| 摘要 |
PURPOSE:To apply automatically automatic load control at a value being a ratio of prescribed rise and fall or over by providing an automatic load control voltage generating circuit activated only with the polarity of a DC component of a high frequency voltage proportional to the root of a power of reflected wave going backward from a feeder. CONSTITUTION:A high frequency voltage epsilonR proportional to the root of the power PR of reflected wave going backward from the feeder is obtained at other output terminal of a current transformer. A DC output ER is obtained by rectifying the voltage by means of diodes D1, D2. The automatic load control is applied automatically at a ratio S of rise and fall of a prescribed signal wave or over by providing an automatic load control (ALC) voltage generating circuit X activated only at the polarity of the DC output ER and the more the ratio of rise to fall is increased, the more the automatic load control becomes effective, thereby decreasing the output.
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