Nanjing Ouzhuo Technology Co., Ltd

29/08/2025

Introducing OH44E / OH44EW Unipolar Hall Effect ICs – versatile magnetic sensors engineered for precise, noise‑immune switching. These devices integrate an on‑chip Hall voltage generator, amplifier and Schmitt trigger, enabling them to detect magnetic field changes and output clean digital signals. Key specs include a wide 4–30 V operating range, open‑collector output up to 50 mA, and reverse polarity protection, with stable performance across a broad temperature span
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Designed for durability and flexibility, OH44E/44EW sensors are ideal for brushless DC motors, fans, pumps, home appliance control panels, sewing and textile machinery, speed and position sensing, flow meters, auto‑ignition systems, safety alarms and other industrial control applications
komputer.de Available in compact package options, they bring robust non‑contact sensing to a wide array of products.

Explore how these unipolar Hall ICs can boost your next innovation and deliver cost efficiency.

17/09/2023

How does a hall sensor work?

A Hall sensor, based on the Hall Effect, is a device that detects the presence and strength of a magnetic field. Here's how it works:

Hall Effect Principle: When a current-carrying conductor is exposed to a magnetic field, it experiences a perpendicular force. This force pushes charged particles (usually electrons) to one side of the conductor, creating a voltage difference across it.

Semiconductor Material: Hall sensors are often made of semiconductor materials. These materials allow for precise control and measurement of the voltage generated by the Hall Effect.

Sensor Setup: The Hall sensor comprises a semiconductor chip with a current-carrying conductor and a voltage-measuring apparatus. When a magnetic field is applied perpendicular to the sensor's surface, it causes the voltage difference mentioned earlier.

Output Signal: The voltage generated by the Hall Effect is proportional to the strength of the magnetic field. This voltage is then amplified and processed to provide a digital or analog output, which can be used for various applications like position sensing, speed measurement, and current sensing.

Applications: Hall effect sensors find applications in a wide range of fields, including automotive (for speed and position sensing), industrial automation, robotics, and more due to their precision and reliability.

In summary, a Hall sensor operates on the Hall Effect principle, using a semiconductor material to detect and measure magnetic fields, providing valuable information for numerous applications.

17/09/2023

How a hall sensor works?
A Hall sensor, based on the Hall Effect, is a device that detects the presence and strength of a magnetic field. Here's how it works:

Hall Effect Principle: When a current-carrying conductor is exposed to a magnetic field, it experiences a perpendicular force. This force pushes charged particles (usually electrons) to one side of the conductor, creating a voltage difference across it.

Semiconductor Material: Hall sensors are often made of semiconductor materials. These materials allow for precise control and measurement of the voltage generated by the Hall Effect.

Sensor Setup: The Hall sensor consists of a semiconductor chip with a current-carrying conductor and a voltage measuring apparatus. When a magnetic field is applied perpendicular to the sensor's surface, it causes the voltage difference mentioned earlier.

Output Signal: The voltage generated by the Hall Effect is proportional to the strength of the magnetic field. This voltage is then amplified and processed to provide a digital or analog output, which can be used for various applications like position sensing, speed measurement, and current sensing.

Applications: Hall effect sensors find applications in a wide range of fields, including automotive (for speed and position sensing), industrial automation, robotics, and more due to their precision and reliability.

In summary, a Hall sensor operates on the Hall Effect principle, using a semiconductor material to detect and measure magnetic fields, providing valuable information for numerous applications.

11/02/2021

26/12/2019

Happy new year, a fresh start for all of us!

05/11/2019

What is a Hall effect sensor IC?

Hall effect sensor ICs is one kind of magnetic sensors based on HALL EFFECT, which was discovered in 1879 by American physicist E.H.Hall. Hall ICs usually work with permanent magnets and provide a reliable, cost-effective and space-consuming solutions for electric motor control, position detection, current detection, speed measurement, etc. They are widely used in the field of automotive, industrial, consumer electronics, medical, security, computer，portable devices, energy, etc.

Advantages:
Operate reliably in a wide range of electromagnetic environments
No mechanical contact
unaffected by the presence of dirt, dust, and moisture
easily be combined with circuitry for other operations

05/11/2019

Hall effect sensor IC