| 发明名称 |
CONSTANT CURRENT SOURCE FOR FIELD CONTACT INPUT |
| 摘要 |
<p>A circuit acting as a constant current source comprises a transistor having an emitter to base junction forward biased by a voltage of from 24 to 125 volts DC. A 5.6 volt Zener diode is connected between the base and voltage supply and a light emitting diode is connected between the collector and a field contact. A substantially constant current supply is provided over the voltage range.</p> |
| 申请公布号 |
IN161474(B) |
申请公布日期 |
1987.12.12 |
| 申请号 |
IN1983CA96519 |
申请日期 |
1983.08.03 |
| 申请人 |
THE BABCOCK & WILCOX COMPANY |
发明人 |
POLINSKI LEONARD RALPH JR. |
| 分类号 |
H02J1/00;G05F1/38;G05F1/56;G05F3/18;H01H1/60;H02J1/04;H03K17/78;(IPC1-7):H05C1/00 |
主分类号 |
H02J1/00 |
| 代理机构 |
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| 地址 |
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