Declan Whitaker Senior Electrical Engineer
Allentown, PA • declan.whitaker@gmail.com • +1 610-555-0147
Profile Summary
- Senior Electrical Engineer with 10 years of experience designing lighting controls and LED dimmers at a lighting controls maker and an AV control company, focused on power electronics, analog design and compliance testing for high-volume products.
- Hands-on with ECAD (Altium Designer, OrCAD), simulation (LTspice, MATLAB), power stages (flyback, GaN), microcontrollers such as STM32, and lab tools like Yokogawa power analyzers.
- Deep experience in no-neutral power supplies, low-noise sensing front ends, EMC fixes on line-voltage boards and DFM for high-volume builds, using worst-case analysis on every design and pre-compliance scans before the lab to ship products that clear UL and FCC on the first visit.
- Works closely with firmware, mechanical, manufacturing and test lab teams across stage-gate programs with EVT, DVT and PVT builds, agreeing the power budget and connector pinouts with them before layout starts.
- Mentors junior engineers on board bring-up and LTspice modeling, chairs the weekly schematic review, and wrote the component derating guide the team designs to.
Technical Skills
- Schematic & PCB Tools:
- Altium Designer, OrCAD, KiCad, Altium 365, PADS
- Simulation & Analysis:
- LTspice, MATLAB, PSpice, SIMetrix, Simulink, HyperLynx, Monte Carlo analysis
- Power Conversion:
- DC-DC converters, AC-DC supplies, flyback, GaN, PFC, LDOs, MOSFET gate drivers
- Analog & Signal Chain:
- Op-amps, 12-bit ADCs, active filters, current sensing, zero-cross detection, voltage references
- Interfaces & Microcontrollers:
- STM32, I2C, SPI, UART, USB-C PD, Ethernet, PoE+
- Lab & Test Equipment:
- Tektronix oscilloscopes, Yokogawa power analyzers, spectrum analyzers, electronic loads, thermal chambers, Python, LabVIEW
- Compliance Standards:
- UL 1472, FCC Part 15, CISPR 15, IEC 62368-1, IEC 61000-4-2, IEC 61000-4-5, IPC-2221
Education
Work Experience
- Designed the schematics for a 3-model wireless LED dimmer family in Altium Designer, from the MOSFET power stage to the sub-GHz radio, with derating rules and an approved second source on every critical part, cutting part count from 212 to 168.
- Built the power tree and rail-by-rail power budget for the no-neutral model, a flyback stage and LDO rails fed by leakage current through the load, cutting standby draw from 410 mW to 180 mW with no LED flicker at low trim.
- Designed the zero-cross detector and load current sensing, an op-amp stage into the STM32G0’s 12-bit ADC, holding current error under 1.5% from 0°C to 60°C so the dimmer can tell LED loads from incandescent ones.
- Reviewed placement and routing of the 4-layer board with our PCB designer, splitting line-voltage and low-voltage zones with creepage and clearance to UL 1472 and a solid ground under the radio, which shrank the board 18% to fit a slimmer faceplate.
- Simulated the flyback and MOSFET gate drive in LTspice, running 500 Monte Carlo cases across part tolerances and line voltage, and caught an undervoltage lockout problem at 90 VAC before the first EVT boards were ordered.
- Brought up EVT and DVT boards with a Tektronix oscilloscope, a Yokogawa WT500 power analyzer and Python scripts that stepped each unit through 36 load and line corners, cutting a DVT test round from 3 weeks to 6 days.
- Fixed a 9 dB radiated emissions overage at 150 MHz found in pre-compliance scans with an RC snubber and extra ground stitching, then cleared FCC Part 15 Class B and UL 1472 at UL Solutions on the first lab visit.
- Ran DFM and DFT reviews with manufacturing before PVT, adding test points for in-circuit test and writing the functional test fixture spec, which raised first-time yield from 93.4% to 99.1% over the first 6 months of production.
- Designed the PoE+ powered device front end and isolated flyback supply for a 10-inch touch panel, reaching 87% efficiency at full load inside the 25.5 W PoE+ power budget.
- Checked signal integrity on HDMI 2.0 and 1 Gb Ethernet routing for an AV-over-IP encoder in HyperLynx, then confirmed eye margins with a Keysight oscilloscope across 24 production boards.
- Supported 5 product launches at the contract manufacturer, writing functional test specs and closing 38 ECOs for parts that reached end of life.