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In the process of using   Hall IC , we often encounter the situation where Hall stops working after a period of time. At this time, the Hall chip may be damaged. What causes it? As a  Latch Type Hall Sensor Factory , I tell you that you can analyze and detect from the following aspects: 1. First check the external circuit for any short circuit or open circuit caused by false soldering and missing soldering. 2. The Hall of the switch type generally requires an external pull-up resistor to work properly, check whether the resistance is normal. 3. Check the magnets separately. Some magnets are too long to demagnetize the magnets, resulting in Hall's insensitivity and malfunction. 4. Whether it exceeds the temperature range of the Hall itself. If the temperature is too high, the Hall will be damaged and the magnet will be demagnetized. 5. Check whether the voltage and current are stable and whether they are within the specified range of the Hall parameter. Partial upper limi

The Hall effect is a magnetic sensitivity effect. Generally, a magnetic field with a magnetic induction intensity of B is applied in the length X direction of a semiconductor wafer, and an electromotive force UH is generated in the width Y direction. This phenomenon is called the Hall effect. UH is called the Hall potential, and its size can be expressed as: UH = RH / d * IC * B (1) In the formula, RH is called the Hall coefficient and is determined by the properties of the conductor material; d is the thickness of the conductor material, IC Is the current intensity, and B is the magnetic induction intensity. Set RH / d = K, then formula (1) can be written as: UH = K * IC * B (2) It can be seen that the Hall voltage is proportional to the product of the control current and the magnetic induction intensity. K is called the larger the Hall coefficient value , The higher the sensitivity; the smaller the component thickness, the greater the output voltage. Hall coefficient: In the formula

ATM, also known as ATM, is a highly sophisticated mechatronic device that uses magnetic code cards or smart cards to implement self-service financial transactions, replacing the work of bank counters. Withdrawable cash. Query deposit balance, transfer funds between accounts, balance inquiry, etc .; also perform cash deposits, check deposits, passbook replacement registration, intermediate business, and other tasks. Hall plays the role of banknote thickness detection and recognition in the ATM. Use the induction between the Hall and the magnet to change the detection distance, so that an electric signal corresponding to the change is generated at the output end of the Hall, amplified by the Hall amplifier, and then sorted by the actuator to control the rapid Bank notes are sorted and identified. Latch Type Hall Sensor Hall sensors applied to bus doors The bus is a common means of transportation in our lives, and its appearance has facilitated people's travel. The Hall sen

Traditional current and voltage transformers are special transformers that measure the current and voltage by using the principle of electromagnetic induction.  China Hall Sensor  uses the principle of the Hall effect to measure electrical parameters such as voltage, current, power, frequency, impedance, or waveform. Combining with photoelectric technology and digital technology can realize digital control of electrical parameters, which is the future development direction. Hall current sensors can measure both DC and AC currents. Ordinary current transformers can only measure AC currents. Ordinary current transformers. When used, the secondary side cannot be opened and the Hall current sensor can be opened. The output voltage of the Hall current sensor is proportional to the magnitude of the current flowing through the primary side. The output polarity also changes when the direction of the current measurement changes. Therefore, AC and DC power can be measured, and there are no sp