Reed Sensors in Electric Car Chargers

Electrical cars are designed to have a range of 250-300 kilometers on a full charge. To ensure that the charging time is minimal, 16-32 Amps may be required for charging. For high current charging, it is very important that the mating of the contacts inside the connectors not only conform to requirements but also ensure that they provide a complete lock-in so charging problems don’t occur. To aid in good mating of connectors, reed sensors are built into the charging sockets of electric cars and a magnet is provided at the end of the charging cable. This ensures that a correct locking signal is passed on to the charging circuit to trigger start of the charging. These reed sensor(s) are constantly monitored during the charging to provide constant feed back to the charging circuit.

Application Classification

Applications are classified as Position Sensing, Pulse Counting, Electromagnetic or Relay, Temperature Sensing or Magnet Biasing types. This application is classified as follows and the link gives more information on best practices to help select the most suitable AT band and matching magnet.

Position sensing Type

Position Sensing type application When an application requires the end position of a movement sensed, or the sensing of a part when it Continue reading -> Nov 7, 2020

Recommended Products

The Reed Switches and Sensors used in such applications need to be robust, durable and efficient in meeting a high life expectancy. Our engineers work hard in life testing our products under various conditions, and our intention is to ensure end product durability and life. Although we wouldn’t want to restrict any of our products for use in only certain applications, the recommended products for use in this application are listed below.

R5 Ultra-Miniature SMD Reed Sensor

These SMD Ultra-Miniature Reed Sensors are designed for signal switching applications and have a size advantage over the standard size SMD Continue reading -> Jun 7, 2021

R4 Ultra-miniature SMD Reed Sensor

These R4 ultra-miniature SMD reed sensors are designed for signal switching applications and have a size advantage over the standard size Continue reading -> Jun 4, 2021

UM-0018-M Ultra Miniature Reed Switch

This highly sensitive, Form A type, UM-0018-M Ultra Miniature Reed Switches are designed for switching high speed signal loads with an Continue reading -> Nov 8, 2022

R3 Miniature SMD Reed Sensor

These miniature SMD reed sensors are designed for low power, high speed switching applications, and have a cost advantage over the Continue reading -> Jun 7, 2021