发明名称 |
DC Motor phase control system |
摘要 |
A DC motor phase control system is provided in a system having a first controlled rectifier connected to an AC power supply and providing a positive rectified output and a second controlled rectifier providing a negative rectified output. A DC motor is controlled for forward and reverse rotation and is controlled in speed by the firing control of the rectifiers. The pulse indicating the zero point of the AC power supply voltage is delayed according to the actual speed of the motor and the delayed pulse is used as a reference pulse of the controlled firing pulses applied to the controlled rectifiers.
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申请公布号 |
US4088933(A) |
申请公布日期 |
1978.05.09 |
申请号 |
US19760711156 |
申请日期 |
1976.08.03 |
申请人 |
FUJITSU FANUC LIMITED |
发明人 |
HASHIMOTO, YOSHIHIRO;KAWADA, SHIGEKI;KOHARI, KATSUO;ISHIDA, HIROSHI |
分类号 |
H02P7/288;H02P7/00;H02P7/292;H02P7/295;(IPC1-7):H02P5/16 |
主分类号 |
H02P7/288 |
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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