Application of the Hall Switch GX402H (SS460) in Torque Sensors for Electric Bicycle Motors

A Hall switch is a component based on the Hall effect, primarily used in sensor fabrication. It leverages the sensitivity advantages of semiconductors to evaluate critical parameters such as conductivity type, carrier concentration, and carrier mobility, with the Hall coefficient serving as the key reference value.

 

In the development of electric bicycle motors, the use of various sensors has become increasingly widespread, objectively driving the application of Hall switches. Analyzing this has significant practical significance. The parameters of electric bicycle motors are generally stable, as the functionality of the electrical equipment remains unchanged under default conditions. During continuous power supply, the voltage, resistance, and current of electric bicycle motors are relatively stable.

 

The application of Hall elements emphasizes optimizing the functionality of torque sensors, enabling the sensor to establish operational constraints based on a fixed parameter. During conventional startup and operation of the bicycle, the sensor acquires rotational speed information from the target object (i.e., the electric bicycle motor), converts physical changes into electrical signals via internal devices, Combining precise perception of the corresponding information with existing parameters, the potential difference is analyzed, with the Lorentz force used as an additional parameter to determine the magnetic field strength of the tested components.

 

GX402H (replacing SS460) is a high-voltage bipolar Hall switch chip manufactured using a high-voltage bipolar process. The chip consists of a voltage regulator unit, Hall voltage generator, differential amplifier circuit, temperature compensation circuit, and open-collector output circuit. Operating mode: Input magnetic flux density, output as a digital voltage signal.

 

This chip is capable of withstanding high-voltage surges and has excellent noise immunity; it is suitable for various applications in consumer electronics, automotive, and industrial control fields. It is available in TO92S through-hole packaging and surface-mount SOT23-3L packaging, both of which comply with RoHS standards.