350 Watt Class D Amplifier - This is how we get to Max Power!
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- čas přidán 9. 07. 2024
- This video '350 Watt Class D Amplifier - This is how we get to Max Power!' I will take this close to the full 350 Watts into 8 ohms. I'll pull out my huge toroidal transformer to power it. #350WattClassDamplifier #IRS2092 #classdamplifier
Link to 350 Watt Amp tested without fan: • 350 Watt Class D Ampli...
Link to 350 Watt Amp tested with Omicron Lab: • 350 Watt Class D with ...
Link to Omicron Lab: www.omicron-lab.com/products/...
The link to Orchard Audio: orchardaudio.com/starkrimson-...
Links to support this channel that cost nothing extra, but help support this channel;)
Link to amplifier board: 350Watt Class D Amplifier: ebay.us/zOwlyc
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LInk to Class D Amplifier Playlist: • Class D Amplifier
Link to Part 1: How Class D Amps Work: • How Class D Amplifiers...
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Part 5: listening test: • GaN Class D Review; Li...
Part 4: Intermodulation Distortion (IMD): • GaN Class D Review Int...
Part 3: Amplifier Distortion and THD: • GaN Class D Review Dis...
Part 2: temperature rise at 150 Watts out: • GaN Class D Review Tem...
Part 1: gain/phase plot across the audio spectrum with this GaN Class D Amplifier: • GaN Class D Review Gai...
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This video series on audio amps is really interesting. Please continue with it. One can learn so much from you
Thanks so much!
@@KissAnalog Your Channel deserves more subscribers. I DIY audio amp channel could fill a gap on CZcams....
I appreciate you! Thanks for subscribing! I hope to make that part of this channel.
Hi Eddie, I really appreciate you sharing your knowledge. 👍
I really appreciate you!
Absolutely change the resistors, sure would be interested in seeing the change🙂 Appreciate your work!
Also about that big toroid, add some breadth to your channel, make some workout videos doing chest curls with that behemoth?
LOL - that's a great idea;)
Love the video . when you have time definitely swap out the resistors.. And thankyou for sharing your expertise with the world.. look forward to more videos.
Thanks, will do! I appreciate you!
I bought a couple of those amplifiers, and I don't like the layout or their design choices. So, it inspired me to build my own board that actually fits in between the fins of a TO3 type heat sink as I have a lot of those heat sinks lying around. Incidentally, I regulate all the voltages to the chip. also, I use switching power supplies to power it.
Thanks for the great feedback! I like your approach!! What voltage rails do you have? Did you change the size of caps to the VAA and VSS pins? How about the boost cap value?
Hi Eddie. Yes, I would like to see how it works by changing the resistors..
Thanks - I think I'll do it and see what improvements there might be;)
Great video! I'd love to see the difference w/the appropriately valued resistors. Did you do any distortion measurements?
Thank you - I think I'll have to do one more video with new resistors;) I did some neat measurements with my Omicron Lab: czcams.com/video/dSe7q-CANEY/video.html
Here, Eddie, your equipment bench is growing, we need to get you a bigger bench !!
Thanks Jason! Yes - I need to rebuild my bench - and make more room:)
@@KissAnalog does the wife approve tho :)
Great question!
What is the volts (51?) and amps (6?) of the switching power supply?
Love your (and mine) micsig scope! Interesting to see the PWM signal comming out from the internal gate driver to the mosfets..the better this signal rising/falling/overshots - the better the efficiency and sound quality of the amplifier. What's the carrier frequency? And is that 22mH inductor enough to filter the majority of the amplified PWM in an audio frequency sweep. Thanks for the video!
Thank you! I did a video testing this with the Omicron Lab: czcams.com/video/dSe7q-CANEY/video.html
Thanks, didn't see it from a year ago. Extremely informative video.
I’m glad you liked it.
I have this Irs2092 board, a toroidal transformer from a old jbl 15” portable Pa speaker120v c in and 3 wires out +29-0- 29 and a rectifier with 4x50v caps 3300uf and a 5th smaller 50v cap with 4posts , will this make sound or smoke .? I use tp53255s usually, with smps and I’m a total newb to liner +- dual rail, recifier stuff
Thanks for asking! If I understand correctly, I think this will work.
@@KissAnalog thanx Immm gonna sub and figure out how to buy you a utube coffee lol. Btw I watch all your videos I love ‘em. Been learning a lot appreciated Sir
Thank you so much! I appreciate you! I'd love to have you hit the subscribe button;)
Sir, please design a Class D Double Ended Power amp with at least 500W - 1000W RMS.
Thanks for asking! I do have plans to do that this year;)
Just add copper windings on your toroidal Transformer to add voltage and the size of the enamel copper wire to add current. Voltage=Windings, Current=Wire size. This will simply add the Power, hence from Ohm's Law. This is the easiest way i would suggest just for this video with your current available resources. Or make a Swtich mode power supply to make it fully Class D. Efficient to efficient as we would say. And sir, can we do it in reverse? Can we use SMPS to power Class AB power amp? Thanks.
Thanks for your feedback! You are correct about the turns ration and current sizing the wire - but also remember that a particular core can only carry so much power;)
I have done a few videos on Linear vs Switcher for Class D, and I will do the same for Class A and Class A/B with switcher soon;) czcams.com/video/kPHduHM7V1k/video.html
@@KissAnalog yes sir. I forgot before i comment that i know you know that already. That's just basic on electronics. Too excited to your channel.
How do you measure capacitor umph😂
My meter doesn’t have a scale for this !
PS thanks , great series
LOL thank you!!
I thought class D was super efficient? But I guess all that power has to go somewhere. Running at lower voltage would still yield high power, and longer life?
Thanks - and yes - close to 90% is very efficient - about double of any other amp. Also, this accounts for the low frequency switcher power supply with the losses of the rectifiers and large transformer (although this big transformer was pretty efficient too - as it is so big;)
Hi Eddie, why don't you use a SMPS?
BTW, do you plan on doing more videos on SMPS design?
Thanks - and great question! Have you seen this video where I show the SMPS with audio? czcams.com/video/RA4mokWEPUg/video.html
Yes I will do many more on SMPS - including how to design and measure;) did you see my most recent? czcams.com/video/9ANZEVwAlmQ/video.html
Also, have you seen my playlist on boost converters, and how to design them? I have 19 videos there. czcams.com/play/PLZ0_iMoMBSslyU1zakyTVBKmKnS5ZGD9o.html
@@KissAnalog Thanks for your reply, Eddie. I have seen many of your videos and I appreciate the efforts that you put on creating this content.
Since you are a specialist on SMPS, I would be interested to see some practical design of a forward converter by you.
I believe that all power amplifier hobbyists would be benefited by using your SMPS design instead of a 20Kg linear or as you say low frequency switcher power supply.
Thanks - I'll be getting back to my Audio Amp Power Supply design. Have you seen this video: czcams.com/video/BaeDq_QEIn8/video.html
What is the current through Raa & Rss?
Great question! It is typically 10mA.
@@KissAnalog Thank you; I saw that in the application notes for the amplifier. I was wondering if you had determined the current through the resistors on your amp with your supply voltage.
I am using the resistors that came with it, but I can calculate the correct ones for the voltage to get the full 350 Watts.
Let's test the THD across the audio range!
Thanks - I'll do that. I'll change resistors and try that. I did some fun measurements in this video: czcams.com/video/dSe7q-CANEY/video.html
Link to the eBay listing is broken.
Thank you! I think they sold out but here's another link: ebay.us/zOwlyc
@@KissAnalog And thank you.
@@KissAnalog Hey, this new link has the board with caps that have the break-a-way lids! MUCH better I think that the continuous lids of the caps of the unit you have. Those caps would make me nervous😒
Thanks!
Please change the Resistors
INTELLECTUAL kiss Anulog
👍
My Mentor Kiss Anulog
Have a great weekend with all your family around you
From Nick Ayivor from London England UK 🇬🇧
Ok Thank you!
1st!!!
Nice job!
Thank you!