| 摘要 |
<P>PROBLEM TO BE SOLVED: To generate a satisfactory semiconductor laser driving signal even when the pulse width of pulsed light emitted from a semiconductor laser is small in particular. <P>SOLUTION: A semiconductor laser drive circuit is provided with a driving IC 4 and a substrate mounted with the IC 4. The IC 4 comprises; a switching element for generating the driving signal; a high potential power terminal 42 and a low potential power terminal 43 for supplying power voltage to the switching element; and a driving signal output terminal 44 for outputting the driving signal generated by the switching element to outside. The terminals 42 to 44 are arranged in a line at one side part of the main body 4a of the IC. The substrate has conductive parts 45 to 47 connected to the terminals 42 to 44. Chip capacitors 51 and 52 are arranged by the one side part of the IC 4 where the terminals 42 to 44 are arranged, and one end of the capacitor 51 and that of the capacitor 52 are connected to the terminal 42 and the other ends are connected to the terminal 43. <P>COPYRIGHT: (C)2004,JPO |
