Asset trackers integrate numerous subsystems
in a small space. Though the tracking modules can differ in style and features, they
share similar digital interfacing challenges, such as reading in data from a variety of
sensors or interfacing with a GPS module (Optimizing Asset Trackers With Logic and Translation Use
Cases). The system is battery-powered, which requires higher power
consumption and efficiency. Taking tracker as an example, this application note proposes
a solution using solar panel as the power supply for the tracker and realize MPPT
function with a single TPS61094. Figure 2-1 shows the typical system diagram.
Figure 2-1 System Block Diagram of
TPS61094 Power Supply