| 摘要 |
<p>Disclosed is a power converter circuit which can suppress an overvoltage in a DC section and can generate a power supply for a control circuit. The power converter circuit (10) is provided with a relay (S), a diode group (16), a DC section (18), and an inverter (20) in this order from the power supply side. As a countermeasure against the overvoltage in the DC section (18), the DC section (18) is provided with an energy-absorbing circuit (28). In the energy-absorbing circuit (28), a diode (Ds), a resistor (Rs), and an electrolytic capacitor (Cs) are connected in series in this order from the side of a first power supply line (22). A rectifying circuit (30) is connected to the side further toward the alternating current power supply than the relay (S), and a voltage is applied to the electrolytic capacitor (Cs) with the rectifying circuit (30) therebetween.</p> |
