| 摘要 |
PROBLEM TO BE SOLVED: To provide an inrush current suppression circuit for suppressing increase in power consumption of the circuit.SOLUTION: An inrush current suppression circuit 101 comprises a current-limiting unit, a bypass unit, a rectification unit, and a conduction signal output unit. The current-limiting unit is composed of a resistance R21. The bypass unit is composed of thyristors S1 and S2 which have forward current directions reverse to each other toward an AC power supply 300 and are connected in parallel with each other together with the resistance R21. The rectification unit is composed of a rectification element D1 and a rectification element D11. The conduction signal output unit is composed of a first conduction signal output unit 11 which is connected to the output side of the rectification element D1 and outputs a first conduction signal to the thyristor S1 with a delay after turning on the AC power supply 300, and a second conduction signal output unit 12 which is connected to the output side of the rectification element D11 and outputs a second conduction signal to the thyristor S2 with a delay after turning on the AC power supply 300. |
