SU76827A1 - Device for producing alternating voltage - Google Patents

Description

The subject of the invention is a device for obtaining variable lap-side of LR and assistance of a capacitor with a periodically changing capacitor connected to a constant-current source circuit.

A distinctive feature of the proposed device is the implementation of a capacitor rotor in the form of a disk (s) consisting of four sectors of the same shape. This provides a sinusoidal voltage.

On the fit. 1 shows a longitudinal section of the proposed device; in fig. 2 - the shape of its electrodes; in fig. 3 - principle, the scheme of its inclusion.

Between the two metal plates 1 of the stator, forming a capacitor, the rotor consisting of two half-disks 3-4, made of an insulating material with different dielectric constants, is built.

If, for example, paludisk 3 has a dielectric constant, equal to two, la half-disk 4 has a dielectric constant equal to eight, then during the rotation of the disk the capacitor capacitance will change in a ratio. IR 1: 4.

2

If a battery b is attached to the two metal plates of the stator, then in the battery circuit connected in series by a capacitor, as the rotor rotates, a charge and discharge current, i.e. an alternating current that can be applied to the load 7, flows. the required amount of current is needed instead of a single capacitor to use a battery of capacitors from many plates and disks located on the same axis 5.

To obtain a three-phase current, it is necessary on one o-oi to put three systems that are 120 ° apart.

Making a plate / stator in the form of a half disk and making a rotor 3-4 of the two halves having different dielectric constants does not provide for obtaining sinusoidal voltage, since the capacitor capacitance increases in proportion to the rotation of the rotor 3-4, and not in proportion to the sine of the rotation angle.

In order to obtain a sinusoidal voltage, it is necessary to select a certain shape of a PL-astin 3-4, in which the area overlaps