ALLPCB
Hardware Design for Medical Wearables
Design guide for a medical wearable: PPG-based heart rate and SpO2 measurement, accelerometer step counting, MCU selection and low-noise power management.
Security Solutions for 5G Mobile Devices
Examines 5G mobile security risks and proposes a terminal solution using hardware-based system isolation and guard-style intranet VPN with secure inter-system communication.
Qorvo Low-Power PMIC for Medical Wearables
Overview of PMIC design for compact wearables, comparing Qorvo's ACT81460 and Maxim's MAX20310; emphasis on low quiescent current, SIMO topology, and small WLCSP/WLP packages.
Simplifying Mobile USB-C Design
Technical overview of USB-C charging challenges and how integrated USB-C buck charger ICs with built-in port controllers simplify power delivery and reduce BOM
How Non-Terrestrial Networks Enable Satellite Internet
Technical overview of non-terrestrial networks (NTN), covering constellation types, 3GPP standardization, component stress factors and market demand for NXP Layerscape processors.
Two Mechanisms for RRC Connection Establishment in 5G
Technical summary of 5G RRC connection establishment, covering gNB-CU/gNB-DU split, UE context setup, dual-connectivity and SA/NSA call flow sequences.
Wearables Moving to Medical Grade: New Component Requirements
Technical overview of medical-grade wearables focusing on clinical accuracy and low-power design for compact continuous health monitoring
Choosing the Right PMIC for Optical Sensor SNR
Examines how burst-mode boost converters degrade SNR in optical sensing and how a PMIC with a low-ripple buck-boost converter improves LED drive stability and SNR.
Energy-Efficient Design for Slim Fitness Wearables
Technical guide to wearable design focusing on power efficiency, choosing regulators and measuring battery state-of-charge to minimize size and extend runtime.
How 5G Network Features Affect V2X Development
Overview of V2X and 5G impacts, covering Murata dual?standard V2X modules (Autotalks) and integrated PoE DC?DC converters for OBU/RSU power and connectivity.
AlterEgo wearable reads subvocalized speech
Overview of MIT's AlterEgo wearable that detects subvocalization via facial neuromuscular electrodes and neural networks, providing Bluetooth connectivity and bone?conduction feedback.
Designing Wireless Charging for Wearable Devices
Technical overview of wireless charging for wearable devices: inductive and resonant principles, Qi communication, coil components, controllers, and design considerations.
SIMO Switch Regulators Extend Battery Life in Wearables
Technical overview of SIMO (single?inductor multiple?output) buck?boost PMICs for space?constrained devices, reducing component count and quiescent current.
Waterproofing Base Station Interfaces
Practical RRU waterproofing guide for ANT ports detailing cold-shrink tubing and the 1+3+3 tape method, unused-port protection, and storage/maintenance recommendations.
Dual Intelligence Network Overview
Explore the Dual Intelligence Network for optimized 5G coverage, interoperability, and user experience with intelligent automation.
Can Brain–Computer Interfaces Truly Work?
Overview of Neuralink's FDA-approved BCI trials, ethical scrutiny, and technical limits of decoding intentions, applications, paradigms, and Chinese startups.
How Digital Temperature Sensors Sense Temperature
Overview of Huapu Micro's T09 digital temperature sensor: ±0.2°C accuracy, 1.71–3.6V supply, low-power operation, I2C interface, register map and application use cases.
Wearable Sensors: Smaller Size, Greater Impact
Technical overview of wearables and sensors: MEMS, PPG, accelerometers, gyroscopes, GNSS and pressure sensors, market trends and miniaturization driving medical and consumer devices.
Four Communication Methods for Emergency Sites
Overview of methods to establish reliable on-site emergency communications: satellite communication, 5G private networks, broadband mesh and narrowband trunked radio.
Composite Plastic Smartphone Back Cover Production Process
Technical overview of PC/PMMA composite smartphone back covers, detailing production process: UV transfer, vacuum coating, high-pressure forming, laser/CNC finishing.