发明名称 |
Signal separation circuit |
摘要 |
A signal separation circuit for separating direct current power on a telephone with a transistor. A CPU, which includes an A/D converter, is connected to detect the emitter-collector voltage of the transistor, and to control the base current of the transistor to maintain the emitter-collector voltage constant.
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申请公布号 |
US5367447(A) |
申请公布日期 |
1994.11.22 |
申请号 |
US19930070593 |
申请日期 |
1993.06.01 |
申请人 |
MURATA MFG. CO., LTD. |
发明人 |
SAKURAGI, SATOSI;KURODA, TAKASHI |
分类号 |
H04M19/08;H02M3/335;H02M3/337;(IPC1-7):H02M1/14 |
主分类号 |
H04M19/08 |
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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