Hello everyone. I'm a ee student from turkey. I bought a pioneer ts-w310 4 ohms subwoofer and i want to build an amp for it. I'll build power amp on a pcb first, make it work, and than i'll build a seperate active low-pass filter on another PCB to add to it. I'll use a 60w 2x24v transformer to make a split supply stage, so thats my total power. I'm planning to use TDA2040 or TDA 2050 in a bridge design, please find circuit in attachment. So:
-I'll probably use lm7818's and lm7918's in parallel for supply regulation. Do you think making a regulator with bjt's and zeners worth the time to make it because of voltage boost?
-Which IC should i use for this? 2040 or 2050? I couldn't find info about low freq responses on neither datasheet. And didn't understand what it meant by "Power Bandwith = 100Hz" on 2040 datasheet. 2050 says BW is 20 Hz to 22 kHz which is good i assume. Can you please take a look at them and tell me which is more suitable and why? My priority is power. (TDA2050 has short circuit protection, which could be useful on trials)
-What size of a heatsink would i need? Datasheet says 13w max Pd for each IC so 26 w total. I'm thinking passive cooling.
Also i'm open for ic suggestions, if you know a more suitable ic for this job that doesn't need too complex external circuitry, please tell.
Thank you for your time and have a nice day
TDA2040: https://www.pollin.de/shop/downloads/D100014D.PDF
TDA2050: http://www.st.com/content/ccc/resou...df/jcr:content/translations/en.CD00000131.pdf
-I'll probably use lm7818's and lm7918's in parallel for supply regulation. Do you think making a regulator with bjt's and zeners worth the time to make it because of voltage boost?
-Which IC should i use for this? 2040 or 2050? I couldn't find info about low freq responses on neither datasheet. And didn't understand what it meant by "Power Bandwith = 100Hz" on 2040 datasheet. 2050 says BW is 20 Hz to 22 kHz which is good i assume. Can you please take a look at them and tell me which is more suitable and why? My priority is power. (TDA2050 has short circuit protection, which could be useful on trials)
-What size of a heatsink would i need? Datasheet says 13w max Pd for each IC so 26 w total. I'm thinking passive cooling.
Also i'm open for ic suggestions, if you know a more suitable ic for this job that doesn't need too complex external circuitry, please tell.
Thank you for your time and have a nice day
TDA2040: https://www.pollin.de/shop/downloads/D100014D.PDF
TDA2050: http://www.st.com/content/ccc/resou...df/jcr:content/translations/en.CD00000131.pdf
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