009, 09:17 AM   #4
berni8k is offline berni8k  Slovenia
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Well you could also use a 10Ohm resistor between if there is no current, it will keep any ground loops from happening.
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Old 16th September 2009, 09:10 PM   #5
sphinx is offline sphinx  Canada
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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
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Old 16th September 2009, 09:50 PM   #6
luka is offline luka  Slovenia
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Quote:
Originally Posted by sphinx View Post
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?
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Old 8th October 2009, 06:31 PM   #7
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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
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Old 8th October 2009, 06:43 PM   #8
luka is offline luka  Slovenia
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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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Old 8th October 2009, 09:16 PM   #9
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Quote:
Originally Posted by luka View Post
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
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Old 9th October 2009, 06:55 AM   #10
luka is offline luka  Slovenia
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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
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