IRS2092 Class-D Amplifier

[Riddles]

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

 

[nigelwright7557]

I would go for two 750VA transformers or a single 1500VA transformer.

 

[noah katz]

I'd get one of the excellent Connexectronic SMPS, cheaper (I think) and more efficient.

 

[Riddles]

Hi,

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


Jake

 

[Riddles]

One of these?? -- Connexelectronic

 

[theAnonymous1]

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.

 

[theAnonymous1]

One of these?? -- Connexelectronic

That one is a bit overkill, try this one..... Connexelectronic

 

[nigelwright7557]

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.

 

[noah katz]

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.

 

[nigelwright7557]

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%

 

[noah katz]

Interesting, thanks.