Circuit arrangement with controlled pinch resistors

Details Circuit arrangement with controlled pinch resistors Circuit arrangement with controlled pinch resistors

1994-06-23

1995-09-19

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Including combined diverse-type semiconductor device

330288, H03F 316

Patent

active

054519080

ABSTRACT:
According to the invention, a circuit arrangement includes at least two bipolar transistors, each having a base electrode, an emitter electrode and a collector electrode. The two transistors are connected together at their base electrodes and the base electrodes are connected to an auxiliary voltage. The collector electrodes are arranged to be first and second outputs of the circuit arrangement. An emitter resistor is connected to the emitter electrode of each transistor. Each emitter resistor is a pinch resistor having a gate electrode for controlling a resistance value of the respective emitter resistor. The gate electrodes of the respective pinch resistors are configured to be first and second inputs of the circuit arrangement.

REFERENCES:
patent: 4596958 (1986-06-01), Graeme et al.
patent: 4901031 (1990-02-01), Kalthoff et al.
patent: 4928073 (1990-05-01), Arai et al.
patent: 5168243 (1992-12-01), Feliz et al.
S. Akihiro, "Semiconductor Integrated Circuit", Patent Abstracts of Japan, JP4004610, vol. 16, No. 150, (1992).
S. Akihiro, "Differential Amplifier", Patent Abstracts of Japan, JP4150207, vol. 16, No. 429, (1992).
K. Kenji, "Constant Voltage Circuit", Patent Abstracts of Japan, JP5216549, vol. 17, No. 658, (1993).
K. Kenji, "Differential Amplifier Circuit", Patent Abstracts of Japan, JP5218763, vol. 17, No. 661, (1993).

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