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How I setup for testing the TPA3255 Class D Amplifier 300W + 300W

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In this video 'How I setup for testing the TPA3255 Class D Amplifier 300W + 300W, I will show the testing that I do on this TPA3255 Class D amplifier that is rated 300W +, 300 Watts. #TPA3255 #ClassD #classdamplifier #quantAslyum
Link to TPA3255 Amp board: amzn.to/3zVBt65
Link to GW Instek MDO-2204-EG: amzn.to/3Vo6UzW
Link to ICEpower 125ASX2: amzn.to/3Taksx5
Link to ICEpower 125ASX2 (lower cost): ebay.us/NPZUWK
Link to Power Supply (looks better than the one I have): amzn.to/3pgfQsp
Link to box for Class D amp project: ebay.us/ETpmJx
Link to T-Shirts and more: www.redbubble.c...
Please use links that cost nothing extra but will help support the channel:
TPA3255 Power Amplifier board: amzn.to/3LgRZTl
GW Instek 4 channel MDO Oscilloscope: amzn.to/3rvY7PK
MicSig Oscilloscope: amzn.to/3B4DcXe
MicSig Differential Scope Probe: amzn.to/3HvRG4A
Pico Oscilloscope: amzn.to/35UytvC
IR Thermal Camera: amzn.to/3J92LJu
Silicone Blue work mat: amzn.to/37a9txL
Kaiweets Store (using this link will help support this channel): kaiweets.com/c...
Other videos that might be of interest:
EEVblog Comments on Fluke Rant: • Capacitor Types in SPI...
Fluke Rant - Are they over priced? • Fluke Rant - are they ...
Fluke Rant - Better Test Leads Please; • Fluke Rant - Better Te...
Fluke TPAK Hanging meter Kit $42 or $10; magnetic hanger comparison: • Fluke TPAK Hanging met...
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The Iconic Fluke 87V: • The Iconic FLUKE 87 wi...
Fluke 27 Exposed and giveaway: • Fluke 27 Exposed and G...
Please support this channel that will not cost anything extra by using my link to Borbede BD-99, this meter is around $47 which is low cost for a high count meter with high accuracy:
amzn.to/3DRgUbZ
Links to support this channel that cost nothing extra;)
Fluke 87V link: amzn.to/3l4QUCq
Hioki 4256 multimeter: amzn.to/3idmexS I’ll show the enclosure that I plan to use for this project. I’ll also show the options for a pre-amplifier.
Link to TPA3255 Amp board: amzn.to/3zVBt65
Link to Power Supply (looks better than the one I have): amzn.to/3pgfQsp
Link to box for Class D amp project: ebay.us/ETpmJx
Link to T-Shirts and more: www.redbubble.c...
Please use links that cost nothing extra but will help support the channel:
TPA3255 Power Amplifier board: amzn.to/3LgRZTl
GW Instek 4 channel MDO Oscilloscope: amzn.to/3rvY7PK
MicSig Oscilloscope: amzn.to/3B4DcXe
MicSig Differential Scope Probe: amzn.to/3HvRG4A
Pico Oscilloscope: amzn.to/35UytvC
IR Thermal Camera: amzn.to/3J92LJu
Silicone Blue work mat: amzn.to/37a9txL
Kaiweets Store (using this link will help support this channel): kaiweets.com/c...
Other videos that might be of interest:
EEVblog Comments on Fluke Rant: • Capacitor Types in SPI...
Fluke Rant - Are they over priced? • Fluke Rant - are they ...
Fluke Rant - Better Test Leads Please; • Fluke Rant - Better Te...
Fluke TPAK Hanging meter Kit $42 or $10; magnetic hanger comparison: • Fluke TPAK Hanging met...
EEVblog is Santa Claus - Thanks Dave!!: • EEVblog is Santa Claus...
EEVblog comments;) Fluke Rant - are they Over Priced?: • EEVblog comments;) Fl...
The Iconic Fluke 87V: • The Iconic FLUKE 87 wi...
Fluke 27 Exposed and giveaway: • Fluke 27 Exposed and G...
Please support this channel that will not cost anything extra by using my link to Borbede BD-99, this meter is around $47 which is low cost for a high count meter with high accuracy:
amzn.to/3DRgUbZ
Links to support this channel that cost nothing extra;)
Fluke 87V link: amzn.to/3l4QUCq
Hioki 4256 multimeter: amzn.to/3idmexS

Опубликовано:

29 авг 2024

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Комментарии : 39

@rajendrabareto8065 8 месяцев назад

I bought one and hooked it to 36V 15A smps.very good sound.my smps goes off of if I power on with the amp. It works fine if I use a switch to connect the amp after smps power on. Very clear output. Feels like about 150 amps per channel with 36 V.

@KissAnalog 5 месяцев назад

Thanks for this feedback! If the amp is trying to amplify a signal when it is turned on - it will be asking for a certain amount of power. When a switching power supply turns on - it is trying to provide that 'constant power' but as the input voltage is coming up - that is a bunch of current. So, it is better to let the power supply come up - so that it can provide that constant power and not over current;)

@christiancarassai9540 Год назад

You end doing what we want to do and have no time. You are stealing all our funny tasks😂 great video!!!

@KissAnalog Год назад

LOL thank you!

@joepalovick1915 Год назад

Thanks Eddie! Appreciate the detail.

@KissAnalog Год назад

You bet! Thanks for the feedback!

@MarcelHuguenin Год назад

Thanks Eddie, looking forward also to Part II of this test.

@KissAnalog Год назад

Thank you - should be out tomorrow morning;)

@always_broke_LOL Год назад

Thanks!

@KissAnalog Год назад

Thanks so much for your generosity!!

@AstroPanos Год назад

Great Video Eddie! I am new to electronics and I am learning a lot from your valuable videos. Many thanks for all your effort and time you spend and the knowledge you share with us!

@KissAnalog Год назад

Thanks so much! Great to have you here!

@ats89117 Год назад

Nice video. Most of your viewers are probably asking "Who is Jimmy Buffet?" Anyway, it was a little surprising to see the phase shift between the two outputs, but it's consistent with +/-20% capacitors and inductors. Good to know for those of us using these amplifiers for other applications!

@KissAnalog Год назад

LOL - thanks so much! Jimmy was my roommate's favorite when I was in the AirForce.

@versace885 Год назад

HI Eddie, I really appreciate you doing a thorough informative video and making it interesting and fun. 😆

@KissAnalog Год назад

So nice of you

@AstroPanos Год назад

Thanks

@KissAnalog Год назад

Thanks so much for your generosity!

@scaudioav Год назад

Great video. Digging the Buffett shirt. It makes me feel a bit thirsty everytime I see that name

@KissAnalog Год назад

LOL I love it!

@jim9930 Год назад

Eddie, build yourself a little notch filter to attenuate the switching freq of class D. 1000ohm from amplifier output and .33mH - 365pf (am radio tuning cap) series notch to probe ground. Those values will tune around 500kHz ~Q=1. Extra 20-30dB loss with a wide enough null to accommodate a few percent shift in frequency under load. Does the 403 have analog lowpass filters on it's inputs ? If not, the switching freq. of the class D and the analyzer's sampling freq. will mix and cause intermod that probably will drop back into audio band. edit: AES17 is the filter spec for measuring class D amps. Don't quote me, 22kHz 'brick wall' 18 or 24dB/oct with some notches(?). It was written at a time when 100kHz was fast for class D, so not always necessary with modern designs. A simple RLC usually is sufficient; worst case a 12dB/oct lowpass and an RLC notch.... Okawa Electric Design has a nice RLC notch simulator online; and other filters. Stock LC on the amplifier is NEVER sufficient !

@Hellhound604 Год назад

Hi Eddie. I cannot remember if you have a video explaining why you have to use differential probes for these bridge amplifiers. Maybe for noobs, you could draw a block diagram, showing how the output of a bridge configuration-amp works, and why you need to test the ouput differentially. Not meant as criticism, but I thought a lot of beginners might find it useful.

@KissAnalog Год назад

Thanks so much! I have done that once, but I need to do a short video on this that I can point to for each video in the future on this subject. Thank you!

@andymouse Год назад

High effort video and this needs to be done but would like to see some actual measurements with your new toy ! Why do we need to know about the power supply have I missed a bit please ? as only one device under test at one time ! I would like to know why you need 2 differential probes it would be easier to test 1 channel at a time and do both under load at the end..I guess ? Good work but signal in and amp on then connect to the analyser and from there it's all software is that right please ?...cheers.

@KissAnalog Год назад

Thanks for your feedback! I use two sets of probes on the outputs so I can watch them both at the same time to be sure there’s not a problem. I don’t want things blowing up:). Once I setup the QuantAsylum up with the right parameters the software does the rest. I want to be sure that the power supply is good so it doesn’t hurt the amp with too high of voltage for instance.

@jochenburkart8902 Год назад

What I think? Each time I switch on one of your videos, I think you look a bit like James Hetfield ... ;) . On topic: you're doing great, much for me to learn.

@KissAnalog Год назад

LOL thanks so much for your feedback!

@TRONMAGNUM2099 Год назад

I think you have all the gear now to be very thorough. Interesting phase shift. Can't say I have seen that before. Maybe troubleshoot it more? One thing I would like is more standardized testing. That way I have some known parameters to compare against previous products. Maybe give your assessment on the amp or psu at the end of the video of things you liked and didn't like or things you think that could be improved especially from the engineering design side of things.

@KissAnalog Год назад

Thank you - and I agree - standard set of tests would be great! I tried to follow your suggestion in the video I just posted:)

@johnsonlam Год назад

It's fun to learn the amplifier have phase shift, maybe recommendation of each amp., how good are they? Worth to buy or not? Thank you for setting up bunch of things to test.

@KissAnalog Год назад

Thanks so much! I have a new video coming out. I will show a set of tests for each amp I test.

@always_broke_LOL Год назад

I’m having a bit of issue with my scope 10x / 1x probe picking up noise which interferes with measuring small signals such as 10mv p-p . What did you do for this problem if you have had it happen to you? Please help thanks

@tibipoka6467 9 месяцев назад

Hi, from 2x50v dc can i use it in bridge mode, (I need around 400w at 8r for a active speaker )

@microknigh7 Год назад

Interesting phase difference. What mode are the amps you're testing running in? We're currently waiting for prototype PCBs, where we're using the 3255 in a single channel PBTL mode for a 150W PA. The amp is mostly reference design with custom output filtering, plus we use 100V line. So there's an output transformer. But wondering how that phase difference might impact the efficiency when paralleled.