发明名称 |
CURRENT CHARACTERISTIC SHAPING CIRCUIT |
摘要 |
<p>First (Q1) and second (Q5) transistor current sources of complementary conductivity types are connected in series with an output connection (21) between them in the series connection. Input signals control the conduction level of one of the sources so that it diverts correspondingly variable amounts of current of the other source away from the output connection in accordance with a first linear characteristic. Additional transistor current source circuits (Q2, Q6) are provided, and responsive to a predetermined level of the same input signals, for diverting substantially different amounts of current away from the output connection in accordance with a second linear characteristic of different slope from the first characteristic.</p> |
申请公布号 |
JPS6135058(A) |
申请公布日期 |
1986.02.19 |
申请号 |
JP19850146875 |
申请日期 |
1985.07.05 |
申请人 |
AMERICAN TELEPH & TELEGR CO <ATT> |
发明人 |
JIEEMUSU TSURIIDO GUROTSUCHI |
分类号 |
H03F3/30;H03F3/34;H03F3/343;H04M19/00 |
主分类号 |
H03F3/30 |
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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