发明名称 |
INVERTER CONTROLLER, COMPRESSOR, AND ELECTRIC HOME APPLIANCE |
摘要 |
An inverter controller reduces a conduction angle of inverter circuit (204) within a range greater than 120 degree in electric angles when a time difference between intervals between each of position sensing and a total time of a time from an occurrence of a position sensing signal until the start of a commutation work to be done by inverter circuit (204) plus a time duration of a spike voltage becomes shorter than a predetermined reference time. This reduction of the conduction angle allows increasing a position sensible range, so that a position of magnetic poles of a rotor cannot be missed. The inverter controller thus can prevent a motor from falling into out-of-sync caused by a change in load or in voltage. |
申请公布号 |
EP2153516(A1) |
申请公布日期 |
2010.02.17 |
申请号 |
EP20090732315 |
申请日期 |
2009.04.16 |
申请人 |
PANASONIC CORPORATION |
发明人 |
OGAHARA HIDEHARU;KODA ATSUSHI |
分类号 |
H02P6/14;H02P6/18 |
主分类号 |
H02P6/14 |
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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