SLVAFM6 may   2023 TPS62A02 , TPS631000

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Battery Powered Camera Functions
  6. 3Power Supply
    1. 3.1 USB Type-C Charge Port
    2. 3.2 Solar Charging
  7. 4Power Structure Design
    1. 4.1 Always Working Power Rails
    2. 4.2 Intermittent Power Supply
    3. 4.3 High Efficiency Power Rails
  8. 5Conclusion
  9. 6References

1 Introduction

Battery powered camera products have had great growth in recent years, including wireless camera, video doorbell, e-locker and so on. Not only because battery power camera is easy to install anywhere, but also video performance and battery working time are improved. Correspondingly, the growth also pushes engineers to try to find extremely energy saving designs and energy supply designs. Basically, there are several approaches to extend battery working lifetime. Find ultra-low shutdown current power components which do not normally work, find ultra-low quiescent current power components for always working parts, design high-efficiency power rail to increase power utilization, install auxiliary power supply such as solar panel, optimize firmware to reduce run up time, and working modes.