Circuit Design
Complete circuit design and simulation services using industry-standard tools like LTSpice, with expertise in power electronics, RF, and mixed-signal designs.
Moving Your Electronics Project Across the Finish Line
With experience in circuit design, reverse engineering, PCB layout, firmware, testing and debugging, Drewry Electronics Design Services is dedicated to moving your electronics project across the finish line.
With a history in design, testing and validation of power electronics, avionics, RF circuitry, sensing and mixed signal designs, Drewry Electronics has the skills required to take your project from idea to manufacturable product.
Do you have a PCB project that is stalled out in the design phase? A product or system that fails to meet requirements? Drewry Electronics can step in and assist in completing your project, on your schedule.
Core Competencies
PCB Layout
Professional PCB layout and DFM validation using Altium Designer, Cadence OrCAD, and KiCad, ensuring manufacturability and optimal performance.
Firmware Development
Embedded MCU integration and firmware development in C, with automated testing and self-test functionality implementation.
Services Offered
Schematic Analysis & Review
Comprehensive schematic and circuit analysis with review for manufacturing stability and optimization. Ensure your designs are production-ready and robust.
PCB Layout Review
Professional PCB layout review for manufacturability and best practices, ensuring your boards meet industry standards and are optimized for production.
Reverse Engineering
Expert reverse engineering of undocumented or legacy hardware designs, helping you understand and improve existing systems.
Full Stack System Design
Complete system design services from requirements gathering through to manufacturing, ensuring your product meets all specifications.
Embedded Systems
Embedded MCU integration and firmware development, creating reliable and efficient embedded solutions for your products.
Mechatronics Design
Comprehensive mechatronics design including motor control, sensing, and mechanical integration for complex electromechanical systems.
Technical Proficiencies
LTSpice Simulation
Altium Designer
Cadence OrCAD
KiCad
C Firmware
Git Version Control
Python Testing
Jira Management
Power Electronics
RF Circuitry
Mixed Signal Design
Avionics Systems
Contract Process
Initial Meeting
- Determine the state of the project or hardware
- Gauge work required to complete project
- No-charge initial consultation
Contract and Statement of Work
- Determine success criteria and testing requirements
- Establish documentation requirements and deliverables
- Draft a statement of work together
- Provide initial quote for required effort
- Schedule recurring check-ins and milestones
Recurring Check-Ins
- Update customer on project progress
- Evaluate potential scope creep and design trades
- Maintain transparent communication throughout
Project Delivery
- Walk through and handoff of completed design documents
- Design journal documentation
- Complete project documentation
- Design documents for schematic and PCB
- Additional simulation files and outputs
- Final billing
About Spencer Drewry
Education & Early Experience
I graduated with a bachelor's degree in Electrical Engineering from Cal Poly University. While in university, I dedicated my time to the Cal Poly CubeSat Lab, working on micro-satellite buses and ground support hardware. I led the electrical engineering team in my last year to success with multiple successful customer payload integrations.
While in college, I supported myself with a small audio electronics repair program, expanding my skills to reverse engineering and repair of consumer audio electronics. This experience built skills in parsing large and often obfuscated schematic designs, as well as drafting schematics and systems diagrams in order to successfully repair undocumented hardware.
Professional Experience
After graduating with my degree, I joined the Electrical Engineering team at Umbra Space. Growing with the company from 20 employees to over 200, I applied my degree testing and integrating satellite electronics systems from proposal to launch. Over four years, with hardware designs operating on eight functional SAR buses, I learned quickly, growing from a Junior to a Senior Spacecraft Avionics Engineer.
My time with Umbra Space exposed me to standard industry processes, stringent testing standards, and a wealth of design and debugging knowledge. With on-time delivery of 25+ successful PCB projects, I became a core member of a small but functional Electrical engineering team. I was instrumental in the completion of a novel spacecraft avionics system, the associated firmware and test infrastructure. More recently functioning as a development engineer on a series of external products including a highly manufacturable reaction wheel, sun sensor, and power management system.
Why Drewry Electronics Design Services
I started Drewry Electronics Design Services to bring these skills to a more diverse group of companies, focused on a more diverse set of technical and team challenges. Please reach out to me if you or your company has a product requiring these services. I am happy to evaluate scope of work and possible paths to success with new customers at no charge.
Contact Information
Get in Touch
Ready to discuss your electronics project? Contact Spencer Drewry to schedule a free initial consultation.
Phone:
(206) 949-8329