TDA729X paralel/bridge project

[Cro maniac]

Slave input voltage

In the datasheet is written that max voltage on input pins referred to -Vs is 90V. That means that you could connect the inputs of the slave chip to +Vs (if supply voltage is less than +-45V), and you won't damage them (if the datasheet is correct).
So, connecting inputs to GND or -Vs really makes no difference.

How did you make soft start circuit ?

 

[rehanabid]

Schematics & PCB

Strato:
I downloaded the PDF files that u mentioned earlier, there is a PCB design in them, however, that is only the component side what about other side of PCB..

 

[StratoFan]

Re: Slave input voltage

In the datasheet is written that max voltage on input pins referred to -Vs is 90V. That means that you could connect the inputs of the slave chip to +Vs (if supply voltage is less than +-45V), and you won't damage them (if the datasheet is correct).
So, connecting inputs to GND or -Vs really makes no difference.

How did you make soft start circuit ?

I made this simple softstart:
http://mitglied.lycos.de/Promitheus/delay_circuit_for_toroids.htm

Yes, now I know the input voltage of the slave chips not important. I think the input stage off in this mode.