The analysis of ways of regulation of tension is provided in article. The way of obtaining adjustable alternating voltage is shown. The device — the electronic converter, realizing such way means of the pulse equipment, allowing to reach essential reduction of mass-dimensional indicators of power supply units of various devices thanks to elimination of mechanical knots is described. The electronic converter on properties is close to the electric adjustable transformer, but to a galvanic outcome of windings, the entrance tension having a possibility of work in the wide range of frequencies with preservation of a form. The function chart of the electronic converter and an order of his work are submitted. Implementation of the schematic diagram is possible on the basis of a way of modulation of output tension high-frequency impulses with the changing porosity means of pulse electronics. Implementation of the schematic diagram is possible on the basis of a way of modulation of output tension high-frequency impulses with the changing porosity means of pulse electronics. Formulas for calculation of harmonious components of a number of Fourier at any representation are given by the modulated curve sequence of impulses and also calculation for various values of porosity is carried out. During the researches schedules of the first five harmonicas and a constant component and also a curve of addition of these harmonicas which form at the porosity equal to two, validates calculations are received. Are also presented an adjusting curve of average value of tension of the two-half-period single-phase rectifier depending on porosity of impulses and bending around amplitudes of harmonicas, initial phases of harmonicas, depending on their number. Elimination of high-frequency components demands installation of the corresponding filters. The modulation frequency is higher — the elimination of the harmonicas making a range at the converter exit is easier. Reduction of a phase corner with increase of harmonicas to the tenth, and then — again increase and recession up to the thirtieth harmonica is noted. Zero levels of initial phases are observed at the maximum values of amplitudes. The developed device belongs to converters of alternating voltage in variable the AC—AC, however similar transformation can be used in devices for obtaining alternating voltage from constant DC—AC and others in electroand radio engineering.