I`m building 2 channel amplifier to my subwoofer and
have a problem with current when amplifier is off and i turn it on.
I think load current is too much for my fuses.
Transformer is toroidal 230V 2x40 1200VA
and there is 144000uF capasitance.
input fuse is 10A slow and output fuses are 10A fast.
How can i limit loadcurrent that fuses won`t burn?
Please help!
have a problem with current when amplifier is off and i turn it on.
I think load current is too much for my fuses.
Transformer is toroidal 230V 2x40 1200VA
and there is 144000uF capasitance.
input fuse is 10A slow and output fuses are 10A fast.
How can i limit loadcurrent that fuses won`t burn?
Please help!
Your description is kinda vauge. Are the output fuses for the output transistors that are burning too? If this is the case, your circuit may not be balancing when initially powered up, or not biasing properly as the voltage builds. You might take a measurement of the initial current in outputs. As for the input, 1200 VA would have a lot of surge current and as Quasi pointed out, a soft start circuit would work there.
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