Circuit Diagram of Gaining 0~433V voltage by star connection of three voltage regulators

Published:2011/6/25 10:47:00 Author:Vicky | Keyword: 0~433V voltage, star connection of three voltage regulators | From:SeekIC

As shown in the picture, by adopting star connection of three voltage regulator (TA1, TA2, and TA3), the range of voltage regulating is expanded and the highest voltage can be 433V. Connect X1, X2 and X3 together which belong to TA1, TA2 and TA3 respectively, and connect A1, A2, and A3 triphase L1, L2 and L3 of 380V power supply, so that 433V voltage is gained in the output end of Q1 and Q2 or Q2 or Q3. However, this connection methond requires balance of triphase voltage, and the type and specification of TA1, TA2, and TA3 should also be the same.



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