Amplifiers – Modulator-demodulator-type amplifier
Patent
1975-09-29
1977-05-03
Mullins, James B.
Amplifiers
Modulator-demodulator-type amplifier
330 15, 330 17, 330 18, 330 19, 330 20, 330 28, 330 35, H03F 3185
Patent
active
040217477
ABSTRACT:
A signal amplifier circuit includes at least one pair of complementary junction field effect transistors serially connected in a source-to-source relationship between first and second power supply source terminals. In order to apply a reverse bias between the gate and source in each of the paired transistors, the gate bias potential of one of the paired transistors can be selected between a potential on the first power supply terminal and a potential of the commonly connected sources of the transistor pair, and the gate bias potential of the other transistor be selected between a potential at the second power supply terminal and the potential of the commonly connected sources of the transistor pair. According to this invention, direct coupling can be easily effected between amplifier stages using a common power supply source.
REFERENCES:
patent: 3024422 (1962-03-01), Jansson
patent: 3163827 (1964-12-01), Kandiah
patent: 3663888 (1972-05-01), Greene
patent: 3862367 (1975-01-01), Kond et al.
Mullins James B.
Tokyo Shibaura Electric Co. Ltd.
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