测量空载电流。
Consequently, no load current flows through R6 because Q2, whose base-emitter voltage is now 0v, has turned off.
由于Q2的基极-发射极的电压为0 V而截止，因此没有负载电流流过r6。
The average of the line currents at rated voltage is the no-load current.
额定电压下线路电流的平均值即是空载电流。
The average of the line currents at rated voltage is the no-load current.
额定电压下线路电流的平均值即是空载电流。
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