| 摘要 |
PURPOSE:To reduce the harmonic wave current of a power source side by providing a circuit for absorbing the harmonic wave current generated by the operation of an AC/DC converter in parallel with an overvoltage absorber. CONSTITUTION:A compensator CP is used to suppress a harmonic wave current of a power source side generated by a resonance phenomenon. The relationship between the capacitor C and the inductance L of the compensator is selected to match the resonance frequency f0 of the inductance Lu of the power source and the capacitor Cu for absorbing an overvoltage, and when a resistor R is regulated optimally, the harmonic wave current of the frequency f0 can be absorbed. As a result, the harmonic wave current generated at the power source current can be suppressed by the resonance phenomenon of the inductances Lu-Lw of the power source side and the capacitors Cu-Cw for absorbing the overcurrent. |
