About Our
Products
Overcharge protection for power tools, garden tools, and cleaners | Case studies of Secondary protection fuse implementation
- Protects batteries and circuits in power tools, garden tools, and cleaners
- In recent years, lithium-ion batteries have become commonplace in power tools (electric tools), garden tools, and cleaners, which are increasingly producing higher output and higher voltage.
As lithium-ion batteries become larger in capacity, the importance of ensuring safety in the event of malfunctions is also increasing. Dexerials' Secondary protection fuse have a secondary protection function that physically shuts off the circuit when abnormalities such as overcharging or overcurrent occur, contributing to improved safety of lithium-ion batteries.
View information about this product
Application
Ensuring safety when abnormalities occur in the charging/discharging circuit
Devices equipped with batteries have a mechanism that disconnects the battery from the charging/discharging circuit and stops charging/discharging if an abnormality occurs in the battery voltage or load current due to an impact such as being dropped or being exposed to high temperatures, thereby preventing accidents in the event of an abnormality.
Supports fast charging
Dexerials fuses are low-resistance secondary protection elements that can handle low-resistance power lines, supporting the development of power tools that require safe, rapid charging.
Compatible with high-voltage power tools, garden tools, and cleaner batteries.
Dexerials fuses, with their extensive lineup and proven track record and expertise in handling various charge and discharge circuits, help you realize high-voltage power tools.
Product characteristics
A heater is built into the element, allowing for arbitrary shutoff.
When the secondary protection IC detects an abnormality such as overcharging, it provides a "secondary protection" function that generates heat from the built-in heater and actively melts the fuse element to physically cut off the circuit.
Irreversible circuit interruption due to physical interruption
When an abnormality first appears, the circuit is physically cut off, preventing the battery from recovering once it has been compromised.
Compact and lightweight for automatic mounting
Dexerials fuses offer greater design flexibility for battery management systems (BMS) in power tools, garden tools, and cleaners where components must be mounted within limited space.
Product information
Optical Semiconductor
