TIDA-00368
具有差動 ADC/MCU 且適用於介接電流輸出霍爾感測器和 CT 的參考設計
TIDA-00368
概覽
This reference design provides interfacing current output Hall sensors and current transformers to differential ADC (standalone and integrated into MCU). The differential signal conditioning circuit is designed to measure motor current with an accuracy of ±0.5% across operating temperature range from -25°C to 75°C. The output common-mode voltage of the differential amplifier can be selected to either 1.25 V or 2.5 V.
特點
- On-board current-output Hall sensor to measure nominal current up to 25-A RMS
- Current measurement accuracy of 0.5%
- Common reference solution for interfacing both CT and current output hall sensor with pseudo-differential ADC/MCU
- Selectable output common-mode voltage for the differential amplifier
- Provision to evaluate with Delfino F2837x control card
- Provision to evaluate with external ADC (ADS8354) for interfacing with motor controller
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 | |||
|---|---|---|---|---|---|---|
| * | 設計指南 | Interfacing Current Output Hall Sensors (ADC/MCU) Design Guide (Rev. A) | 2015/8/25 |