Application Note About Motion Sensor-Design Example for an Ambient Light Powered PIR

Many info such as signal, current, sensor, and data are described inside the application note. This application note gives us things around receiver, transmission, and circuit.

In this application note we can get information such as transmitter, solar cell, block diagram, and current consumption. These are taken from the application note:

additional charging current required for start up within 5 minutes is therefore: Ic (µA) = C x U/(2 x t) = 330 µF x 3 V/(2 x 300 s) = 1.7 µA ( = 1/3 of the totally quiescent current!) According thus, the required total supply current It@40 lx > 5 µA + 1.7 µA = 6.7 µA@40 lx Note: Since one transmission exhausts maximal 3 ms x 15 mA = 45 µAs every 60 seconds while the charging current amount during this time is: 60 seconds x 1.7 µA = 100 µAs, meaning the recovery condition between two transmissions is also easily fulfilled.

Also, the application note contains information around the motion sensor, motion sensor, and radio motion sensor.

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