Thinking of, that the TPA3116/3118/3132 all got the same internal core, i'd point to another mute-delay-circuit with fast mute on power off.
It is calculated for PVCC=8V minimum. If you rise your minimum allowed PVCC, timing constants can be decreased, i.e. setting a lower margin for Vh.
This circuit doesn't use the mute-pin at all.
It is calculated for PVCC=8V minimum. If you rise your minimum allowed PVCC, timing constants can be decreased, i.e. setting a lower margin for Vh.
This circuit doesn't use the mute-pin at all.
Attachments
R4 could be as low as 800Ohm within the current setup to maintain <=5mA sinking current into FAULTZ at a fault event.
Well, shorting a biased input (or everything else) to GND is always no good idea.
For single-ended (unbalanced input) inputs, one of the inputs (usually negative) is connected to an input cap which is connected to GND. If that cap goes bad and is internally shorted, it goes to GND and that is how you can end up with intermittent popping due to auto shutdown/tuen on/shutdown sequence...
Well, the sequence is something to investigate, as there are muting delays implemented by Ti. Of course, they run out of time because those ridiculous big input caps. (4uF+)
But for the rest, I'm with you.
But for the rest, I'm with you.
imgur: the simple image sharer
Hi, I almost pulled the trigger on the Samsung PSU, but I didn't want to buy 3 of them :/ I kept on searching and found a mfg that makes a very high quality 24V 5A switching PSU for medical devices. I had them debug the S-PSU from 150mv to 75mv. Its well built with zero noise. The difference in sound quality and performance between the 14v 10a linear PSU vs 24V 5A is unquestionable. And the switching PSU is 1/3rd of the price of the linear and much smaller.imgur: the simple image sharer
Hi, I almost pulled the trigger on the Samsung PSU, but I didn't want to buy 3 of them :/ I kept on searching and found a mfg that makes a very high quality 24V 5A switching PSU for medical devices. I had them debug the S-PSU from 150mv to 75mv. Its well built with zero noise. The difference in sound quality and performance between the 14v 10a linear PSU vs 24V 5A is unquestionable. And the switching PSU is 1/3rd of the price of the linear and much smaller.imgur: the simple image sharer
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If overcurrent protection switches 3116chip off and on again here that off/on is without any noise/pop, even with 10uF inputcaps, trying to start with bad bootstrap or bad contact gave repeating pop and also bad 1nF cap in output gave a repeating pop here. Can't remember clearly other defects and pop or not.
Assumption here is ampprotection shutdown/restart introduces POP, and added is inputcapacitor value could be to blame. I share ampprotection tripping doesn't involve any noise, not on shutdown nor on restart again, it really is just SDZ pulled low by Faultz pin, not theoretical noisefree but real experienced noisefree. BTL 3116 switches off when connected to my electrostatic low low impedance speakers when volumelevel gets high and sourcematerial has highfrequency content, it can do so 30 times in a row or just once depending on source and volumelevel, never any noise. So my story is ampprotection is popnoisefree, just my story🙂
Did you all know that Parts Express now sells YJ Blue Black?
Yuan-Jing TPA3116 Class D Amplifier Board 50W+50W
Danzz board is now a household name in the US Diy market.
Yuan-Jing TPA3116 Class D Amplifier Board 50W+50W
Danzz board is now a household name in the US Diy market.
I have four of these and really like them. They sound fine to me and you can't beat the price of $4 to $6
Amazon.com: 90W 19.5V 4.7A NEW Laptop/Notebook AC Adapter/Battery Charger Power Supply Cord for Sony Vaio Vgn-bx Vgn-bz Vgn-cr Vgn-cs Vgn-cs1 Vgn-c2s Vgn-cs3 Vgn-fs Vgn-z Vgn-fe Vgn-fj Vgn-fw Vgn-nw Vgn-nr Vgn-ns Vgn-sz Vgn-sr Vgn-n Vgn-c Vgn-e Vgn-c
http://www.amazon.com/gp/aw/d/B005J963W6/ref=pd_aw_sbs_1?pi=SS115&simLd=1
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Yeah! Now they are in bed with YJ, yet they have a long relationship with Sure, and decide to NOT carry the new TPA 3110, and TPA3116 Sure boards??
Wondering if the Coilcraft XAL1510 series inductors would have any value for tpa3116 applications?
Pros: high current, fairly small, low DCR.
Cons: Expensive, L vs Current is not flat (like SER2900-series), but maybe not too steep a drop-off?
If you go back in this thread a few days to around post #6004 (Dec 4), we can conclude that it's unlikely most people will ever put over 9 amps through their inductors in BTL mode.
So, at 9 Amps, the 10uH XAL1510 derates to about 9 uH.
The 22uH drops to about 18uH at 9 amps, but then again, people using 22uH inductors probably have higher impedance speakers, and likely won't get near 9 amps.
Thoughts?
Pros: high current, fairly small, low DCR.
Cons: Expensive, L vs Current is not flat (like SER2900-series), but maybe not too steep a drop-off?
If you go back in this thread a few days to around post #6004 (Dec 4), we can conclude that it's unlikely most people will ever put over 9 amps through their inductors in BTL mode.
So, at 9 Amps, the 10uH XAL1510 derates to about 9 uH.
The 22uH drops to about 18uH at 9 amps, but then again, people using 22uH inductors probably have higher impedance speakers, and likely won't get near 9 amps.
Thoughts?
I just looked at my extra laptop psu I have laying around, and what do u know, 20v 90watt 🙂
Ill do a shoot out with this 20v and compare to the 24v.
http://i.imgur.com/ppuBxeV.jpg
Ill do a shoot out with this 20v and compare to the 24v.
http://i.imgur.com/ppuBxeV.jpg
You guys comparing PSUs... 
Why not just get a decent quality power brick that won't blow up? Perhaps then use a differential filter on the output, and it'll sound as good as any other. You can't judge PSUs by the "sound quality", that's complete and utter bollocks.
A good PSU will have a clean output, and will be able to provide the current you need. End of...
Why not just get a decent quality power brick that won't blow up? Perhaps then use a differential filter on the output, and it'll sound as good as any other. You can't judge PSUs by the "sound quality", that's complete and utter bollocks.
A good PSU will have a clean output, and will be able to provide the current you need. End of...
Oh, switching PSUs (especially when light loaded) can create all sorts of trash on their output. Laptop supplies in particular are designed for efficiency/price, not for a highly filtered output - the laptop in turn knocks down the 19V (or whatever) and cleans it up at that point if it has to.You guys comparing PSUs...
Why not just get a decent quality power brick that won't blow up? Perhaps then use a differential filter on the output, and it'll sound as good as any other. You can't judge PSUs by the "sound quality", that's complete and utter bollocks.
A good PSU will have a clean output, and will be able to provide the current you need. End of...
I've used them to power test equipment and whatever, I commonly see them do things like cycle on/off under light loading, sending chirps into the load.
... Which is exactly what I'm getting at. It just seems to me that people are comparing PSUs for apparent sound quality, as opposed to measuring them and conducting "real" tests.