High gain, low distortion, faster switching transistor

Details High gain, low distortion, faster switching transistor High gain, low distortion, faster switching transistor

1993-03-22

1995-07-04

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Integrated circuits

330296, H03F 314

Patent

active

054304130

ABSTRACT:
A transistor in which the emitter terminal is coupled to ground through an electrolytic capacitor. The electrolytic capacitor has a capacitance of from about 0.2 .mu.f to about 100 .mu.f and can be connected either by itself or in parallel with a resistor, depending upon the circuit in which it is used. The incorporation of an electrolytic capacitor of such a capacitance level provides greatly improved gain and less distortion of the input signal, to permit a high output to be achieved in fewer amplifier stages and with less current draw and heating than in conventional transistor amplifier stage circuits. Additionally, the transistor can be provided in a unitary structure by incorporating the electrolytic capacitor directly on the transistor chip, and can also be provided by incorporating the transistor and a resistor within the casing of an electrolytic capacitor.

REFERENCES:
patent: 4331930 (1982-05-01), Shibata et al.
patent: 5196809 (1993-03-01), Fogal

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