Hello Friends, In this post, I make a 30A speaker protector, you can use this speaker protector for up to 4000W amplifiers. This speaker protector has protection and an active Led, so you can easily understand whether your amplifier is in fault condition or normal condition. This circuit is powered by 12 volts. If this circuit is connected to the amplifier output, and if the transistor burns out, this circuit will not allow current to flow through the speaker. For designing my PCB, I used EasyEda online software. Then I export the Gerber file (which you can download). And then I go to PCBWay for manufacturing my PCB. PCBWay are the largest PCB manufacturer in China. They offer Standard PCB, Advanced PCB, Rigid-Flex PCB, SMD-Stencil and PCB Assembly Service. Here you get, 100x100mm 2 Layer PCB only at $5, And processing time within 24 hours. And they distribute, worldwide. The more you order, the less price you have to pay.
You must upload the Gerber File and select the quantity, color, silkscreen, thickness, etc. Then choose your country, and shipping method, and then Pay. PCBWay will deliver your PCB within 7-10 days.
After one week I received my PCB. You can see the PCB quality, it's awesome. I ordered Purple PCB. But you can choose your PCB color. PCBWay provides 9 color solder masks - Green, Blue, Red, Purple, Black, White, Yellow, Matte Black, and Matte Green. On PCBWay you can get 100x100mm 2 Layer PCB only at $5. Maximum size PCB you can get 500x1100mm. The maximum Layer is up to 14 Layers. If you order PCB for the first time at PCBWay, you get a $5 discount coupon. So upload your Gerber today and get the best quality PCB.
Gerber File:- Gerber
PCB Layout & Schematic:- PDF
License:- ©Technical Mriganka. You can't use this PCB Layout and Gerber File for commercial purpose. You can use this PCB layout and Gerber file only for Educational and DIY projects.
Power Supply:- Recommended 0-12VDC, 0.5A-1A.
Test: After complete this speaker protection, touch the input terminal with a voltage wire, if the relay cutout the supply then the speaker protection is working properly.
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