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公开(公告)号：FR1501330A
公开(公告)日：1967-11-10
申请号：FR06008148
申请日：1966-11-09
Applicant: IBM
Inventor： SEITZER DIETER , LUESCHER ROLF
Abstract: 1,106,839. Transistor amplifiers. INTERNATIONAL BUSINESS MACHINES CORPORATION. 24 Nov., 1966 [26 Nov., 1965], No. 52627/66. Heading H3T. In a differential amplifier comprising a transistor T1 having its base connected directly to a first input A and to a resistor Z for matching the first input to its signal source and its emitter connected by a resistor network R1, R2 to a second input A 1 arid to a voltage source, the resistor network R1, R2, R3 and R9 is arranged such that the second input A 1 is matched to its signal source and such that the current gains from the first input to the output at the collector and from the second input to the output at the collector are equal. As shown a further two similar amplifiers T2 and T3 are provided having two more inputs B, B 1 and an output taken from the collector D of the transistor T3. Transistor T3, which receives its inputs from the output of the transistors T1 and T2, may be replaced by a transistor of the NPN type and each differential amplifier or the complete circuit can be constructed in an integrated form. The differential amplifier, may be fed with pushpull input signals and the signal source may comprise a long transmission line.
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公开(公告)号：DE1487338A1
公开(公告)日：1969-04-10
申请号：DE1487338
申请日：1966-11-15
Applicant: IBM
Inventor： SEITZER DIETER , LUESCHER ROLF
Abstract: 1,106,839. Transistor amplifiers. INTERNATIONAL BUSINESS MACHINES CORPORATION. 24 Nov., 1966 [26 Nov., 1965], No. 52627/66. Heading H3T. In a differential amplifier comprising a transistor T1 having its base connected directly to a first input A and to a resistor Z for matching the first input to its signal source and its emitter connected by a resistor network R1, R2 to a second input A 1 arid to a voltage source, the resistor network R1, R2, R3 and R9 is arranged such that the second input A 1 is matched to its signal source and such that the current gains from the first input to the output at the collector and from the second input to the output at the collector are equal. As shown a further two similar amplifiers T2 and T3 are provided having two more inputs B, B 1 and an output taken from the collector D of the transistor T3. Transistor T3, which receives its inputs from the output of the transistors T1 and T2, may be replaced by a transistor of the NPN type and each differential amplifier or the complete circuit can be constructed in an integrated form. The differential amplifier, may be fed with pushpull input signals and the signal source may comprise a long transmission line.
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