| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an LED light source unit checker that facilitates its own normal operation confirmation and inspects the LED light source unit with enhanced reliability. <P>SOLUTION: An LED load checker 1 includes: a constant current source 2 formed so as to output a DC constant current from an output port 10; a pseudo resistor 3; a connection means 4 to connect an LED load 9 or the pseudo resistor 3 to between output ports 10a and 10b; a voltage detection means 5 to detect a forward voltage of the LED load 9 or a voltage between both ports of the pseudo resistor 3; an evaluation means 6 that performs evaluation by comparing a voltage value detected by the voltage detection means 5 and a preset reference value; and a display means 7 to display an evaluation result obtained by the evaluation means 6. <P>COPYRIGHT: (C)2013,JPO&INPIT |
