Current-controlled oscillator

Details Current-controlled oscillator Current-controlled oscillator

1978-04-07

1979-04-03

Kominski, John

Oscillators

Solid state active element oscillator

Transistors

331108A, H03K 3282

Patent

active

041479963

ABSTRACT:
A pulsing oscillator employs a capacitor that is charged through a diode from a current-source circuit and repeatedly discharges through a PNP and an NPN transistor when the capacitor voltage reaches a predetermined voltage. Another transistor is connected in shunt with a diode and capacitor, and is turned on only when the first mentioned transistors turn on so as to divert the frequency controlling current from the current source away from the capacitor during the time of discharge. The output pulse width remains constant for all values of control current and large control currents may be used without risking the "latching-on" by large control currents of the transistors intended to carry the discharge current from the capacitor.

REFERENCES:
patent: 3718870 (1973-02-01), Keller
patent: 3886485 (1975-05-01), Takahashi
patent: 4001723 (1977-01-01), Sheng

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