Michael Brown
Test and measurement engineer with expertise in oscilloscopes, spectrum analyzers, and automated test system design.
6304 articles published
High-Power IR Emitter Diode: Engineering Specifications, Thermal Management, and Real-World Deployment in Telecom and Sensing Systems
A technical deep dive into high-power infrared emitter diodes—including spectral output, thermal derating curves, driver circuit design, and field deployment lessons from fiber-optic transceivers, LiDAR modules, and secure optical wireless links. Covers Osram SFH4715AS, Vishay VSMY2850G, and Broadcom AFBR-79EQZ with datasheet-validated metrics.
EIED Online CAN 101: CAN Where Ethernet Does Not — Industrial Realities, Signal Integrity, and Deployment Truths
A rigorous technical analysis of Controller Area Network (CAN) in industrial edge environments—why CAN remains indispensable where Ethernet fails, covering signal integrity constraints, noise immunity benchmarks, topology limitations, timing determinism, and real-world deployments across Bosch, Texas Instruments, and STMicroelectronics platforms.
Dibcom’s 3-in-1 Chipset Advances DTTV: Signal Integrity, Power Efficiency, and System-Level Integration Breakthroughs
Dibcom’s DB8090 SoC integrates DVB-T2 demodulation, HEVC decoding, and ARM Cortex-A53 application processing in a single 14nm die—reducing PCB area by 42%, cutting standby power to 85 mW, and enabling <1.2 µs timing jitter for ultra-stable RF lock in portable DTTV receivers.
Voltage Range Extended to 3 kV on HV Microsize Supplies: Engineering Breakthroughs, Design Trade-offs, and Real-World Validation
This technical deep dive examines how recent advances in dielectric materials, monolithic integration, and packaging have enabled microscale high-voltage DC-DC converters to reliably operate up to 3 kV output—without compromising size, efficiency, or safety certification. Includes measured data from Vicor, RECOM, XP Power, and TDK-Lambda units.
System Chips Enable New Telecom Services: The Silicon Backbone of 5G-Advanced, Private Networks, and AI-Driven Connectivity
How modern system-on-chip (SoC) architectures—featuring integrated RF transceivers, hardware-accelerated AI engines, and ultra-low-latency scheduling—are unlocking private 5G networks, real-time network slicing, and carrier-grade edge AI services.
Integrating HSPA/GSM Connectivity with Digi XBee 3G Global Embedded Modems: A PCB Layout and System Integration Guide
A practical, engineering-focused guide for integrating Digi XBee 3G Global modems into embedded systems—covering RF layout, power integrity, antenna selection, AT command sequencing, regulatory compliance, and real-world validation using Telit LE910C1-NA and Sierra Wireless HL7800 modules as reference platforms.
Circuit Controls Two LEDs With One Microcontroller Port Pin: Practical Design, Analysis, and Layout Guidelines
A detailed engineering analysis of bidirectional LED driving using a single microcontroller I/O pin—covering circuit topology, timing constraints, voltage/current validation, PCB layout best practices, and real-world measurements from STM32 and ESP32 platforms.
How Many Credit Cards Have You Lost? A Data-Driven Look at Physical Card Loss, Risk Exposure, and Smart Mitigation Strategies
An evidence-based analysis of global credit card loss rates, real-world incident statistics from Visa, Mastercard, and JPMorgan Chase, hardware-level security implications, NFC skimming vulnerabilities, and practical engineering-backed solutions—including RFID-blocking materials, EMV chip failure modes, and IoT-integrated tracking devices.
A Time To Preserve Technical Legacies
As telecom networks evolve toward 5G SA, Open RAN, and cloud-native core architectures, legacy systems—like Nokia’s DX 200 switches, Ericsson AXE-10 platforms, and Alcatel-Lucent 1350 OMS—remain operationally critical. This article examines why preserving technical legacies is not nostalgia—it's infrastructure resilience, regulatory compliance, and engineering continuity. With over 42% of global mobile traffic still routed through circuit-switched infrastructure (GSMA, 2023), and 28 million legacy voice lines active in the U.S. (FCC, Q2 2024), preservation is an urgent operational imperative.
Real-Time Clock ICs: ACPI Compliance, Y2K Robustness, and Embedded System Reliability
A technical deep dive into RTC ICs that meet ACPI specification requirements and guarantee Y2K-compliant date/time handling—covering architecture, register-level behavior, vendor implementations (Maxim, NXP, STMicroelectronics), and validation practices used in mission-critical embedded systems.
NSF Awards $10M to Launch Center for Trustworthy Machine Learning — A New Era for Display Integrity and Optoelectronic Systems
The National Science Foundation has awarded a $10 million, five-year grant to establish the Center for Trustworthy Machine Learning (CTML), headquartered at the University of California, San Diego. The center unites display engineers, optoelectronics specialists, AI safety researchers, and semiconductor physicists to co-design ML systems that guarantee verifiable accuracy, robustness, and physical fidelity — especially in human-facing optical interfaces such as AR glasses, medical imaging displays, and automotive HUDs.
Agilent Introduces Two Portable Oscilloscope Families: DSOX1204G and InfiniiVision 3000T X-Series Redefine Field-Deployable Test Rigor
Agilent Technologies (now Keysight Technologies post-2014 spinoff, but legacy Agilent branding remains active in product documentation and service channels) launched two distinct portable oscilloscope families in Q4 2012 — the entry-level DSOX1204G and the mid-range InfiniiVision 3000T X-Series — delivering unprecedented bandwidth, deep memory, and integrated protocol analysis in battery-powered 4-channel form factors.
Fast FPGA Family Delivers Hot-Swappable I/Os for Mission-Critical Wireless Infrastructure
This technical deep dive examines the Xilinx Versal Premium and Intel Agilex 5 FPGA families—both supporting true hot-swappable I/O banks—with measured timing margins, power efficiency benchmarks, and real-world deployment insights from 5G baseband and satellite ground station applications.
Flex Circuits Tap New Performance Enhancing Techniques
Modern flex circuits are evolving beyond simple interconnects—leveraging ultra-thin copper foils, embedded passive integration, AI-optimized routing, and thermally adaptive polyimide variants to achieve 40% higher signal integrity, 35% lower insertion loss at 28 GHz, and thermal dissipation up to 1.8 W/cm². Leading adopters include Apple’s AirPods Pro (2nd gen), Tesla’s Autopilot HW4 flex backbone, and Medtronic’s MiniMed 780G insulin pump.
New Applications Bring Renewed Life to UWB Wireless
Ultra-Wideband (UWB) technology—once sidelined for Wi-Fi and Bluetooth—is experiencing a dramatic resurgence, driven by precise spatial awareness, secure ranging, and low-latency communication. This article examines real-world deployments from Apple, Samsung, BMW, and NXP; quantifies performance gains in accuracy (±10 cm), latency (<5 ms), and power efficiency (1–5 mW); and explores automotive keyless entry, industrial asset tracking, AR/VR spatial anchoring, and smart home automation as high-impact use cases.
Q&A with Proto Labs’ Rob Bodor: How Additive Manufacturing Is Reshaping PCB Prototyping and High-Speed Hardware Development
In this in-depth interview, Proto Labs’ Director of Engineering Rob Bodor discusses how metal and polymer additive manufacturing—particularly direct metal laser sintering (DMLS), binder jetting, and high-resolution stereolithography (SLA)—is accelerating PCB enclosure design, RF shield integration, thermal management, and functional prototyping for high-speed digital systems operating at 28 Gbps and beyond.
Zephyr: A Wearable Operating System Engineered for Real-World Interconnect Reliability
Zephyr OS is a real-time, open-source operating system purpose-built for ultra-constrained wearable devices—delivering sub-20KB footprint, deterministic latency under 5μs, and seamless integration with industrial-grade interconnects like Molex PicoBlade (1.25mm pitch) and Hirose FH34 (0.5mm pitch). This article details its architecture, power management, sensor fusion stack, and physical layer interoperability across leading wearable platforms.
Photo-Detector Chip Switches to CMOS: Performance, Integration, and Industry Impact
How the migration from discrete photodiodes and specialized compound-semiconductor detectors to monolithic CMOS photo-detector chips is transforming optical sensing in consumer electronics, automotive LiDAR, medical imaging, and industrial automation—with real-world data on quantum efficiency, dark current, speed, and system-level power savings.
High-Frequency Buck Regulators Fit in Ultra-Small Packaging: Power Density Breakthroughs for 5G, AI Accelerators, and Edge Compute
This article examines how modern high-frequency buck regulators—operating at 2 MHz to 10 MHz—enable unprecedented power density through advanced packaging, integrated magnetics, and GaN/SiC switching. We detail real-world implementations from Texas Instruments, Infineon, and Analog Devices, with quantitative comparisons of footprint, thermal resistance, and transient response across 3 mm × 3 mm QFN, 2.5 mm × 2.5 mm BGA, and chip-scale packages.
Thermistors Accurately Measure Temperatures From 100 K to 500 K: Precision, Physics, and Practical Deployment in Power Electronics and Energy Systems
A technical deep dive into how modern thermistors—especially NTC and PTC types—deliver ±0.1 K to ±0.5 K accuracy across the 100 K–500 K range (–173 °C to +227 °C), with validated performance data from Vishay, TE Connectivity, and Murata devices used in battery thermal management, power converter monitoring, and aerospace thermal control.
Arm Cores Provide Direct Java Execution Target for 3G Wireless Devices
How Arm architecture enabled efficient, hardware-accelerated Java bytecode execution in early 3G mobile handsets — with real-world implementations from Nokia, Sony Ericsson, and Motorola using Jazelle technology.
Engineering a Robust Standalone Sound Board for High-Fidelity WAV Playback
A deep technical walkthrough of designing and building a standalone sound board that reliably plays uncompressed WAV files—covering microcontroller selection, audio DAC performance, power integrity, SD card interface reliability, and real-world validation using industry-standard test equipment.
If 4G Is Here, Can 4G in Your City Be Far Behind?
A technical analysis of 4G LTE deployment timelines, infrastructure bottlenecks, and real-world rollout disparities—backed by FCC data, carrier benchmarks, and interconnect engineering insights.
ADC Topologies and Performance: Matching Architecture to Real-World Applications
A technical deep dive into how ADC architecture—SAR, delta-sigma, pipeline, flash, and successive approximation—affects resolution, speed, power, and noise; with concrete performance data from Texas Instruments, Analog Devices, and STMicroelectronics applied to medical imaging, industrial automation, audio processing, and RF sampling.