FIELD: electrical engineering.
SUBSTANCE: method for compensating the distortion of the pulse shape is proposed, which is implemented in such a way that in an analog adder the pulses coming from the current transformer are summed in a certain proportion with the pulses obtained from the output signals generated by the integrated PWM controller to control the power switches by the method of their logical summation, transmit through the differentiating link and attenuate in the attenuator; moreover, the attenuator coefficient is set in such a way that the short-term compensating addition to the signal from the output of the current transformer, formed in this way, partially or completely compensates for the effect of interference caused by the influence of parasitic parameters of the converter circuit elements.
EFFECT: creating a method for compensating the distortion of the shape of the pulses, which has a compensating effect of interference on the current control circuit by summing the main (measured) signal in the required proportion with short sawtooth voltage pulses of negative polarity.
1 cl, 6 dwg
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