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dinithm
08-31-2013, 04:22 PM
POWER SUPPLY

power output (230W - 270W)
driver - sg3523 SMT(PUsh and pull)
primary switching fet -(2x) IRF3205
core(EI33 PC40)
switching frequency - 100khz
pulse width 45%
working voltage - 9v-16v
output voltage - 36V regulated (unregulated 42V max @13.8v input)

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dinithm
08-31-2013, 04:35 PM
AMPLIFIER
Driver TDA7498(power s so36 package)
output power 100+100W @8ohms 36V
power supply 36V(39v max)single supply (approximately 7A max)
logic supply 3.3V 100mA OK
output-2x fullbridge

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dinithm
08-31-2013, 04:40 PM
I used screen print method to make circuit board with solder mask.

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smps_fan
08-31-2013, 05:53 PM
Great mate ! Itīs only great I love it !!! Is this project your own design ? Can a push pull inverter be made that it also works in a constant current mode ? Regards Smps_fan

dinithm
09-01-2013, 01:51 AM
thanks for reply

power supply circuit from( diysmps link)
http://www.diysmps.com/forums/showthread.php?269-12v-250w-Car-SMPS-based-off-SG3525

first
this is not pushandpull inverter
this is DC/DC converter smps pushandpull type

this circuit works const voltage mode,it can deliver 7A max,0A min
fixsed voltage DC36v

but it has voltage ripples(34,35,36,36.5,37)_-`-_-``-_

smps_fan
09-01-2013, 07:44 PM
Thank you for your answer.
I see that is a voltage mode converter youīre right. Thanks for the link. What I mean would it work, if I measure the voltage from a shunt and link that voltage over a operational amplifier to the inverting imput of the sg3525 that I also have constant current ? I want to keep that constant voltage mode but I also want to make it short circuit prove without blowing a fuse. The fuse should only blow, when the circuit fails in a critical way.

dinithm
09-02-2013, 04:06 AM
4284Ok my friend,
I'm not expert

try this ,It can control maximum output currant
4284

smps_fan
09-03-2013, 12:02 AM
Oh that looks very cool ! I will try that thank you very much ! Why I didnīt get this idea looks very simple !
I appreciate it. Many thanks my friend !

ramuji
12-21-2015, 08:16 PM
hiii dini, have you measured the switching noise around pin 9 and at pin 1 of tda74..? Is it possible for you to post the pcb drawing here?

stewin
12-26-2015, 06:03 PM
wow nice project dinithm

angellina
06-12-2016, 06:33 AM
Its cool......I liked it...... (http://www.caraudiogiants.com/shop-by-category/amplifiers/soundstream-p4-800.html)!!!!!!!!

dinithm
09-14-2016, 11:59 AM
after 3 years
I completed this

dinithm
09-14-2016, 12:07 PM
https://www.youtube.com/watch?feature=player_detailpage&v=MiC0cApv2PU
https://www.flickr.com/photos/33267726@N06/29593125311

ramuji
03-13-2017, 06:59 PM
hello dini you have done a good work. is it possible for you to load the pcb drawing?

dinithm
03-15-2017, 05:24 AM
sorry ,I forgot Eagle schemaic and PCB files

6110

but you can try
print top layer and bottom layer on PHOTO paper using LAzerprinter
then transfer it to duble side copper board torner transfer method