For example, in a charging case with Hall-effect switch and NFC charging: opening the lid triggers charging mode; closing the lid enables low-power sleep to prolong standby life.
A Hall-effect switch is a magnetoelectric sensor. Using the Hall-effect, it converts magnetic-field signals into electric signals for magnetic detection, lid-opening detection and position feedback. Mount a magnet on the lid. When the lid opens or shuts, the Hall-effect switch senses magnetic proximity or removal and sends different electrical signals for the chip to handle events.
Typical workflow: Hall-effect sensor reads lid state - Lid open: Enable NFC power transmitter, start charging - Lid closed: Turn off RF transmission, enter standby
This balances user experience and power draw and extends the overall runtime of the charging case.
A Hall-effect switch is a magnetoelectric sensor. Using the Hall-effect, it converts magnetic-field signals into electric signals for magnetic detection, lid-opening detection and position feedback. Mount a magnet on the lid. When the lid opens or shuts, the Hall-effect switch senses magnetic proximity or removal and sends different electrical signals for the chip to handle events.
Typical workflow: Hall-effect sensor reads lid state - Lid open: Enable NFC power transmitter, start charging - Lid closed: Turn off RF transmission, enter standby
This balances user experience and power draw and extends the overall runtime of the charging case.
