发明名称 |
MATNINGSANORDNING FOR EN LINJEKRETS |
摘要 |
A supply arrangement for a subscriber's line circuit comprising a high frequency pulse source provided with switching means, controlled by a control generator for controlling the mark-space ratio of the high frequency pulse source. By the choice of the mark-space ratio, d.c. voltages of any desired level as well as a.c. voltages can be supplied to the subscriber's line. |
申请公布号 |
SE436314(B) |
申请公布日期 |
1984.11.26 |
申请号 |
SE19780007289 |
申请日期 |
1978.06.28 |
申请人 |
NV PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
K-D K * BROCKMANN |
分类号 |
H04Q3/72;H04M3/02;H04M19/00;(IPC1-7):04M19/00 |
主分类号 |
H04Q3/72 |
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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