发明名称 Frequency insensitive digital phase angle measuring circuit
摘要 The problem of stabilizing operation of a load division control (74) is resolved using a phase angle counter circuit (90) which calculates phase angle insensitive to frequency changes of the output voltage waveform. The phase angle counter circuit (90) includes a series of counters (94, 96, 100 and 102) for calculating phase angle.
申请公布号 US5019718(A) 申请公布日期 1991.05.28
申请号 US19890438793 申请日期 1989.11.20
申请人 SUNDSTRAND CORPORATION 发明人 FOSTER, JOSEPH;RASHID, ABDUL
分类号 H02P9/30 主分类号 H02P9/30
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