Magnetic sensor: the giant behind the future sensing technology

In the automotive industry, magnetic sensors are an essential yet often overlooked technology that enables everything from turn signals to precise ignition timing. These tiny components play a crucial role in ensuring your vehicle runs smoothly and safely. In fact, a modern car can contain up to 70 magnetic sensors, each silently contributing to the seamless operation of various systems. "As with many semiconductor devices that keep our daily lives running, magnetic sensors are invisible to the user, yet they are vital for many of the functions we rely on," said Ricky Jackson, a Process Development Manager. "They may not be seen, but their impact is felt every time you drive."  **Widespread Use** Magnetic sensors are small, cost-effective, and easy to integrate into other circuits, making them ideal for a wide range of applications. From robotics to home appliances, these sensors are everywhere. In industrial automation, magnetic sensors are especially valuable due to their high reliability and precision in detecting position and speed. This makes them essential for motion control in robotic arms and other automated systems, ensuring smooth and accurate movement. The result is a more efficient and safer production environment. Beyond cars, magnetic sensors are used in household appliances like washing machines and microwave ovens to detect whether doors are open or closed. In medical devices, they help hearing aids detect when a phone is nearby, switching to a mode that enhances call clarity. They are also used in elevators for floor detection and in mobile devices to determine if they're on or off. **How They Work** Magnetic sensors function by converting magnetic fields into electrical signals—voltage or current. Since they operate without physical contact, they reduce wear and tear in mechanical systems, which lowers maintenance costs. This non-contact operation also helps minimize environmental contamination in sensitive environments. There are several types of magnetic sensors, but two commonly used ones are Hall effect sensors and fluxgate sensors. Both are highly versatile and can be easily integrated into larger circuits. Hall effect sensors are known for their reliability in varying electromagnetic conditions. They are widely used in fuel gauges to detect the level of liquid in a tank and in brushless motors to monitor rotor position. Their integration into chip designs is straightforward, requiring no special materials or treatments, which keeps costs low. Fluxgate sensors, on the other hand, are more sensitive and capable of detecting even the smallest changes in a magnetic field. They are commonly found in electronic compasses for ships and aircraft, as well as in geological instruments used to map underground structures. **New Innovations** Texas Instruments (TI) is at the forefront of magnetic sensor development, offering a range of solutions that integrate Hall effect and fluxgate technologies. “We are working on a variety of magnetic induction technologies, integrating them into semiconductor processes to create new and innovative devices,” said Ross Eisenbeis, a system engineer at TI. For engineers looking to incorporate TI’s magnetic sensors into their designs, the company provides extensive support, including on-chip features, design tools, and software. Engineers can also engage with a community of professionals through forums, where they can share ideas and best practices. Online training programs further help users maximize the performance of TI’s sensors. “We’re continuously developing new technologies to help engineers meet their performance and cost goals more efficiently,” Ross added. “Our technical documentation is designed to be user-friendly, and our experts and IC designers are actively involved in advancing these innovations.”

Remote Controlled Sockets

REMOTE CONTROL SOCKET
Important Safeguards
When using any electrical appliance, in order to reduce the risk of fire, electric shock and/or injury to persons, basic safety precautions should always be follow8d. including:
• The appliance is for household and indoor use only.
• Before plugging in. check that the voitage on the rating label is the same as the mains supply.
• To protect against electric shock, do not immerse any part of the product in water or other liquid.
• This socket is intended for use by competent adults only and children should be supervised at all times.
• Do not use the socket for other than its intended use.
• This socket can be used by children aged from 8 years arxl above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not p<ay with the appliance Cleaning and user maintenance shall M be made by children without supervision.
• Children of less than 3 years should be kept away unless continuously supervised.
Children from 3 years and less than 8 years shall only switch on/off the appliance provided that it has been placed or installed in its intended normal operating position and they have been supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children aged from 3 years and less than 8 years shall not plug in. regulate and clean the appliance or perform user maintenance.
• Don't use this socket in the immediate surroundings of a bath, a shower or a swimming pool.
• In case of malfunction, do not try to repair the socket yourself, it may result in a fire hazard or electric shock
Do Not Exceed Maximum a680W
Place the LR44 batteries provided into the compartment in the back of the Remote Control, please insert as sho*/m in the back of the compartment to ensure the polarity is correct.

Programming Instructions
• Plug the Remoce Socket$($)lnto the wall socket(s) and switch on the mams supply, the red LED will flash every second.
• If the LED is not flashing press & hold the manual ON/OFF button for 5 seconds until it Hashes

•Press any ON switch on the Remote Control for approximately 2 seconds and the Remote Socket(s) learn the code. The LED will stop flashing top confirm the codehas been accepted.
• Any number of Remote Sockets can be programmed to one Remote Control ON button to create multiple switching.
• To programme o<her Remote Sockets on different Remote Control ON buttons repeat the prevous steps
• If the mains supply is turned off the Remote Sockets v/ill lose their code and it wil be necessary to re-pcogramme.
Operation:
• Plug your appliance(s) into the Remote Socket(s)
• Press the programmed ON or OFF button on the Remote Control to control the Remote Socket.
♦ The Remote Sockets can also be operated manually using its ON/OFF Button Trouble shooting
If a Remote Socket does not react to the Remote Control please check the followng:
♦ Low battery in tbo Remote Control
• Distance too large between the remote control and the recerver (ensure the range distance is no more than 20 clear Metres) and free from obstacle that may reduce the distance.
• If programming has not been successful, tum the power off and back on then follow the programming steps above.
How to decode
• Press the manual ONX)FF button for 5 seconds until the red LED flashes once per
second to confirm de-coding is successful
♦ Press the ALL OFF switch on the Remote Control for more than 3 seconds, the LED
flashes once per second to confirm (decoding successful.
Voltage: 240V-/50HZ
Max power rating: 3680W max.
Remote frequency:
Remote range:
Battery Type:
433.92MHz
230 Metres
Button Cell 2x1.5V LR44 =
Please check with your local waste management service authority regarding regulations for the safe disposal of the batteries. The batteries should never be placed G municipal waste.
Use a battery d^posal facility if available
M
For eioctncal products sold within the European Community. At the end of the electrical products useful life, it should not be disposed of wth household waste. Please recycle faaMies exist. Check with your Local Authonty or retailer for recycling advice.
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