Balanced oscillator with constant emitter voltage level

Details Balanced oscillator with constant emitter voltage level Balanced oscillator with constant emitter voltage level

1985-11-21

1986-12-30

LaRoche, Eugene R.

Oscillators

Solid state active element oscillator

Transistors

332 16T, H03B 508, H03C 300

Patent

active

046331956

ABSTRACT:
A balanced LC oscillator for providing differential oscillator output signals includes a pair of transistors the emitters of which are connected to a voltage reference source that provides a fixed voltage thereto. The base electrodes of each transistor is cross coupled to the collector of the other transistor. The LC tank circuit is connected between the collectors of the two transistors and current supply is provided thereto. Although the potential at the bases of the two transistors vary with respect to the oscillator signal appearing thereat, the emitters are held at a fixed potential to eliminate any common mode signal that may otherwise be generated if the potential at the emitters was permitted to vary.

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