TIDA-00191
具有強化電流範圍的馬達電子過載繼電器的模擬前端
TIDA-00191
概覽
This reference design is the analog front end (AFE) for an electronic overload relay, used for monitoring and protecting motors from overcurrent or undercurrent events. It is an ideal tool for developers creating overload relays for sensitive AC motors in industrial applications. This programmable gain amplifier (PGA) based analog front end is intended to be an easy evaluation platform for an accurate, industry-leading 10:1 full load ampere (FLA) range and is repeatable over a -10 to +70°C temperature range.
特點
- Wide FLA of 10:1 which dramatically reduces the number of units required on-hand
- Current measurement accuracies of <2% over entire 10:1 measurement range from no load to locked rotor current
- Ambient insensitivity from -10 to +70°C
- Robust design that prevents phase reversal in overdrive conditions and high electrostatic discharge (ESD) protection (3-kV HBM)
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 | Analog Front End for Motor Electronic Overload Relays Design Guid | 2014/3/21 |