| 摘要 |
PROBLEM TO BE SOLVED: To provide an inrush current prevention circuit capable of achieving a short starting time and a small circuit scale.SOLUTION: An inrush current prevention circuit 50 that prevents an inrush current into a power supply circuit 2, includes: a capacitor bank 3 connected in parallel to the power supply circuit 2; a current limit resistor 5 for limiting a charge current into the capacitor bank 3 from a primary power supply 40; and a diode 6 provided in series between the current limit resistor 5 and the power supply circuit 2 and connected with a direction toward the power supply circuit 2 from the capacitor bank 3 as a forward direction.SELECTED DRAWING: Figure 1 |
