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    • 45. 发明专利
    • ELECTROMAGNETIC CONVERTER
    • JPH0318003A
    • 1991-01-25
    • JP15326989
    • 1989-06-14
    • NIPPON TELEGRAPH & TELEPHONETDK CORP
    • YANO NORIOKAWAKITA TATSUJIROSHIMOZAWA KIYOSHI
    • H01F19/00
    • PURPOSE:To make the attenuating amount in operation low and to divide and synthesize signals by providing a plurality of input filter means, a transformer means and output filter means, and transmitting the output signals from the output filter means through a common transmitting path. CONSTITUTION:A plurality of input filter means 5-7 are arranged on branched transmitting paths 12-14 which are branched from a common transmitting path 24 and pass each AC signal for every frequency. A single transformer means 11 is provided. A plurality of output filter means 8-10 are arranged on branched transmitting paths 26-28 and pass AC signals comprising the different frequencies. At this time, a plurality of the signals which are transmitted through the common transmitting path 24 are divided into the signals comprising respective frequencies through the input filter means 5-7 which are arranged on the branched transmitting paths 12-14. Therefore, even if the single transformer is used, the number of turns of winding and the frequency of each transmitting signal can be individually adjusted. In this way, the attenuating amount in operation is made low, and the frequencies can be synthesized and divided.