| 摘要 |
<P>PROBLEM TO BE SOLVED: To perform effectively power supply to an internal circuit and a converter utilizing a power supply voltage supplied from a terminal side and a generated power from power generation equipment, in a broadcast signal amplifier which mixes a terrestrial reception signal and an intermediate frequency signal from the converter for satellite broadcast reception and outputs it to the terminal side. <P>SOLUTION: In an amplifier 10, two power generation panels 24, 25 are provided, when a power supply voltage (9 V) for a first amplifying circuit drive is supplied from a power supply 30 of the terminal side, the power generation panels 24, 25 are connected in parallel to perform power supply only to a first amplifying circuit 12 to amplify a UHF signal (TR1:off). Moreover, when the power supply voltage (15 V) for converter drive is supplied from a receiver 8 of the terminal side, the power generation panels 24, 25 are connected in series to perform the power supply also to a second amplifying circuit 14 to amplify a BS/CS-IF signal and a converter 5 (TR1:on). <P>COPYRIGHT: (C)2010,JPO&INPIT |
