Jeffrey A.

I have been working mostly in BLDC controllers, power supplies, RF (LoRa, RFID, etc.), and sensor systems. I specialize in troubleshooting, design review, and Altium layout. Recent projects include: * 60V/15A power supply layout (client schematic) * 24-48V BLDC 150 to 600W (multiple designs, close cooperation with client as chipset developer) design and layout. * various cellular, wifi, and ble based sensor and control networks. * antenna consulting I have limited antenna design capability, but can assist on antenna use and selection. I have extensive firmware experience but I am not taking on firmware projects. Most of my work is not on Freelancer, so the references below are a very small subset.