Abstract: An ignition generator includes an energy source having a transformer, and a first circuit connected to a first secondary winding of the transformer. The first circuit includes a series connection of a first energy storage capacitor, an inductor and an ignition spark plug, and a free wheel diode connected in parallel to the inductor and the ignition spark plug. Circuitry is provided for shorting the first circuit to produce sparks between the electrodes of the spark plug. The generator further includes a second circuit which is electrically equivalent to the first circuit and which is connected to a second secondary winding of the transformer. The second circuit includes a second energy storage capacitor and impedance means connected in series. A comparator is provided for comparing the voltage of the second voltage energy storage capacitor with a reference voltage. Shorting of the first circuit is carried out according to an output of the comparator.

Abstract: This high-energy ignition generator, especially for gas-turbines, of the type including an energy source (1) connected to a first circuit containing an energy storage capacitor (10), an inductor (11) and an ignition plug (12), in series, a free-wheel diode (15) being connected in parallel with the terminals of the inductor (11) and the ignition plug (12) and means of short-circuiting (16) the first circuit so as to generate sparks between the electrodes of the plug (12), is characterized in that the means of short-circuiting (16) include at least one semi-conductor switching device (17,18) controlled by means of comparison (32) of the voltage at the terminals of the storage capacitor (10) with a first reference voltage, and in that means of control (2,3,4,7; 39,40,41) of the charge of the capacitor (10) at a first rate during an initial period of time and at a second rate during a second period of time, the second rate being higher than the first, are interposed between the energy source (1) and the first cir