SERVO DRIVER

To provide a servo driver that suppresses increase in a size and can increase charge capacity for regenerative energy.SOLUTION: The present servo driver comprises: a converter unit that converts an AC voltage input thereto into a DC voltage and outputs the DC voltage; and an inverter unit that recei...

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Bibliographic Details
Main Authors NAKAJIMA KENJI, TAKEDA GO
Format Patent
LanguageEnglish
Japanese
Published 16.10.2023
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Summary:To provide a servo driver that suppresses increase in a size and can increase charge capacity for regenerative energy.SOLUTION: The present servo driver comprises: a converter unit that converts an AC voltage input thereto into a DC voltage and outputs the DC voltage; and an inverter unit that receives the DC voltage from the converter unit and supplies a driving current to a motor. The converter unit includes a power storage unit that stores regenerative power input from the motor in a regeneration state, and that performs discharge when the voltage of the power storage unit becomes equal to or more than a first DC voltage due to the storage of the regenerative power, and the converter unit outputs, to the inverter unit, the DC voltage at a second DC voltage lower than a rated voltage of the inverter unit.SELECTED DRAWING: Figure 1 【課題】大型化を抑制するとともに、回生エネルギーの充電容量を増加可能なサーボドライバを提供する。【解決手段】本サーボドライバは、入力された交流電圧を直流電圧に変換して出力するコンバータ部と、上記コンバータ部からの上記直流電圧を受けて、モータに駆動電流を供給するインバータ部と、を備える。上記コンバータ部は、回生状態の上記モータから入力される回生電力を蓄電する蓄電部であって、上記回生電力を蓄電したことで上記蓄電部の電圧が第1の直流電圧以上となると放電する蓄電部を含み、上記直流電圧を上記インバータ部の定格電圧よりも低い第2の直流電圧で上記インバータ部に出力する。【選択図】図1
Bibliography:Application Number: JP20220062014