SELF-EXCITED VOLTAGE INVERTER (VERSIONS) Russian patent published in 2011 - IPC H02M7/48 

FIELD: electricity.

SUBSTANCE: in the proposed versions of the device, which contain rectifier, bridge single-phase converter made on semiconductor switches and anti-parallel diodes, active-inductive load and control system consisting of pulse generator and two identical control channels containing the shapers of control pulses, the outputs of which are connected to the appropriate inputs of semiconductor switches. Semiconductor switches Re provided on 2 transistors and 2 thyristors; pulse generator is provided with two opposite phase outputs, and shapers of control pulses with output signals of various duration in each control channel. As per the third and the fourth versions, the control member providing the control of output voltage of self-excited voltage inverter is introduced to the control system.

EFFECT: simplifying the device and control circuit and improving reliability of the device as a whole.

4 cl, 6 dwg