| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical receiver which stably performs detection of signal interruption without erroneous detection. <P>SOLUTION: The optical receiver includes, a photoelectric conversion circuit for converting an optical input signal into an electrical signal, an AC to DC signal conversion circuit for converting the electrical signal to a DC signal, a high voltage generating circuit for supplying a voltage to the photoelectric conversion circuit, and a current sink circuit for drawing part of the output current of the high voltage generating circuit. Then, the current sink circuit increases the current drawn from the output current of the high voltage generating circuit as the output signal of the AC to DC signal conversion circuit decreases. <P>COPYRIGHT: (C)2010,JPO&INPIT |
