发明名称 |
Motor controller |
摘要 |
A motor controller capable of effectively utilizing electrical energy accumulated in a capacitor and achieving a reduction in capacitance of the capacitor. The motor controller includes a converter that receives an input AC voltage and performs AC-to-DC power conversion thereon, an inverter that receives DC power and performs DC-to-AC conversion thereon, and a capacitor and a charging/discharging control circuit connected in parallel with a DC link between the converter and the inverter. Electrical energy is supplied from the capacitor to the DC link via the charging/discharging control circuit. The charging/discharging control circuit has a circuit for discharging electrical energy accumulated in the capacitor and for stepping up a voltage of the capacitor when discharging the electrical energy. |
申请公布号 |
US8143836(B2) |
申请公布日期 |
2012.03.27 |
申请号 |
US20090364563 |
申请日期 |
2009.02.03 |
申请人 |
IWASHITA YASUSUKE;YAMADA YUUICHI;YAESHIMA MAMORU;SHIROUZU MASATOMO;SAKAI KOUJIROU;FANUC LTD |
发明人 |
IWASHITA YASUSUKE;YAMADA YUUICHI;YAESHIMA MAMORU;SHIROUZU MASATOMO;SAKAI KOUJIROU |
分类号 |
H02P27/04;H02P1/00;H02P3/14;H02P27/00 |
主分类号 |
H02P27/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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