I design electronics as complete working systems, not isolated boards. A low-noise audio PCB depends on the amplifier stage, SMPS power section, signal path, and layout all working together.
I design preamps, subwoofer amplifiers, Class AB/Class D audio boards, 4–20mA and 0–10V signal conditioning, PLC analog input circuits, and current loop designs.
I also troubleshoot dead boards, no-power faults, and unstable circuits to find the real cause. My focus is clean schematics, practical PCB layout, and manufacturing-ready files that perform reliably in real hardware.... Read more