In the notebook computer, the Hall effect sensor is mainly used to detect the on and off status of the screen when the computer is flipped. Installing a Hall element in a notebook to sense screen changes to determine the computer's operating status can effectively reduce the power consumption of the machine.

All-pole Hall is often used in notebook computers. It is an all-pole switch Hall using CMOS technology. It can work without distinguishing between N and S pole magnetic fields. In order to better provide accurate magnetic switch points and thus adopt advanced chopper stabilization technology, it has the characteristics of high sensitivity, low power consumption, and high stability. It is a hall with a very wide range of applications.

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