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Steven Merrifield

Senior Electronic Engineer, 30+ years commercial experience, hardware design, PCB design (CID+), FPGA and embedded firmware.

Melbourne, Australia
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13 Projects
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steven-merrifield
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This user joined on 06/10/2015.

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Scalar Network Analyser using DDS, log amplifiers and ADC.
Project Owner Contributor

Scalar Network Analyser

Steven MerrifieldSteven Merrifield

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Uses a Lattice FPGA to receive ARINC 429 avionics serial protocol and convert to USB in real time
Project Owner Contributor

ARINC 429 to USB Receiver

Steven MerrifieldSteven Merrifield

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This project uses a Lattice iCE40 Ultra FPGA (iCE5LP2k) to emulate traffic on a MIL-STD-1553 network.
Project Owner Contributor

MIL-STD-1553 Network Emulator

Steven MerrifieldSteven Merrifield

394
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An avionics synchro transmitter / receiver, including an in-built reference oscillator capable of providing a 400Hz 26V RMS (74Vpp) output.
Project Owner Contributor

Synchro Transmitter/Receiver Test Set

Steven MerrifieldSteven Merrifield

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Buck Boost DC-DC battery charger. 4.5-55V input, up to 60V output. Support for Li-Ion, Lead Acid and CC/CV multi-stage algorithms.
Project Owner Contributor

Multi-Chemistry DC-DC Battery Charger

Steven MerrifieldSteven Merrifield

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High Frequency Differential Probe, DC-100MHz, +/-15V
Project Owner Contributor

HF Differential Probe

Steven MerrifieldSteven Merrifield

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A tiny (really tiny!) msp430-native microcontroller-like processor system written in platform independent VHDL
Project Owner Contributor

The NEO430 Processor

StephanStephan

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