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I will design custom audio amplifier pcb with dual rail dual voltage supply
PCB Design,Electrical electronic engineer,embedded system expert
I am a professional PCB design engineer specializing in schematic design, multilayer PCB layout, RF circuit design, GNSS/GPS, BLE, and embedded hardware development. I deliver reliable, high-performan...
About this Gig
Hum, hiss and thermal shutdown usually come from the board, not the circuit. I design audio amplifier PCBs with clean dual-rail power so your design measures as well as it sounds.
I build Class D and Class AB amplifiers, headphone amps, preamps and DAC/output stages, together with their dual-voltage supplies (±5V to ±40V, from a single DC input or transformer).
WHAT'S INCLUDED:
- Schematic creation or review
- Dual-rail converter design: DC-DC (±V from single rail), linear post-regulation, or transformer supply layout
- Low-noise layout: star grounding, return paths, power and signal separation
- Thermal design: copper pours, heatsink and via strategy
- Speaker and power output routing for high current
- Protection: DC offset, over-current, soft start, reverse polarity
- DRC and DFM review
YOU RECEIVE:
Gerbers, BOM, pick-and-place, PDF schematic, 3D/STEP preview, source files (KiCad/Altium/EasyEDA) and layout notes.
Message me first with your amplifier type, power output, supply voltage and board size so I can confirm scope before you order.
FAQ
What amplifier types do you design?
Class D, Class AB, headphone amps, preamps and power amps, mono to multichannel.
What is a dual-rail converter?
A supply that creates positive and negative voltages (for example ±15V) from a single DC input, or from a transformer, for op-amps and audio stages.
Can you fix hum or noise on my board?
Yes. I review grounding, decoupling and return paths and deliver an improved layout.
Do you design from my schematic?
Yes, or I can create the schematic from your specs.
Do you handle mains-powered designs?
I can lay out with creepage and clearance in mind, but I don't provide safety certification.
What files do I get?
Gerber, BOM, pick-and-place, schematic PDF, STEP and native source files.
