Oliver
Krause

Designed, built, and field-tested five generations of a 7 kWh / 10 kW portable battery system from initial concept through production-intent hardware, culminating in a fleet of twelve units deployed commercially across film productions, live events, and a ~$100K municipal contract. Responsibilities spanned electrical architecture, custom copper power distribution, firmware, mechanical enclosure design, and supply chain development across domestic and overseas manufacturers.

Led start to finish mechanical design of a 2 MW peak-discharge battery (containerized in a 20 ft shipping container for mobile tow testing) for hydrogen-electric aircraft development: designed 49 CFR Part 393 shock-rated LiFePO4 module racking, developed a full-system thermal model validating safe operation at edge-case loads, specified HVAC requirements, explosion vents, lithium fire suppression, and produced ANSI drawings that put construction underway. Battery was completed shortly after my internship and saw one year of service before the company relocated and the system was retired.

Designed an 8-layer impedance-controlled compute board from scratch for an autonomous agricultural robot fleet, integrating an NXP SOM alongside LTE, NVMe, USB 3, MIPI, and PCIe hardware. Revised power subsystem schematics (budgeting, buck/LDO, load switches) and executed full ground-up layout; boards are in active service across the client's commercial fleet.

The Control Node is the embedded brain of all Fieldpack battery systems, built around an ESP32-S3 with a fully isolated architecture including isolated CAN and RS-485 transceivers, isolated load switches, and an isolated buck power supply module. The board polls all connected device registers, compares their values against a configuration table, automatically corrects any misconfiguration, and dynamically controls inverter on/off state to minimize standby power consumption ensuring the system behaves correctly even after a power cycle or fault event. All device data is logged to per-device CSV files on an SD card, organized by day, every ten seconds. The board also integrates an IMU, real-time clock, and 915 MHz LoRa radio with impedance-controlled antenna trace for remote monitoring and future mesh networking between units.