本文旨在研究一個新型的電力電流微感測器傳輸介面，使得此新
型的傳輸介面可應用於本實驗室所設計之新型霍爾感測器上；利用數
位信號的優點，避免受到電力電流的干擾，且其數位傳輸介面需具備
隨時監測電力開關的高頻暫態能力與即時傳送高頻暫態資料給接收
端顯示。
本研究使用類比/數位轉換元件來轉換霍爾感測器的信號，將其
資料利用現場可規劃邏輯陣列(Field-Programmable Gate Array, FPGA )
做數位信號的處理並將資料傳送至接收端；於接收端做數位/類比轉
換後並利用擷取卡擷取信號於電腦顯示。此傳輸介面，依照
IEC60044-1 的規定；當其用於量測負載電流時，精確度等級可達到
0.5。用於量測故障電流時，即使量測到額定負載電流的100 倍，誤
差仍可維持在5%內。

This study investigates the transmission interface of a new power
current micro sensor to be applied to the new micro sensor designed by
our laboratory. The new micro sensor takes the advantage of digital
signals to avoid power current interference. The interface allows the new
micro sensor to monitor, send and receive high frequence transient state
signals produced by power switches.
This study uses an analog-to-digital converter to transform the Hall
signals produced by the micro sensor into digital data. These digital data
are processed by a field-programmable gate array and then sent to its
receiver to be transformed by a digital-to-analog converter into analog
signals. A DAQ card is then used to display them on a computer. The
interface designed in this research can satisfy class 0.5 level of
IEC6044-1 for load current measurements. For fault current
measurements, the interface can measure currents up to 100 times of rated
load currents and still stay within 5% acurracy.

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