Open to Freelance & Remote

Siavash Heydarzadeh

Senior Electronics Hardware Engineer

10+ years designing high-reliability mixed-signal, RF, embedded and power electronic systems — from schematic to validated prototype — for automotive, medical, photonic and industrial applications. Vienna, Austria.

MCU ARM Cortex-M4 FPGA Xilinx Zynq ADC 24-bit DC/DC LLC Conv. REV 2.1 · MIXED-SIGNAL BOARD · SH-ENG FPGA: LBS Control DSP → Process → Commands Control + PWM + Safety
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Years Experience
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Industry Domains
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Publications
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PCBs Designed
Application Domains

Where I Work

Click any domain to see categorised projects.

🚗
Automotive
LED drivers, power converters, servo systems, HUD optics, radar altimeters
🔬
Medical & Photonic
Cell-sorting readout, ultra-low-noise photonic electronics, interposer PCBs
👓
AR & Wearables
Laser beam scanner drivers, MEMS optics hardware, FPGA scan control
⚙️
Industrial & Power
HF power converters, GaN stages, professional lighting, embedded control
✈️
Aerospace & RF
Multi-PCB transceivers, isolated power networks, navigation systems
🧪
Research & IC Design
RF CMOS DCOs, frequency dividers, 8 peer-reviewed publications
Core Skills

At a Glance

📐Mixed-Signal / PCB
⚡Power Electronics
🧩FPGA & Embedded
🛡️EMC / EMI
📡RF & Analog IC
🔬Validation & Debug
Technical Expertise

Skills & Qualifications

A decade of hands-on engineering across mixed-signal, power, FPGA, and RF domains — with systematic EMC methodology and full bring-up experience.

🔌
Mixed-Signal & PCB
Full schematic-to-layout ownership: HDI multilayer, signal integrity, power distribution, EMC-aware routing, controlled impedance.
HDI PCBSI/PIAltiumImpedance Ctrl
⚡
Power Electronics
LLC resonant converters, GaN/SiC PFC stages, ZVS topologies, multi-rail PMU. Automotive and industrial-grade.
LLC DC/DCGaN/SiCPFCZVS/ZCS
🧩
FPGA & Embedded
AMD/Xilinx Zynq RTL in VHDL/Verilog, AXI bus, real-time DSP pipelines, ARM Cortex-M firmware, closed-loop control.
VHDL/VerilogZynqARM CortexDSP
🛡️
EMC / EMI Engineering
Systematic CM/DM filtering, grounding topologies, ESD protection, shielding. Pre-compliance and design-for-EMC.
CISPR/IECCM/DMESDShielding
📡
RF & Analog IC
CMOS RF circuits in 65nm and 180nm: DCOs, frequency dividers, PLL, active BPF. Cadence Virtuoso.
65nm CMOSDCO/PLLCadencePhase Noise
🔬
Validation & Debug
Full lab bring-up: oscilloscopes, VNA, spectrum analysers, logic analysers, power integrity measurement, root-cause analysis.
OscilloscopeVNASpectrum Analyser
Proficiency
Altium Designer / PCB Layout95%
MATLAB / Simulink85%
Mixed-Signal Circuit Design95%
LTspice / Keysight ADS88%
Power Electronics Design90%
FPGA — VHDL / Verilog82%
EMC / EMI Engineering88%
C / C++ Embedded Firmware75%
Engineering Tools
EDA & PCB
Altium DesignerICD StackupPolar InstrumentsSaturn PCB
Simulation
LTspiceKeysight ADSPSIMPLECSPSpice for TI
FPGA & Embedded
AMD VivadoAMD VitisCadence VirtuosoSTM32 Tools
Modelling
MATLABSimulink
Programming
VHDLVerilogC / C++C#Python
Workflow
Git / GitHubJiraMS Office
Applications & Projects

Work by Domain

Filter by domain. Click any project card for full technical detail and animation.

🚗 Automotive
LED drivers · Power converters · Servo systems · HUD optics · Radar altimeters
▶ 87 km/h Navigation · Turn 250m FPGA LBS RGB Ctrl
Trilite-tech · 2024–Present
2024–Present · Trilite-tech GmbH
Automotive HUD — LBS Optical Engine & FPGA Control
MEMS RGB laser beam scanner hardware for automotive head-up display. HDI PCB, FPGA scan controller, EMC/ESD to automotive grade.
LBS/HUDMEMSFPGAHDI PCB
View Details →
GaN PFC Boost — 500W to 1.5kW Q1 Q2 Lr Cr D1-D4 Vout ARM MCU AZURE RTOS ZVS Gate Drive
2020–2022 · V-Research / Tridonic
GaN PFC LED Driver & LLC DC/DC — Automotive Lighting
500W–1.5kW boost PFC with GaN, ARM digital control via AZURE RTOS. LLC stages for 12V/48V automotive. Published PMED 2022.
GaN/ZVSPFCLLCAZURE RTOS
View Details →
Servo Motor H-Bridge Driver Current Sense PWM + Protection I-sense
2013–2017 · East Innovative
Servo Mechanism & Power-Monitor Driver — Automotive
Precision H-bridge servo driver with current sensing. Power-monitoring hardware for automotive subsystems. Closed-loop MCU firmware control.
ServoH-BridgePWM
View Details →
LLC Resonant DC/DC — Automotive Q1 Q2 Lr Cr D1-D4 Vout ZVS gate
2013–2017 · East Innovative
LLC DC/DC Resonant Converter — Automotive Power Supply
Half-bridge LLC resonant converter with ZVS across full load. DM/CM EMI filters, resonant tank design, automotive compliance validation.
LLCZVSResonantEMI
View Details →
FMCW C-Band Radar Altimeter — SoC FMCW signal FPGA SoC DSP Pipeline
2013–2017 · East Innovative
FMCW C-Band Radar Altimeter — Digital SoC & DSP
Digital SoC architecture for FMCW C-band radar altimeter. Real-time DSP pipeline on FPGA/RTL, mixed-signal PCB for automotive navigation applications.
FMCW RadarFPGA/RTLDSP
View Details →
🔬 Medical & Photonic
Cell-sorting · Ultra-low-noise photonic · Chip-level interposer · High-speed readout
FPGA Readout DSP Keep ✓ Discard
2023–2024 · Sarcura GmbH
Cell-Sorting Chip Platform — Driver & FPGA Readout
FPGA-based high-speed optical readout for microfluidic cell sorter. Sub-nV/√Hz noise, ADC/DAC interface, real-time DSP classification <2µs.
Cell SortingFPGAUltra-Low Noise
View Details →
Photonic SoC Bare Die Optical Input Ultra-Low Noise PSU <1nV/√Hz
2023–2024 · Sarcura GmbH
Photonic System Hardware — Interposer PCB & Low-Noise Power
High-precision interposer PCB for chip-level photonic integration with wire-bonding. <1 nV/√Hz noise power module using LDO cascades and LC filters.
Interposer PCBWire-BondingLow-Noise
View Details →
👓 AR & Wearables
Laser beam scanner · MEMS optics · FPGA scan engine · HDI compact PCB
FPGA LBS RGB Control R G B
2024–Present · Trilite-tech GmbH
LBS Driver & FPGA Scan Engine — AR Eyewear
Nanosecond-precision RGB laser diode drive, MEMS resonant scan, FPGA pixel clock and image warping RTL. Sub-cm² board in AR glasses form factor.
LBS DriverMEMSFPGA RTL
View Details →
SoC Processing PMU I/O OSC 8-layer HDI · Via-in-pad
2024–Present · Trilite-tech GmbH
Embedded Processing Hardware — 8-Layer HDI PCB
Compact embedded processing board for MEMS/laser optical module. 8+ layer HDI, via-in-pad, multi-rail PMU, high-speed serial I/O within AR eyewear form factor.
HDI PCBVia-in-padPMU
View Details →
⚙️ Industrial & Power
HF LED drivers · GaN converters · Professional lighting · LLC power stages
GaN PFC — 500W to 1.5kW Professional Lighting Boost L GaN Switch LED Array ARM MCU AZURE RTOS ZVS drive
2020–2022 · V-Research / Tridonic
GaN PFC LED Driver — 500W to 1.5kW Industrial Lighting
GaN boost PFC, adaptive ARM digital control via AZURE RTOS, ZVS operation. Published PMED 2022. Developed for professional and architectural lighting systems.
GaNPFCZVSRTOS
View Details →
LLC Resonant — Industrial Power Supply Q1 Q2 Lr Cr D1-D4 Vout
2013–2017 · East Innovative
LLC DC/DC Resonant Converter — Industrial Power Supply
Half-bridge LLC resonant converter with ZVS from light to full load. DM/CM EMI filter design and laboratory validation against industrial conducted-emissions limits.
LLCZVSEMI Filter
View Details →
✈️ Aerospace & RF
Multi-PCB transceivers · Isolated power networks · Navigation & weather systems
RF Transceiver B1 DSP / Control B2 Isolated PSU B3 Isolated PSU Ultra-Low Noise <100µV ripple RF Signal
2017–2019 · Moj Pardazan Alborz
Multi-PCB RF Transceiver — Aerospace Navigation & Weather
Multi-board wireless comms hardware for aerospace. Ultra-low-noise isolated DC/DC supply network (<100µV ripple), grounding topology, MATLAB/Simulink system modelling.
AerospaceRFIsolated PSU
View Details →
🧪 Research & IC Design
RF CMOS circuits · DCOs · Frequency dividers · PLL · 8 publications
Microelectronics Journal 2019 · 65nm TSMC CMOS LC Tank VCO core DCO 5.2–5.8 GHz 65nm CMOS 5.5 GHz
Research · 2019 · Microelectronics Journal
5.2–5.8 GHz DCO — 65nm CMOS
Fully linear DCO for IEEE 802.11a. Wide tuning range, phase noise –140 dBc/Hz at 3 MHz offset. Published in Microelectronics Journal (Elsevier).
65nm CMOSDCOPublished
View Details →
CEEC 2013 / WASJ 2013 · 0.18µm CMOS 12 GHz ÷2 TSPC ÷N Prog. ÷M Fout Control Word
Research · 2013 · Two publications
12-GHz Fractional-N Frequency Divider — 0.18µm CMOS
Programmable fractional-N divider using extended TSPC logic for 12 GHz operation in 0.18µm CMOS. Two publications: CEEC 2013 and WASJ 2013.
0.18µm CMOSFrac-NTSPC
View Details →
Academic & Research

Knowledge Base

Education
MSc · Electronics Engineering
Science & Research Branch, IAU
Tehran, Iran · 2011–2013
GPA 18.27 / 20
BSc · Electrical Engineering
Tafresh University
Arak, Iran · 2007–2011
GPA 16.83 / 20
Languages
🇮🇷
Persian
Native
🇬🇧
English
Fluent · IELTS
🇦🇹
German
B1 · ÖSD
Training
SDR for Aerospace (2016) Radar & EW (2014) Xilinx DSP (2012)
Research Grants
2016–2018
Mixed-Signal Ultra-Low Phase-Noise DCO
IEEE 802.11a Transceiver Research
2012–2014
GHz Fractional-N Digital PLL
65nm TSMC CMOS Platform
Publications
2022
Precise Timing Boost PFC Converter Adaptive Digital Control Using AZURE RTOS
PMED Conference · A. Grabher-Meyer
CONF
2022
Reliable, Precise & Repeatable Measurement Digitalization
V-Research White Paper
W/P
2019
A Fully Linear 5.2–5.8 GHz DCO in 65nm CMOS — Microelectronics Journal (Elsevier)
P. Torkzadeh, S. Sadughi
ISI
2014
High Gain Two-Stage Fully Differential Audio Amplifier, 0.18µm CMOS
AJEEE
JOUR
2013
12-GHz Programmable Fractional-N Frequency Divider, 0.18µm CMOS
CEEC Conference
CONF
2013
1-GHz CMOS Band-pass Filter Using Active Inductor and Capacitor
AJEEE
JOUR
2013
12-GHz Fractional-N Extended TSPC Frequency Dividers, 0.18µm CMOS
World Applied Sciences Journal
JOUR
2012
1.8V RF CMOS Active Inductor, 0.18µm CMOS
IJECE
JOUR
2012
5-bit 125-MS/s SAR ADC on FPGA
WASET
CONF
Start a Project

Let's Build
Something Together

I partner with companies that need experienced hardware engineering — from early design through validated prototype.

🔌
Hardware Design
Schematic, PCB, power management, EMC design
🧩
FPGA / Embedded
RTL, firmware integration, DSP pipelines
🔬
Validation & Debug
Lab bring-up, prototype validation, root-cause
📋
Technical Consulting
Design reviews, EMC optimisation, architecture
Contact Directly
✉  siavash136725@gmail.com ☎  +43 665 6563 4609 in  LinkedIn Profile
📍 Vienna, Austria · Available globally for remote work
Project Enquiry
Tell me about your project — I'll respond within 24 hours.
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