Calvert Wong Email & Phone Number

Costa Mesa, Ca, Us

supply chain, component support for high power amplifier Q-SYS products

Layout for miniature medical devices (higher density and flex cable construction). Support RF PCB antenna and assembly testpoint coverage strategy. Setup/generation templates for release, SVN, project management, and standard work.ACCOMPLISHMENTS:• Project setup for both A365 Git and on-prem SVN repository and part library migration.• Standard work documentation on Microsoft Loop and SharePoint for ease of integration into PLM

Huntington Beach, California, Us

Design and test integration for public rail transportation small autonomous vehicle electrical systems using match impedance isolated differential CAN bus, High Voltage (800V) water-cooled motor controller inverters, axial flux e-motors, and safety critical interlock system STO servo motor architectures.ACCOMPLISHMENTS:• Commissioned 200kW (800VDC) test fixture for resolver calibration, inner torque mode, and speed propulsion checks with low-level CAN programming and command verification prior to integration.• Designed high power vehicle schematic and cable harnesses and LRUs- High Voltage and Low Voltage busbar/switchgear Power Distribution Units for rail transfer switching, trip coordination, and servo motion controlled interlocks and proximity detection.• Upgraded development PCBs or embedded functional safe ECUs with KiCad and Altium 365.

Irvine, California, Us

Developed LED and landscape lighting power supplies for low cost, offshore procurement and mfr.Supported DFM on new designs while responsible for legacy power supply products. Addressed substitute part program, obsolescence, and verification of alternate components. Planned and performed compliance testing for new power supply drivers and transformers to UL 5085, UL 8750, IP6X. Tested performance of competing power supplies and accessories for Wi-Fi and LoRa.ACCOMPLISHMENTS• Kept supply chain component part shortage impact to minimal.• Extensive prototype bring-up, rework and testing for performance and verification of designs• Develop new automatic go/no-go test fixture for production acceptance.

Designed electronics for water heater tanks, solenoid valve, mixers, and door strikes. Technical and Systems electrical support on development programs and sustaining products- display panels, keypad, touchless IR devices and their test fixtures. R&D for low power PWM relay driver.ACCOMPLISHMENTS• Prototype board bring-up of water power supply and heater driver boards.• Reverse engineer competing gray water system.

East Aurora, Ny, Us

Ballard, Inflight Warning Systems, Electrical Engineer for team developing next gen in-flight motor vibration detector on an embedded (ARM Cortex BeagleBone Linux SOC with Wi-Fi and Ethernet connectivity.ACCOMPLISHMENTS• Support legacy PCBAs on EAGLE and design of new products using SOLIDWORKS PCB (Altium).• Established IPC compliant 3D component library and standard work with SVN to integrate with existing PLM (SWPDMP).• Developed MEMS accelerometer technology for health monitoring of fan and pump bearings.

Buena Park, Ca, Us

Project Lead/designer for new development research on 3Ø AC & DC power metering devices using embedded microcontroller (ARM M4) based hardware, high-speed (50kHz) data acquisition, CAN bus, and RMS 3Ø current and voltage, temperature, power quality algorithms (sensing instrumentation, current transducers, hall-effect, RTD)ACCOMPLISHMENTS• Designed and demonstrated working prototype at half of projected costs- saving $250k• Guided custom CAN bus IP retaining ARINC 826 compatibility for use in other projectsProject Lead for regional jet electrical power distribution protection equipment (6+ team) and various switchgear, contactors, and solid-state relays (SSRs) with MOSFET technology. Main customer interface coordinating requirements from sales and marketing to technical design. Interpret, decompose, and allocate to internal subsystems- especially to design and comply with MIL-STD-704, MIL-W-5088, and connector, wire & cable specification. Author equipment specifications and assign compliance methods. Validated and check coverage. Write QBS QBAs and verification procedures. Direct and manage HRD, SRD, MICD, EICD, Qualification, ATP, ESS. Provide final DDP. Instrumental in implementing DOORS and GEMINI collaborative processes, procedures and policies. Specialist for failure analysis investigations/reports, electrical systems applications, and field support.ACCOMPLISHMENTS• Main contributor for DO-178 software verification activity that lead to DO-178B DAL A and C certification primarily due to successful soft IP re-use using math table/coefficient trip curve algorithm • Design guide methodology for busbar & voltage-drop screening• Lead design of semi¬automatic manufacturing and generic acceptance test hardware and software with full tool qual, mfr screening data recording, archiving/retrieval for multiple LRUs

London, Gb

Performed system integration for high voltage (≥600VDC) hybrid electric-diesel ground vehicle using developer tools (GUIs) to build, integrate, and verify various subsystems (LRU parametric and thermal performance with selected generator power output and load conditions). Built special remote instrumented test equipment with custom LAN Wi-Fi tools for field track diagnostics and isolate faults on GbE/ CAN interfaces.ACCOMPLISHMENTS• Helped team assure interoperability of all major Ground Vehicle subsystems—including regenerative braking, power generation/management, service lighting, fire suppression, cooling systems- pumps/valves/RTDs, and power secondary power distribution (SPU/SPD/BLC).• Provided high fidelity performance data and robust verification to meet product delivery.

Centennial, Co, Us

Subcontract project management for new supplier certification on various avionics ECUs (MIL-STD-1553 Bus Couplers, Gyros, Servo Controllers, motors.). Managed new supplier certification and oversight of all System Engineering processes (SOW, CDR, PDR, FCA/PCA, SDRL, MRB, FMECA). Generated process instruction/training material and screened/qualified suppliers for military ruggedized embedded COTS for various proposals.ACCOMPLISHMENTS• Performed data reduction and rationale to justify extending launch restraint from 3 to 18 months for major cost savings.• Adjusted test limits including dynamic limits to minimize launch sequence abort rates.

Arlington, Va, Us

GSE/Test Lead coordinating concept, design, requirements definition, development, and test of fiber optic RS-422 remoting system using VME-based high reliability design with initiated BIT in lieu of COTS PLC for low cost modification. Helped define software requirements, including failsafe state/mode definition.Control system engineer with increasing responsibility from battery specialist, flight termination range safety equipment to hydraulic motor servo control actuator electronics. Designed space-grade ordnance firing circuit board. Studied various power bus topologies, evaluating types of relay and their architectures for power/ control avionics redesign proposal.Wrote/updated interface specifications (ICDs), acceptance test procedures/acceptance test requirements (ATPs, ATRs), test variations, verification test procedures (VTPs), and problem reports (PRs) for ground communication link. Evaluated test failures of circuit board assemblies to the component level, dispositioned Test Discrepancy Reports (TDRs), material rejection reports (MRRs), evaluating overstress, investigating root cause, writing Failure Analysis Reports (FARs), and implementing corrective action.ACCOMPLISHMENTS• Drafted schematics and cable wire lists to build complex remoting test racks with zero defects.• Implemented fleet corrective action before mission failure could occur upon acceptance forensics.• Advocate improvements to minimize flux contamination on wave solder cleaning process to increase yield.• Modified existing hardware emulation for real-time software development saving >$200K.

Bsee, Digital, Power

Msee Candidate, Controls