CIRCUIT BOARD AND DISCHARGE LAMP LIGHTING DEVICE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a circuit board having a simple device configuration, which facilitates detecting the temperature of a self-supporting component with high accuracy.SOLUTION: The circuit board includes a wiring board 1 having a wiring pattern 5, a temperature detecting element 3 which detects the temperature of a heating component 2 mounted on the wiring board 1, and the heating component 2 placed on the wiring pattern 5. The wiring pattern 5 makes up a heat conductive pattern 4 that transfers heat from at least one lead terminal 2a of the heating component 2 to the vicinity of the temperature detecting element 3.