| 摘要 |
A power converter circuit (10) includes a relay (S), a diode group (16), a DC section (18), and an inverter (20). To prevent overvoltage of the DC section (18), the DC section (18) includes an energy-absorbing circuit (28). In the energy-absorbing circuit (28), a diode (Ds), a resistor (Rs), and an electrolytic capacitor (Cs) are series-connected to one another in this order from a first power supply line (22). A rectifying circuit (30) is connected to a point located closer to the alternating-current power supply (12) than the relay (S) and a voltage is applied to the electrolytic capacitor (Cs) via the rectifying circuit (30). |
