发明名称 |
Apparatus and method of suppressing low speed ripple current of a single-phase inverter |
摘要 |
An apparatus and method to suppress a low speed ripple current to a motor include a power supply unit to supply single-phase alternating current (AC) power. A rectifying and smoothing unit rectifies and smoothes the single-phase AC power and outputs a direct current (DC) voltage indicative thereof. An inverter receives and converts the DC voltage to a motor driving current to drive the motor. A controller compares an envelope detected from a ripple current in the motor driving current and a DC component extracted from the ripple current and generates a compared result therefrom, and controls an output voltage from the inverter according to the compared result.
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申请公布号 |
US6690587(B2) |
申请公布日期 |
2004.02.10 |
申请号 |
US20020156179 |
申请日期 |
2002.05.29 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
HUR KYEON;LEE SANG-HOON;PARK MIN-HYUN |
分类号 |
H02M5/458;H02M7/48;H02P6/10;H02P27/06;(IPC1-7):H02M1/12;H02P7/36 |
主分类号 |
H02M5/458 |
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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