|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||363/163 ; 363/165|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 10 인용 특허 : 3|
When the input frequency is below a preselected value, an unrestricted frequency changer (UFC) is operated in the conventional manner by sequentially switching to more positive input phases while the fundamental component of the output waveform is positive going and to more negative input phases while it is negative going. Above the preselected input frequency, the UFC is operated in a complementary manner; that is, by switching to more negative input phases while the output waveform fundamental component is positive going and to more positive input phas...
A frequency changer for synthesizing an output line, an output waveform of a desired substantially constant frequency from segments of a multiphase input waveform of varying frequency comprising, a bidirectional switch connected between each phase of the input waveform and the output line; means for determining the frequency of the multiphase input waveform; means for generating timing waveforms phase locked to each phase of the input waveform; means for generating a reference waveform at a frequency equal to the fundamental frequency of the desired outp...