ES325832A1 - A circuit provision to correct the deviation of a cathode ray tube. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

A circuit arrangement for correcting the deflection of a cathode ray tube, particularly a television picture tube, by transducer transmission of a first correction amount from a first deviation circuit, namely a line deviation circuit, to a second deflection circuit namely a deflection circuit of picture frames and a second correction amount of the second to the first deflection circuit, the working winding of a transducer that supplies the second correction amount arranged in the first circuit of comparatively high frequency deviation and the control winding of said transducer being disposed in the second deviation circuit, a converter member constructed as capacitance to said control winding being connected as described in Spanish patent application 318,963, characterized in that the winding inductance of control that or However, a low magnetic flux density in the outermost branches is adapted to the capacitor so that the voltage across the capacitor increases approximately sinusoidally with time (t) from the half of the line going period (to) to a moment of transition (t) dependent on the deflection current of frames whose instant is at an average generating angle of at least 50º to a maximum of 70º of said dinusoidal curve, and because, from the time of transition (t1) said voltage decreases approximately cosinoidally in an oscillating circuit which at a high magnetic flux density of the outermost branches for the active self-inductance of the working winding is magnetically formed by the control winding with said capacitor and which is tuned so that at an average value of the deflection current of frames are traveled approximately 90º of a cosine oscillation having dich or voltage a form due to the transducer's symmetrical extractor which, from the center of the line return period to the next half (to) of the line return period, is the same as the form already described but of opposite polarity. (Machine-translation by Google Translate, not legally binding)