- New Product Information -
|AK3101 / AK3102 / AK3103 / AK310H
Current Sensors > Ultra-low Noise Coreless Current Sensor
|Ultra-low Noise Coreless Current Sensor|
|Audio Systems, Industrial Motors|
AKM has developed ultra-low noise coreless current sensors for improving audio quality of large sized speakers such as subwoofers. The AK310x series is suitable for a system which controls voicecoil motion in speakers (Motional Feedback) by current feedback. This series can be used for controlling industrial motors, since it is certified to UL safety standards.
Although conventional current sensors had large noise, the AK310x series reduces the noise extremely to combine with a signal processing IC and an ultra-high sensitivity Hall element. It achieves the world’s best noise performance of -108dBm/√Hz. *
* According to AKM’s research as of the date of releasing this product.
The dumping factor of the speaker is almost unaffected because the AK310x series can measure the current with a 1.6mΩ impedance. This series is suitable for motional feedback system.
The AK310x series adopts an ultra-small coreless package, (D/W/H: 7.6 × 7.9 × 1.15mm).
It is certified to IEC/UL60950 and planned to be certified to IEC/UL1577, suitable for various industrial applications such as AC motors and general-purpose inverters.
|Product Name||Linear Sensing Range|