ALLPCB
ESD Protection Strategies for Wearable Devices
Guidance on ESD protection and PCB layout for wearable devices: HBM/CDM testing, TVS diode placement, trace minimization, and protecting sensitive ICs.
Wearable Photoacoustic Patch for Clinical Monitoring and Research
UC San Diego developed a wearable photoacoustic patch for noninvasive hemoglobin imaging and vasculature mapping, using VCSEL arrays and piezoelectric ultrasound transducers.
Wearable Interactive Camera Based on V853
Design of a wearable smart camera using Allwinner V853 NPU for real-time image detection, gesture recognition and IoT connectivity; MIPI camera, DDR3, eMMC, Wi?Fi/Bluetooth.
Quartz Crystal Oscillators for Wearable Devices
Technical overview of crystal oscillators for wearables, covering frequency, package, low-power and vibration requirements, plus a smartwatch nRF52840 reference design.
Wearable Ultrasound Patch for Transdermal Delivery
MIT-developed wearable ultrasound patch uses piezoelectric discs in PDMS to create microjets and transient microchannels, enhancing transdermal drug delivery and penetration depth.
Design Principles for Wearable Temperature Monitoring
Design considerations for wearable temperature patches to meet ASTM ±0.1°C accuracy: sensor selection, thermal contact and isolation, PCB layout and power placement.
Flexible Wearable Optical Wireless Sensor for Fruit Quality
Flexible wearable optical wireless sensing (FWOS) system using laser-patterned PET/PI/Cu circuits and AS7263 NIR sensors for real-time fruit quality monitoring via Bluetooth.
MR Headset Features and MRI Imaging Principles
Overview of mixed reality (MR) headsets — origins, tracking and interaction capabilities — plus fundamentals of magnetic resonance imaging (MRI) signal processing, reconstruction.
How Smart Bands Monitor Sleep Quality
Learn how smart bands monitor sleep quality using actigraphy and heart rate techniques like PPG and ECG for better rest optimization.
Dyson Air-Purifying Headphones: Motor Control Analysis
Teardown of Dyson Zone air-purifying headphones detailing ANC integration, motor and filtration design, key ICs (BES2300, LPC5528) and the DRV10975 motor driver.