| 摘要 |
PROBLEM TO BE SOLVED: To provide a control power supply device for an inverter.SOLUTION: A control power supply device for an inverter include a main SMPS 120 for supplying rated voltages to a controller section 14 and an auxiliary circuit section 15 of the inverter, an auxiliary SMPS 130 configured to be operated when operation of the main SMPS 120 is interrupted to supply the rated voltages to the controller section 14 and the auxiliary circuit section 15 of the inverter; and an SMPS controller section 140 configured to: sense an output voltage from the main SMPS 120; determine whether the sensed voltage sensed is within a normal range; when not within the normal range, interrupt the operation of the main SMPS 120 and operate the auxiliary SMPS 130; and transmit trip information to the controller section 14.SELECTED DRAWING: Figure 2 |
