发明名称 |
Mains-voltage discrimination device |
摘要 |
A supply-voltage discrimination device for adapting a load (8) to a lower or higher alternating-voltage range includes a voltage-dependent resistor (1) thermally coupled to a PTC-resistor (2) and electrically connected in series with said voltage-dependent resistor. The resistors are chosen so that initially the dissipation is mainly determined by the voltage-dependent resistor. |
申请公布号 |
US4546305(A) |
申请公布日期 |
1985.10.08 |
申请号 |
US19830508960 |
申请日期 |
1983.06.29 |
申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
GODDIJN, DECEASED, BERNARDUS H. A.;DE HAAN, ADMINISTRATOR, BY FRIEDRICH J. |
分类号 |
G05F1/14;H02H11/00;H02P4/00;(IPC1-7):G05F5/00 |
主分类号 |
G05F1/14 |
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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