Hello my friends.
Is there anyone who can help me to design a pcb of boost converter from 12v to 48-50v for tpa3255 class d amplifier chip.
Is there anyone who can help me to design a pcb of boost converter from 12v to 48-50v for tpa3255 class d amplifier chip.
No because it will draw 80+ Amps from the 12V supply. That's starter motor current requiring welder cables, not a PCB.
I am not qualified to work at such high currents.
Perhaps you could post your design so far and others better qualified than me may help you to continue with your design.
I am not qualified to work at such high currents.
Perhaps you could post your design so far and others better qualified than me may help you to continue with your design.
Look for a proper cheap second hand car amplifier with separate PSU and AMP boards and take just the PSU board.
Single phase 200w converter circuit (300w peak) for сar audio.
By the way, in order not to "reinvent the wheel", it is better to look at the demoboard from TI, there is a schematic of a car amplifier with a boost converter and tpa3255, including a drawing of the board.
By the way, in order not to "reinvent the wheel", it is better to look at the demoboard from TI, there is a schematic of a car amplifier with a boost converter and tpa3255, including a drawing of the board.
Attachments
I would still use a SG3525A, TL494A and just have it run x4 fets. and get the same outcome. The price for that chip and the part count is just unnecessary. What is the gain using a boost stage at this power level ? 300W.
No a "boost converter".
Not at such a high voltage step up nor such a high power.
You need a straight 12V to 48-50V DC to DC converter, period.
Emphasis on the word "boost" which does not apply here.
Going by your other threads about wanting silly big amplifiers for 'automotive' use.
Why not just buy a class d car audio amp of whatever power output you need and be done with it.
You can get them to several KW output very cheaply.
It will all be in one simple small case ready to connect to 12vdc and run.
Why not just buy a class d car audio amp of whatever power output you need and be done with it.
You can get them to several KW output very cheaply.
It will all be in one simple small case ready to connect to 12vdc and run.
UserAbuser i want in 100s pieces not a single piece bro. I just need an working schematic if anyone have or if anyone can design the pcb. I have ordered 200 pcs of tpa 3255 boards from China. We make amplifiers for tractors, bus, and trucks. I know all the things about car amp but they are very pricey.
You should make clear your application is for a commercial product.
Contributors may want recompense for designing your product and there may be liability issues.
I'm still not clear what help you require since you have not given your input yet, unless you mean you want someone to design it for you, bro?
Contributors may want recompense for designing your product and there may be liability issues.
I'm still not clear what help you require since you have not given your input yet, unless you mean you want someone to design it for you, bro?
I guess a ready made reliable commercial product is far more expensive than the time and effort required to research, design, source components, have boards and cases manufactured, assemble it all into a case, then test and warranty the assembly.
Obviously no one would give a decent break discount of several hundred units.
Good luck Bro.
Obviously no one would give a decent break discount of several hundred units.
Good luck Bro.
Overall - the idea of separating the boards into power supply and amplifier in car audio is a very bad idea.
You will need to add a remote control circuit, and all sorts of protection, click suppressors. Apparently, you didn't think about it at all, and your project still needs a lot of improvements.
You will need to add a remote control circuit, and all sorts of protection, click suppressors. Apparently, you didn't think about it at all, and your project still needs a lot of improvements.