Embedded Generator for Self-powered Smart Watches and Wristbands

Inventors

Prof. LIAO Wei Hsin

Department

Department of Mechanical and Automation Engineering


  • The working time of the wearables is constrained by battery capacity
  • Frequently recharging the battery causes great inconvenience to the user
  • Worldwide user population and revenue of the wearables are around 360 million and 16 billion US dollars, respectively

  • Compact design to improve the space utilization
    Integration of several functional units in limited volume
  • Efficient frequency-up conversion mechanism
  • > 4x output power and 10x power density compared with existing technologies
  • Compact and easily embedded in wearable electronics

  • Can be embedded in various wearable electronics, including smart watches and wristbands to sustainably power multiple sensors
  • Can be used for health monitoring, GPS, communication etc.

Picture3
Prototype embedded in a watch case

Liao 2
Prototype with disassembled cover


Energy & Green Technology

P-2018-0856

- CN Publication No.: 111525768 A - US Publication No.: 2020/0251962 A1

Embedded Generator for Self-powered Smart Watches and Wristbands

Inventors

Prof. LIAO Wei Hsin

Department

Department of Mechanical and Automation Engineering

Key Problem and Market Opportunity

  • The working time of the wearables is constrained by battery capacity
  • Frequently recharging the battery causes great inconvenience to the user
  • Worldwide user population and revenue of the wearables are around 360 million and 16 billion US dollars, respectively

Key Advantages of the Technology

  • Compact design to improve the space utilization
    Integration of several functional units in limited volume
  • Efficient frequency-up conversion mechanism
  • > 4x output power and 10x power density compared with existing technologies
  • Compact and easily embedded in wearable electronics

Potential Applications

  • Can be embedded in various wearable electronics, including smart watches and wristbands to sustainably power multiple sensors
  • Can be used for health monitoring, GPS, communication etc.

Photos

Picture3
Prototype embedded in a watch case

Liao 2
Prototype with disassembled cover

Categories

Energy & Green Technology

CUHK Tech ID

P-2018-0856

Patents

- CN Publication No.: 111525768 A - US Publication No.: 2020/0251962 A1

Enquiry Contacts

orkts.liaison@cuhk.edu.hk