发明名称 |
Speed control apparatus for d.c. motor |
摘要 |
A speed control apparatus for d.c. motor includes a bridge circuit formed by the motor and a plurality of resistors. A branch of the bridge circuit which is located opposite to a branch defined by the motor comprises a resistor circuit including a thermistor, thereby achieving a speed control having a reduced temperature dependency.
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申请公布号 |
US4475071(A) |
申请公布日期 |
1984.10.02 |
申请号 |
US19840498844 |
申请日期 |
1984.05.27 |
申请人 |
OLYMPUS OPTICAL CO., LTD. |
发明人 |
YOSHIZAWA, FUKASHI |
分类号 |
H02P7/285;(IPC1-7):G05B5/00 |
主分类号 |
H02P7/285 |
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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