Inrush current limiter?
My amp have a 500VA transformer and I want to make a current limiter, because the fuse in my living room is sometimes broken when I switch the amp ON.
What will be the best of these two:
or just a CL-60 in series with the transformer?
I have read many thread but I'am little confused, so I will be very happy for any suggestions.
Depends on what you want. A CL-60 in-line with a primary lead will work fine, just don't do an off-on rapid sequence or you won't have any inrush protection.
Also if your amp is AB rather than class A you might find the CL-60 does not drop all the way down to its minimum resistance due to low average current draw.
The project 39 is good too, I implemented that with a CL-60 instead of a resistor. More complicated but pretty good protection.
if your power supply has a habit of dropping out for more than a few cycles then I would use a relay shorting resistor or resistor+cl60.
In any case use a relay to short out the thermistor and properly connect the amp to the supply.
The advantage of having a relay and a resistor is much shorter reset time.
From what I know there are at least 5 different solutions out there ready made and bare pcb's.
OK, I will make project 39 and implemente a CL-60 instead of a resistor.
Thanks for the replys.
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