hi all
i have built an amp around the TAS5630B which works fine and have good sound quality..
for added safety for the speakers and to suppress popping noises i put an output relais on the board.
when i switch on, the following sequenz is done (+50V are already applied)
1) reset is opened, (square wave) amp is starting
2) audio signal is switched on
3) output relay is switched on
between these steps is always about 500msecs
switching off is done simultaneously
my qestion now: when i switch off under heavy load(loud music) can the inductance of the speaker create a voltage spike over the relay contacts-and possibly destroy the TAS5630B?
if so, i will implement a power down sequence, eg. reset close and audio off, after 100msec open the speaker protection relay
please chime in
thank you
Reini
i have built an amp around the TAS5630B which works fine and have good sound quality..
for added safety for the speakers and to suppress popping noises i put an output relais on the board.
when i switch on, the following sequenz is done (+50V are already applied)
1) reset is opened, (square wave) amp is starting
2) audio signal is switched on
3) output relay is switched on
between these steps is always about 500msecs
switching off is done simultaneously
my qestion now: when i switch off under heavy load(loud music) can the inductance of the speaker create a voltage spike over the relay contacts-and possibly destroy the TAS5630B?
if so, i will implement a power down sequence, eg. reset close and audio off, after 100msec open the speaker protection relay
please chime in
thank you
Reini
Last edited: