You would likely be better to use two separate boards. Otherwise you would need to connect both amplifier grounds together for DC detection, leaving you open to ground loops. You can populate one speaker relay on each board. That's the most expensive part of the board.
I've got a basic design almost ready to prototype of isolated speaker protection circuits. This would be perfect for dual monoblock designs.
That was my concern, then two boards it is. Glad I have a big chassis.
So if I want to use only the speaker in/out below Q10, I leave Q1, Q9, I2 and R4 and R6 unpopulated?
Im looking forward to play with these boards. I'm currently offshore but I brought with me an Ardunio Uno to play so that I can play with the software part. 😉
So if I want to use only the speaker in/out below Q10, I leave Q1, Q9, I2 and R4 and R6 unpopulated?
Im looking forward to play with these boards. I'm currently offshore but I brought with me an Ardunio Uno to play so that I can play with the software part. 😉
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I've been finding a lot of uses for the Arduino platform. Hopefully in a couple months I'll have software writing down. It's starting to get easier. Here's a lighthouse beacon I've been building for a guys cottage. Remote control rotation speed, brightness and output pattern selection.
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Hi guys, a question regard 12VDC relays. I have a bunch of relays rated 10A 277VAC which i intend to use for the soft start . Would they be alright?. My transformer is 800VA.
Quan
Quan
Here is a board for use with those relays.
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Way faster than a 10A fuse will blow.
Same with DC , a couple mm woofer movement .... "eye burning" red
flashing LED.
Flawless (just about idiot-proof).
OS
Quan pitty your not local to me. I could show how to home etch.
Relays should be ok.
800VA/220V=3.6 amps divide by .8 fpr power factor and double it for safety at switch on, gives you 9 amps.
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Relays should be ok.
800VA/220V=3.6 amps divide by .8 fpr power factor and double it for safety at switch on, gives you 9 amps.
Sent from my GT-I9505 using Tapatalk
Shouldn't be too tough to do on a vero-board. I could also provide gerbers if someone wants to order some. Should be very inexpensive.
The board or 48mm x 48.5mm.
we could fit 4 of them on one 10cm x 10cm board and get in under the prototype discount. I'm not sure what they charge for score lines but that would be a really cheap way to do it. I was able to put 6 of them on a 4" X 6" board. These should work well in a tight chassis when using a reasonable sized PSU.
