ES439278A1 - Improvements introduced in blocking oscillators intended to generate a sequence of oscillation trains. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improvements introduced in blocking oscillators intended to generate a sequence of oscillation trains, said blocking oscillators having an amplifying device equipped with a control element. A resonant circuit including an inductor and a tuning capability actively connected to said amplifying device, said oscillator also including a blocking capacitor connected to said resonant circuit to develop a control polarization; A device for applying said control polarization to said control element in order to stop said oscillations when the polarization reaches a certain value and to initiate said oscillations when said polarization reaches another value, said control capacitor charging in one direction while said oscillator it is oscillating and in the other direction when said oscillator is inactive to change said polarization; An insulation impedance connecting said blocking capacitor between said resonant circuit and said control element, whereby the intermittent activation and deactivation of the amplifying element prevents the intermittent direct connection and disconnection of said blocking capacitor through said circuit resonant, whereby the oscillations are concentrated in a narrow band of frequencies determined by said tuning capacitor and said inductance, substantially independently of said blocking capacitor. (Machine-translation by Google Translate, not legally binding)