OPTICAL SIGNAL TRANSMITTING/RECEIVING DEVICE AND POWER CONVERSION DEVICE

To provide an optical signal transmitting/receiving device and a power conversion device that can transmit and receive multiple signals with different frequencies in a simpler configuration.SOLUTION: An optical signal transmitting/receiving device includes: an optical transmitting unit that transmits an optical signal; an optical receiving unit that is connected to the optical transmitting unit through an optical transmission line, receives the optical signal, and converts it into an electrical signal with a magnitude corresponding to an amount of light emitted by the optical signal, thereby outputting a reception signal of the electrical signal; a light emission control unit that receives inputs of a first input signal having a predetermined frequency and a second input signal having a lower frequency than the first input signal, generates a superimposed signal in which the second input signal is superimposed on the first input signal, and inputs the superimposed signal to the optical transmitting unit to cause the optical transmitting unit to transmit an optical signal corresponding to the superimposed signal; and a light-receiving control unit that generates a first restoration signal according to the first input signal and a second restoration signal according to the second input signal based on the received signal output from the optical receiving unit.SELECTED DRAWING: Figure 1 【課題】より簡単な構成で周波数の異なる複数の信号を送受できる光信号送受信装置及び電力変換装置を提供する。【解決手段】光信号の送信を行う光送信部と、光伝送路を介して光送信部と接続され、光信号を受信し、光信号の発光量に応じた大きさの電気信号に変換することにより、電気信号の受信信号を出力する光受信部と、所定の周波数を有する第１入力信号と、第１入力信号よりも低い周波数を有する第２入力信号と、の入力を受け、第１入力信号に第２入力信号を重畳させた重畳信号を生成し、重畳信号を光送信部に入力することにより、重畳信号に応じた光信号を光送信部に送信させる発光制御部と、光受信部から出力された受信信号を基に、第１入力信号に応じた第１復元信号と、第２入力信号に応じた第２復元信号と、を生成する受光制御部と、を備えた光信号送受信装置が提供される。【選択図】図１