发明名称 |
Förfarande och anordning för att förkorta en linjedrivares återhämtningstid |
摘要 |
To shorten the recovery time of a line driver (1) after an overvoltage on its output terminal (3), a current generating device (5) senses a voltage difference between the output voltage of the line driver (1) and its supply voltage (UB) plus a threshold voltage (UT'), and supplies a current (I) that is proportional to the sensed voltage difference up to a maximum current to the output (3) of the line driver (1) to raise its potential to thereby shorten its recovery time. |
申请公布号 |
SE9903116(L) |
申请公布日期 |
2001.03.04 |
申请号 |
SE19990003116 |
申请日期 |
1999.09.03 |
申请人 |
ERICSSON TELEFON AB L M |
发明人 |
JOHANSSON HANS;LUNDIN ULF |
分类号 |
H04M19/00;H04M3/00;H04M3/18;(IPC1-7):H04M19/00 |
主分类号 |
H04M19/00 |
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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