Extending Battery Life for Ultra-Low-Power Wearables

Examines how silicon vendors enable low-power wearables through power-efficient microcontrollers, radios, displays and power management to extend battery life.

Runxin Ultra-Low-Power MCU with BLE Solution

Overview of ultra-low-power MCU technology (SPOT) and low-power BLE solutions, including BLE 5.2 and LE Audio, for always-online IoT and wearable devices.

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.

PCB Design Considerations for Wearable Devices

Practical guide to wearable PCBs covering substrate choices (FR4 vs Rogers), manufacturing tolerance, RF design, and RF transmission lines like microstrip and coplanar waveguide

Wireless Li-Ion Charger with Integrated DC/DC for Wearables

Technical overview of the LTC4126 wireless charger receiver for wearables, detailing inductance-free DC-DC charge-pump, CC/CV charger, safety features, and ZVS transmitter pairing.

Technologies Used in Wearable Device Design

Technical overview of capacitive sensing for wearables: low-power touch and proximity design, wear detection, gesture touchpads, robustness, signal processing, and cost trade-offs.

Extending Wearable Battery Life Through Charging Control

Overview of how battery capacity, leakage current and termination current affect runtime in low-power wearables, with charger IC recommendations.

Wearables in the Wireless Charging Market

Overview of wireless charging technology and market adoption across wearables, automotive and mobile devices, highlighting receivers, transmitters and coils.

Multi-Rail DC/DC Converters for Wearable Devices

Overview of TI's TPS62770 multi-rail buck and boost DC/DC converter for wearables, highlighting low quiescent current, display/LED driving for PMOLED and LCD backlights.

Selecting Accurate Fuel Gauges for Wearable Devices

Technical overview of HG-CVR smart fuel gauge (LC70920XF/LC709203F) using internal-resistance and voltage tracking to estimate RSOC with ±2.8% accuracy, low power.