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Old 16th February 2012, 09:20 AM   #1
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Default IRS2092 Class-D Amplifier

HI,

I'm looking to run 2x 200W RMS speakers with a Connexectronic IRS2092 Modular Amplifier. The 600W Version. I also want to use one of these in line with the circuit aswell. Connexelectronic

What power supply would be recommended??

Jake
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Old 17th February 2012, 08:53 PM   #2
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I would go for two 750VA transformers or a single 1500VA transformer.
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Old 17th February 2012, 09:00 PM   #3
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I'd get one of the excellent Connexectronic SMPS, cheaper (I think) and more efficient.
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Old 17th February 2012, 09:46 PM   #4
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Hi,

The SMPS Switch Mode supplys are what i was thinking of.


Jake
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Old 17th February 2012, 09:48 PM   #5
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One of these?? -- Connexelectronic
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Old 17th February 2012, 09:52 PM   #6
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Yeah, get the SMPS800R. The supply PCB you linked to plus the price of the transformer will cost about 50% more and take up more space + HEAVY.
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Old 17th February 2012, 09:53 PM   #7
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Quote:
Originally Posted by Riddles View Post
One of these?? -- Connexelectronic
That one is a bit overkill, try this one..... Connexelectronic
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Old 17th February 2012, 10:51 PM   #8
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Quote:
Originally Posted by Riddles View Post
Hi,

The SMPS Switch Mode supplys are what i was thinking of.


Jake
A transformer, bridge and smoothing caps is much easier to fix if it goes wrong.
An SMPS has a lot to go wrong.
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Old 17th February 2012, 11:33 PM   #9
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Originally Posted by nigelwright7557 View Post
A transformer, bridge and smoothing caps is much easier to fix if it goes wrong.
An SMPS has a lot to go wrong.
That's a good point.

I don't so much mind the weight of linear as inefficiency, but I'm not clear on just what that is.

Any idea what idle and full power losses are with +/-60 V rails?

Average power is low, so I don't much care about the latter.
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Old 17th February 2012, 11:37 PM   #10
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Originally Posted by noah katz View Post
I don't so much mind the weight of linear as inefficiency, but I'm not clear on just what that is.
There is nothing inefficient about a linear supply.
A transformer is very efficient.

Its linear amplifiers that are inefficient. class AB is about 60% efficient whereas class d is 80%-90%
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