Control device for a star - or zero point - arranged kunststoffe clip power - or current transformer was

摘要

a performance orstromumformer - controller is designed to control a zero - angeklammerten stromumformervorrichtung with four selbstlu00f6schenden elements (s1 to s4).the sequentially in series between two endanschlu00fcsse a zwischenanschluu00df broken power supply (vd1, vd2) are switched.four parallel to the selbstlu00f6schenden elements and in the opposite direction to which freilaufdioden (d1 to d4), a series connection of two anklammerdioden (d5d6) in parallel with a series connection of the first and third selbstlu00f6schenden element in a direction opposite to and switchedand with the zwischenanschluu00df power supply node is associated. to exhibit.the control unit includes a circuit (cu, gu (s) to generate a first pulsbreitenmodulations orpwm steuersignals (ei) of a mode according to a load current (iu), and a pwm circuit (lim1, lim2, a1, a2, trg, c1c2) for converting the first pwm steuersignals in second pwm control signals (g1, g2) mode.which is the sum of the mode of the first pwm steuersignals and a width according to the starting and abschaltperioden each selbstlu00f6schenden element equivalent isand the zuspeisen the second pwm steuersignals to the first to fourth selbstlu00f6schenden elements.