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The products of “Nanjing AH Electronic Science & Technology Co., Ltd ” includes AH series unipolar Hall switch IC, AH series bipolar Hall IC, AH series latch Hall switch IC, AH series linear Hall IC, WG series zero power consumption magnetic sensor, and all kinds of customized products etc.

Hall Sensor

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The Process Technology Of Hall Effect Sensor

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In order to accurately distinguish the cause of  Hall Effect Sensor  abrupt signal generation, a wavelet band analysis method based on mathematical model is proposed. For the measurement and control system in industrial process, the relationship between the frequency composition of the output mutation signal and the cause of the mutation is analyzed. Using wavelet band analysis technology, the high and low frequency signals are separated, and energy statistics are performed. According to the change of the energy ratio of high and low frequency signals, the cause of the mutation signal is judged. The computer simulation of the classic control system and the experimental results of the constant pressure water supply system show that the method can effectively diagnose whether the  Magnetic Sensor  is faulty. In the measurement and control system, the output signal of the sensor is affected by many factors, and often abrupt changes. These mutation point values contai...
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Unipolar Hall IC

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  Unipolar Hall IC The unipolar Hall-effect sensor  includes the following on a single silicon chip: reverse voltage protector, voltage regulator, temperature compensation circuit, Hall-voltage generator, signal amplifier, Schmitt trigger and open-collector output driver, etc. The integrated voltage regulator and temperature compensation circuit ensure that the sensor works stably in a wide voltage and temperature range. The reverse voltage protection circuit prevents the sensor from being damaged by reverse voltage. Produced with bipolar technology, a unipolar Hall IC  is more stable and reliable. It is available in three package types: SOT-23-3L (Type M), SOT-89 (Type S), and TO-92UA (Type UA). Each package is lead (Pb) free, with 100% matte tin plated leadframes.  More detail please click: https://www.ahest.net/hall-sensor/
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Hall's Practical Application in A Laptop

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Laptop is a small, portable personal computer. And desktop computers have a similar structure, but has the advantages of small size, light weight, easy to carry. In the laptop,  Hall IC  is mainly used to detect the screen when the computer flip light, off the situation. Generally use all-pole Hall. In most cases, a magnet is installed in the laptop's display and a Hall element (Hall sensor) is installed in the corresponding part of the main body of the unit. When the screen is opened, the magnet is away from the Hall element and the computer is working properly. When the screen is closed, the magnet approaches the Hall element. The magnetic field around the Hall begins to change. The notebook screen goes off and the computer goes to sleep. In the notebook to install Hall elements to detect changes in the screen, in order to determine the working status of the computer can effectively reduce the power consumption of the machine. We are Hall IC supplier. Welcom...
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