METHOD OF CURRENT REGULATION AT OUTPUT OF BRIDGE TRANSISTOR INVERTER Russian patent published in 2008 - IPC H02M7/5387 

FIELD: electricity.

SUBSTANCE: invention is related to electric equipment, in particular to relay systems of automatic current regulation, and may be used in power transducers of direct and alternating current with circuit of negative feedback by current of inverter load. Method of current regulation at the output of bridge transistor inverter, which is made from parallel connected to source two-switch modules with logical devices, which provide for open condition of top or bottom transistors of two-switch modules, at which the instant value is measured and current mark at the outlet of inverter, the measured value is compared with the setting signal of current, the mark is identified and the value of their difference (error signal), after the error signal achieves the threshold value, the transistors are switched only in one of two switch modules, and with open only top or only bottom transistors of modules the time τ delay starts, and with unchanging mark of error signal, transistors of two-switch module are switched, and in case of error signal mark change and reaching threshold value, transistors of first module are switched until time τ delay elapses.

EFFECT: increases efficiency factor and precision of inverter regulation.

3 cl, 2 dwg