发明名称 |
AC motor control |
摘要 |
An AC motor control circuit particularly suitable for motors having permanent magnet rotors, and stators which are supplied with AC current from an inverter. A current detection (33) detects the DC current input to the inverter (29) and produces an output signal which is supplied to a power factor calculation circuit (36). The output from this circuit is supplied to a voltage and frequency calculation circuit (38) whose output is in turn supplied to a drive circuit (38) which produces pulse-width-modulated drive signals for the transistors of the inverter (29). <IMAGE> |
申请公布号 |
EP0629038(B1) |
申请公布日期 |
1997.10.08 |
申请号 |
EP19940202372 |
申请日期 |
1990.11.09 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
NAKAMURA, YOSHINOBU;MOCHIKAWA, HIROSHI |
分类号 |
H02P27/06;H02P6/00;H02P23/00;H02P27/08 |
主分类号 |
H02P27/06 |
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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