A power converter, comprising: a plurality of input ends (Pr, Ps, Pt); a first DC power supply line; a second DC power supply line to be applied with a potential lower than that of said first DC power supply line; a current-source converter including a plurality of switching devices (Trp, Tsp, Ttp) connected between each of at least two of said plurality of input ends (Pr, Ps, Pt) and said first DC power supply line and a plurality of switching devices (Tm, Tsn, Ttn) connected between said each of at least two of said plurality of input ends (Pr, Ps, Pt) and said second DC power supply line; a first diode provided between said first power supply line and said second DC power supply line with an anode thereof directed toward said first DC power supply line; a first capacitor provided in series with said first diode between said first power supply line and said second DC power supply line; a first resistor connected in series with said first capacitor and said first diode between said first power supply line and said second DC power supply line; a plurality of output ends (Pu, Pv, Pw) to be connected to an inductive load; a voltage-source inverter including a plurality of switching devices (Tup, Tvp, Twp) connected between each of said plurality of output ends and said first DC power supply line and a plurality of switching devices (Tun, Tvn, Twn) connected between each of said plurality of output ends and said second DC power supply line; characterized by a third switch connected with said first diode and said first resistor, the third switch comprising a first transistor and a second transistor; and a control section adapted to render said third switch conductive before rendering all said plurality of switching devices (Tup, Tvp, Twp, Tun, Tvn, Twn) of said voltage-source inverter non-conductive, wherein the first transistor is connected in anti-parallel with said first diode; the third switch further comprises a second diode connected in parallel with said first resistor with an anode thereof directed toward said second DC power supply line and a cathode thereof directed toward said first DC power supply line; and the second transistor is connected in anti-parallel with said second diode. a plurality of input ends (Pr, Ps, Pt); a first DC power supply line; a second DC power supply line to be applied with a potential lower than that of said first DC power supply line; a current-source converter including a plurality of switching devices (Trp, Tsp, Ttp) connected between each of at least two of said plurality of input ends (Pr, Ps, Pt) and said first DC power supply line and a plurality of switching devices (Tm, Tsn, Ttn) connected between said each of at least two of said plurality of input ends (Pr, Ps, Pt) and said second DC power supply line; a first diode provided between said first power supply line and said second DC power supply line with an anode thereof directed toward said first DC power supply line; a first capacitor provided in series with said first diode between said first power supply line and said second DC power supply line; a first resistor connected in series with said first capacitor and said first diode between said first power supply line and said second DC power supply line; a plurality of output ends (Pu, Pv, Pw) to be connected to an inductive load; a voltage-source inverter including a plurality of switching devices (Tup, Tvp, Twp) connected between each of said plurality of output ends and said first DC power supply line and a plurality of switching devices (Tun, Tvn, Twn) connected between each of said plurality of output ends and said second DC power supply line; characterized by a third switch connected with said first diode and said first resistor, the third switch comprising a first transistor and a second transistor; and a control section adapted to render said third switch conductive before rendering all said plurality of switching devices (Tup, Tvp, Twp, Tun, Tvn, Twn) of said voltage-source inverter non-conductive, wherein the first transistor is connected in anti-parallel with said first diode; the third switch further comprises a second diode connected in parallel with said first resistor with an anode thereof directed toward said second DC power supply line and a cathode thereof directed toward said first DC power supply line; and the second transistor is connected in anti-parallel with said second diode.