发明名称 |
Signal amplifying circuit |
摘要 |
A signal amplifying circuit including an amplifying transistor having its base-emitter terminals connected to a signal source. A diode having the proper characteristics is also connected across the base-emitter input terminals to produce a first reference bias voltage to be applied to the input circuit of the transistor. The emitter-collector circuit of a compensating transistor is connected in series with the emitter-collector circuit of the amplifying transistor, and a second reference bias voltage is connected between the base of the compensating transistor and the emitter of the amplifying transistor. The second reference bias voltage is produced across a plurality of diodes having the proper characteristics, whereby the current gain of the amplifier will be constant regardless of variations in the transistor characteristics.
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申请公布号 |
US4021749(A) |
申请公布日期 |
1977.05.03 |
申请号 |
US19750547583 |
申请日期 |
1975.02.06 |
申请人 |
SONY CORPORATION |
发明人 |
ISHIGAKI, YOSHIO;HONGU, MASAYUKI;OKADA, TAKASHI |
分类号 |
H03G3/10;H03F1/22;H03F1/30;H03F3/34;H03F3/343;H03F3/347;H03F3/45;H03G1/00;(IPC1-7):H03F3/04 |
主分类号 |
H03G3/10 |
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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