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Dongguan Hallsen Technology Co., Ltd
Application of Hall switches in treadmills: Hall switches are used to detect and monitor the speed and movement status of treadmills. Usually, Hall switches are installed in the main shaft or transmission system of the treadmill. When the treadmill moves, the rotation of the main shaft or transmission system will cause changes in the magnetic field, and the Hall switch can sense these magnetic field changes and convert them into corresponding electrical signals. By analyzing these signals, the treadmill can monitor the running speed, movement distance and other related data in real time.
Recommended model: HS248 full-polarity low-power Hall magnetic switch
HS248 is a non-polar Hall switch based on mixed-signal CMOS technology. This IC uses advanced chopper stabilization technology to provide accurate and stable magnetic switch points.
In terms of circuit design, HS248 provides an embedded controlled clock mechanism to provide a clock source for the Hall device and analog signal processing circuit. At the same time, this controlled clock mechanism can send a control signal to make the circuit with high current consumption enter the "sleep" mode periodically;
Also through this mechanism, the chip is periodically "woken up" and detects the strength of the magnetic field passing through the Hall device according to the predetermined magnetic field strength threshold.
If the magnetic flux density is higher than the "operating point" threshold or lower than the "release point" threshold, the open-drain output transistor is driven and latched into the corresponding state. During the "sleep" cycle, the output transistor is locked in its previous state.
In battery-powered applications, this design provides the best support for extending the working life. The output transistor of HS248 is locked in the on state when there is a certain strong south or north magnetic field facing the package marking side, and locked in the off state when there is no magnetic field.
