Transistor oscillator circuit

Details Transistor oscillator circuit Transistor oscillator circuit

1981-10-21

1984-10-23

Bookbinder, Marc E.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

331109, 455333, H04B 126, H03B 512

Patent

active

044792590

ABSTRACT:
Transistor oscillator circuit having a resonant-circuit or crystal-controlled oscillator realized by a feedback differential amplifier and provided for driving a mixture stage including a pair of transistors forming the oscillator and having a current-carrying output connected to a respective input of the mixture stage, the latter being of symmetrical construction, a low pass filter also connected to the current carrying output of the oscillator, a common control amplifier having an output, and respective inputs connected to the oscillator via the low pass filter, and means for feeding back the output of the control amplifier to the oscillator in the sense of negative feedback.

REFERENCES:
patent: 3325747 (1967-06-01), Schrecongost
patent: 3775702 (1973-11-01), Wallace
patent: 4058771 (1977-11-01), Ohsawa et al.
patent: 4268916 (1981-05-01), Kusakabe
Ing. Gunther Pletz, German Publication "Funkschau" (1971), No. 15, pp. 465 and 466.

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