why this class D power supply no high voltage side electronic cap?

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greenamp

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Joined 2010
#1
We find this class D amp no high side EC, maybe another inovation. no output net circuit, THD good indeed?is it stable?if good , we will buy some for our wooden line
 

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#2
.... and maybe this innovation will also get copied in far-east soon ?!? ;-)

Regards

Charles

P.S. You can of course do such things - conventional PSU only have electrolytics on the secondary also ! I could imagine that the result could be quite good when combined with a clever PFC topology.
 
#3
phase_accurate said:
.... and maybe this innovation will also get copied in far-east soon ?!? ;-)

Regards

Charles

P.S. You can of course do such things - conventional PSU only have electrolytics on the secondary also ! I could imagine that the result could be quite good when combined with a clever PFC topology.
Click to expand...

Does it worth coping,no high side EC, no output net circuit,we don't know limiter inside or not.if like electronic transformer circuit(likr irs2161 etc),paste circuit here for sharing enough.no other value. we want pro amp for assembling. if it is manufacture in China ,cost will lower.
 
#5
Most probably this is a so-called single stage PFC. Technically it is flyback converter modulated so that input current closely follows input voltage.
Acceptable for low power, low cost applications, which can live with a very loose regulation but need high power factor anyway.
 
#6
darkfenriz said:
Most probably this is a so-called single stage PFC. Technically it is flyback converter modulated so that input current closely follows input voltage.
Acceptable for low power, low cost applications, which can live with a very loose regulation but need high power factor anyway.
Click to expand...

Maybe like behringer powered mixer,THD +N good or not?
 
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#7
Why don't the Chinese figure it out for themselves?

It's a shame to see a nice DIY site being used as a research and development department for communist's, that will eventually use slave labour to make a cheesy inferior product, which you will then try to sell back to us.

Boycott.

P.S. Thanks for ratting me out.

Ban me, I don't want to be member of a site that gets censored for stating facts, every word I said was true. Why are you protecting them? Freedom of speech.

This reminds me an awful lot like SOPA.
 
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