<p>A power factor control system for use with AC induction motors which samples line voltage and current through the motor and decreases power input to the motor proportional to the detected phase displacement between current and voltage to thereby provide less power to the motor, as it is less loaded.</p>
申请公布号
DE2730774(C2)
申请公布日期
1987.08.20
申请号
DE19772730774
申请日期
1977.07.07
申请人
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION, WASHINGTON, D.C., US
