Paul Roukema

Design exercise involving PCIe, DDR3, LVDS, USB and FPGA technology on a 30mm x 51mm 8-layer board

Assembling boards, the microcontroller is in a 0.5 mm pitch LQFP package.

AMB Audio Mini3, with custom input board for 2 channel input.

Custom input stage for headphone amp with AC-coupling and 2 channel mixer.

This board is the control section of a project I worked on to develop a modular bench power supply. It features an ARM Cortex-M3 CPU, USB-serial converter and a quad channel SPI interface to the power boards.

This board is the power section of a project I worked on to develop a modular bench power supply. It includes an isolated control interface and a power stage.

The UW2TT ROV I worked on after a swim.

The core electronics of the ROV laid out for debugging.

The UW2TT ROV I worked on being tested in the water for the first time.