| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electronic device that can reduce the power consumption of an electronic circuit, to provide its control method, and to provide an optical semiconductor module. <P>SOLUTION: The electronic device comprises a DC-DC converter (20) to which external power is inputted, and the electronic circuit (50) in which an output of the DC-DC converter (20) is inputted to a power supply input. A conversion voltage as the output of the DC-DC converter (20) is lower than a central value of a recommended operational condition of an voltage of the power supply input of the electronic circuit (50). There are also provided the control method of the device, and the optical semiconductor module. <P>COPYRIGHT: (C)2008,JPO&INPIT |
