To provide a power line communication device that is low in loss and capable of reducing component costs.SOLUTION: A power line communication device includes: a direct current power supply device 1; a power line 10; and a master station 2 that modulates supply voltage VBUS supplied to the power line 10 according to transmission data to be transmitted. The master station 2 includes: a modulation capacitor 8 charged by modulation amplitude voltage in advance; a polarization switching unit 7 that determines the polarity of the modulation capacitor 8 connected to the power line 10 according to the transmission data; and an inductor 9 connected between the direct current power supply device 1 and the power line 10.SELECTED DRAWING: Figure 1
【課題】低損失で部品コストを抑制することが可能な電力線通信装置を提供する。【解決手段】電力線通信装置は、直流電源装置1と、電力線10と、電力線10へ供給される供給電圧VBUSを、送信すべき送信データに従って変調する親局2とを備える。親局2は、変調振幅電圧で予め充電された変調用キャパシタ8と、送信データに従って、電力線10に接続される変調用キャパシタ8の極性を定める極性切替スイッチ部7と、直流電源装置1と電力線10との間に接続されたインダクタ9とを備えている。【選択図】図1
POWER LINE COMMUNICATION DEVICE, ON-VEHICLE DEVICE, AND ON-VEHICLE SYSTEM
電力線通信装置、車載装置および車載システム
2019-07-25
Patent
Electronic Resource
Japanese
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