TIDA-00218
使用霍爾感測器之非接觸式 AC 電流感測
TIDA-00218
概覽
This reference design uses our hall sensing technology to determine the amount of AC current flowing through a wire without any physical intervention. TIDA-00218 implements a flux concentrator to concentrate the flux around the AC-current carrying wire, rather than letting it escape in air, and then directing that flux to a hall sensor.
特點
- Contactless proximity current sensing for AC and 3-phase input currents
- Maximum measured error less than 5% from 1-A to 10-A rms
- Flux concentrator as described in this design improves the magnetic flux density by a factor of six (15 dB)
- Only single-point gain correction at maximum current range; second-order curve fit implemented in firmware
- Maximum current that is sensed can be adapted by changing the flux concentrator design
工業
已開發完全組裝的電路板，僅供測試與性能驗證，且為非賣品。
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| 類型 | 標題 | 下載最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| 使用指南 | Contactless AC-Current Sensing Using a Hall Effect Sensor Reference Design (Rev. A) | 2015/2/25 |